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PLAN NOTES
<br />R301A Design.
<br />Building S and structures, and OIL parts thereof, shckL( be constructed to safety support oil( I inctudin
<br />Loads, Live toads, roof toads, flood toads and wind loads as prescribed by this code, The consotclrculs�tion of �Jildapcl
<br />,,s
<br />and structures shal( result in a system that provides a complete (ociol fath capable of transferring aR loads t om
<br />their point of origin through the toad -resisting elements to the founcla ion.
<br />Exception : Bui(cll�)gs and structures Located within the High-Vetocity Hurricane Zone shot[ comply only with
<br />Sections R302 to R324, inclusive and inclusive the provisions of Chapter 44
<br />R301.1.1 Alternative provisions.
<br />As an alternative to the requirements in Section R301.1 the following standards are permitted subject to the
<br />Limitations of this code and the imitations there in,
<br />Where engineered design is used in conjunction with these standards the design shot[ comply with the Florida
<br />Building Code, Building .
<br />1. American Forest and Paper Association (AF&PA) Wood Frame Construction Manual (WFCM).
<br />2. American Iron and Steel Institute (AISI), Standard For Cold -Formed Steel Framing Prescriptive Method for
<br />One- and Two-Famity Dwellings (COFS/PM),
<br />R30112 Construction systems,
<br />The requirements of this code ore loosed on platform and balt(cion-frame construction for (icil-it-frame bui(olinys. The
<br />requiremaents for concrete and masonry buildings are loosed on a balloon framing system. Other framing s y s ems
<br />must have equivalent detailing to ensure force transfer, continuity and compatible deformations.
<br />R30113 Eriouir�eered design,
<br />When a , (cling of otherwise conventional construction contains structural elements exceeding the Limits of Section
<br />R301 or otherwise, not conforming to this code, these elements shalt be designed in accordance with accepted
<br />engineering practice, The extent of such design need only clemonstrate comp(iance of nonconventional elements with
<br />other applicable provisions and shaLt be compiatibile with the performance of the conventional Framed system.
<br />Engineered design in accordance with the Florida Building Code, Building is permitted for all buildings and structures,
<br />and parts thereof, included in the scope of this code,
<br />R301.2.1 Wind Limitations.
<br />Buitclin s and portions thereof shati, be Limited by incl speed, as clefire in Table R301.2<1), and construction methods in
<br />accoryance with this code. Basic wind speeds shialtwloe determined From Vigure R301.2(4). Where different construction methods
<br />and structural miateriats ore used For various pqrtions of a building, the applicalote requirements OF this section For each
<br />Yortion shalt apply, Where loads for windows, sk Y,,ghts and exterior doors are not otherwise speciFiecl, the Loads listed In
<br />acite R301.2(2) adjusted for height and exposure per Table R30i.2(3), shalt loe used to determine design Load performance
<br />requirements For windows and cl ors.
<br />R301.2.1.1 Design criteria,
<br />Construction in regions where the basic wind speeds Prom Figure R301.2(4) equal or exceed 100 mites per hour (177.1 km/h)
<br />shalt loe designed in QccorclQnce with one of the following:
<br />1. American Forest and Paper Association (AF&PA) Wood Frame Construction Manual. for One- and Two-FcLmiIy DweiLings (WFCM)j
<br />2. Minimum Design Loads for BuiLclinqs and Other Structures (ASCE-7);
<br />3. American Iron and Steel Institu -te (AISI), Standard for Cotcl-Formecl Steel Framing?Prescriptive Method for One- and
<br />Two-famiLy Dwellings (COFS/PM),
<br />4. Concrete construction shall be designed in accorclance with the provisions OF this code.
<br />5. SBCCI SSTD 10 shalt be permitted for buildings for a basic wind speed OF 130 mph (58 m/s) or Less in Exposure B and
<br />110 mph (49 m/s) or Less in Exposure C in accordance with Figure R301,2(4).
<br />(D. The FC&PA Guide to ConcretF Masonrz Residential CorfpIrrti i in High Wind AreQ:s 15
<br />o Cr (58 m/s) or less in Exposure B and 110 mp m/s) or
<br />concrete masonry buildings or a bo, ic wind s eed 3 mp hot( loe permitted For ha?Aca b (e
<br />Less in Exposure C in QccorclQnce with Figure 001.2(4)j or
<br />7. The WPPC Guide to Wood Construction in High Wind Areas shcJI be permitted for appticalo(e wood -frame buildings for a basic
<br />wind speed of 130 mph (58 m/s) or less in LXposure B and 110 mph (49 m/s) or Less in Exposure C In accordance with
<br />Figure R301.2(4).
<br />R301,211.1 Design.
<br />The PoRowing design guide shalt loe accepted as conforming to accepted engineering practices: AAF Guide to Aluminum
<br />Construction in High -Wind Areas.
<br />R301.2.1.2 Internal pressure,
<br />Windows in buitclingg Located in wiricl-bornf debris. regi . ons s ei opL7nhinV -b - debris or
<br />the loulIding shaIL Tartlatty halt have gla� Cl
<br />open . enciosL nice wit h.protectel From wind CE1,
<br />e designed as a ebris :rd building in accor( a uiId Code, Icing, Blazed
<br />n otection for wind-borne shall meet the requirements of the Large Missile Test
<br />r'
<br />r 0 F996 and OF ASTM E 1886, SSTD 12, cir TAS 201, 202 and 203 referenced tF)erein, I r1p
<br />ASTM
<br />(1) Opening in sunrooms, balconies or enclosed porches constructed under existing roofs or decks are not required to be
<br />protected provided the spaces are separiated from the building interior by a wall and at( openings in the separating watt
<br />ore protected in accordance with this section. Such space shQTt be permitted to be designed as either pQrtiQt(y enclosed
<br />or enclosed structures.
<br />(2) Storage sheds that are not designed For human habitation and that have a floor area of 720 square Peet (67 m2) or
<br />less are not required to comply with the mandatory wind-borne debris impact standard of this code,
<br />Exception: Wood structural panels with a minimum thickness of 7/16inch (11,1 mm> and a maximum span of 8 Feet (2438 mm)
<br />shall. be permitted for openin protection in one- and two-story buildings. Panels shot[ be precut to cover the 9(Qzecl
<br />opepings with attachment harLare provided. Attachments shall be provided in accordance with Table R301.2.1 . 2 or shot( be
<br />designed to resist the components Qrcl cladding (oads determined in accordance with the provisions of the Florida
<br />Building Code, Building.
<br />R301.213 Wind speed conversion.
<br />When referenced documents are based on fastest mile wind speeds, the three second gust wind velocities of Figure R301,2(4)
<br />shalt be converted to fastest mile wind velocities using TabLe R301.2.1.3.
<br />R301.214 Exposure category.
<br />For each wind direction considered on exposure cQteq�or� that adequately reflects the characteristics of ground surface
<br />irrepularitles shot( be determined �or the site at whic he louiLcling,r)or structure is to be constructed For Q site Located
<br />in t e transition zone loetween categories, the category resulting the Largest wind Forces shalt apply, Account shot[ be
<br />taken of var' t'Ons in gjrourd surface roughness that arise from natural toipoRr!:�phy and vegetation as well as from
<br />constructed ?eclktures, For any given wind irection, the exposure in which 0, sp citic building r other structure is sited
<br />shaLL be assessed as being one of the following categories:
<br />1. Exposure A ' Large city centers with at least 50 percent OF the butclings having a height in excess of 70 Feet
<br />(21 336 mm). Use OF this exposure category shall loe limited to those areas for which terrain representative OF Exposure
<br />At�revcits in the upwind direction for a clistQnce of at Least 0.5 mile (0.8 km) or 10 times the height of the buil[cling or
<br />a er structure, whichever is reater, Possible channeling effects or increased velocity pressures clue to the buitcling
<br />or structure loeing tocated in qhe wake of acl 'a nt buildings shall be taker) into account.
<br />2, Exposure B. Urban and suburban areas, wooded 1C11rL,;as or other terrair with numerous closely spaced obstructions having
<br />the size of sinilge-famity dwellings or Larger. Exposure' B shall, be assumed unless the site meets the definition of another
<br />type exposure.
<br />3. Exposure C. Means, except in the High-Vetocit H Zone, that area which Lies within 1,500 feet (457 mm) of the
<br />1,�00 urricare
<br />coastal construction control tine, or within feet (457 mm) of the mean high ticle Line, whichever is less. On barrier
<br />!stands, Exposure C shatt be applicable in the coastal building zone set forth in Section 161.55(4), Florida Statutes.
<br />4. Exposure D. Flat, unobstructecl areas exposed to wind flowing over open water (excluding shorelines in hurricane
<br />frone regions) For a distance of at Least 1 mile (1.61 km). Shorelines in Exposure D inclucre intancl waterwa�h,�sth,
<br />akes and coastal, areas OF bu�re,t
<br />California, Oregon, Washington and Alaska. This exposure shcL(I appt onLy to e , iclings
<br />and other structures exposed to the wind coming,,fr am, over the water. Exposure D extends inlyand F rom the shoretine a
<br />distance of 1,500 feet (4b7 m) or 10 times the ht a the building or structure, whichever is greater.
<br />R301.215 Basic wind speed,
<br />The basic w rid d in miles per hour, for the cleveLopment of wincRoacls, shall, be determined from Figure R301.2(4). Basic
<br />wind speed Pcirsfheee special wind regions indicated, near mountainous terrain and near ) es shot( be in accorclance with
<br />ar� by Local ordinance using
<br />locat.Ayrisclict I or) requireme� ts. The exact Location of winy sp?ed Lines sh�1,1. be estalokisTe
<br />reco zed p hysical landmarks such as major roads, cQr)oL s, rivers and to e shores wherever possible.
<br />R301,2.2 Seismic provisions, Reserved.
<br />Figure R301.2(2) Reserved.
<br />R301.2,3 Snow loads. Reserved.
<br />Figure R301,2(5) Reserved,
<br />R301.2.4 F[ociclipl,ain construction,
<br />This code specifically defers to th e xutho rity granted to Local government loy Title 44 CFR, Sections 51) and 60, This code
<br />is not intended to supplant or supercede Local ordinances adopted pursuant to that authority, nor are Local PtoccIpLain
<br />management ordinances to be deemed amendments to the code.
<br />R301.2,5 Structures seaward of a coastal construction tine.
<br />Structures Located seaward of the coastal construction line shall loe designed to resist the predicted Forces OF a
<br />100-yecr storm event in accorclances with Section 3109 of the Florida Building Code, Building,
<br />SECTION R303
<br />LIGHT, VENTILATION AND HEATING
<br />R3031 Habitable rooms,
<br />All habitable rooms shall, be provided with aggregatedylazing area of not Less than 8 percent of the floor area of such
<br />rooms. Natural ventilation shot( be throu windows, oors,louvers or other approved o entin
<br />.9s to the outdoor air. Such
<br />open in s shall, Ice provided with ready ac2le'ss or shall otherwise be readily controLtabLe gy e building occupants. The minimum
<br />openaLn area to the outdoors shal( be 4 percent of the floor area being venti(Qteol,
<br />Exceptions:
<br />1. The 9,Lazed areas need not be operable where the opening is not required by Section R310 and an approved Mechanical
<br />ventitation system is provided capable OF producing 0,35 air chanyetper hour in the room or a whote-house mechanical
<br />ventitation system is installed capaWe of supplying outdoor vent I a or) air of 15 cubic Feet per Minute (cFm) (7�08 L/s)
<br />per Occupant computed on the loasis OF two occupants for the First bedroom and one occupant For each additional bedroom.
<br />2. The glazed areas need not loe provided in rooms where Exception I Qloove is satisfied and cirtificial, light is provided
<br />capabLe of -proclucin_ an avera
<br />c% pe illumination of 6 footcandles (6,46 lux) over the area of the room at a height of
<br />30 inches (762 mm) L ove the FlIoor level.
<br />R303,2 Adjoining rooms,
<br />For the purpose of determinin I' ht ncl ventilation requirements, any room shall be considered as a portion of an CLV,cilning
<br />ci� ITe a
<br />room when at Least one half t area of the common wall is Open and unobstructed and provides cin opening of no ess
<br />than one -tenth of the floor area of the interior room lout not Less than 25 square feet (2.32 m2),
<br />Exc P n: Openings required for Liqht and/or ventitation shatt be permitted to open into a thermally isoiatecl sunroom
<br />hot there is an operable area I., een the ablf'ining room and the sunroom addition or
<br />addrelo"110or patio cover, provided t tw
<br />yatio cover of not less than one -tenth of the floor area of the interior room ut not Less than 20 square feet (1.86 m2).
<br />he Minimum openabLe area to the outdoors shot( be based upon the total floor area oeing ventilated.
<br />R303.3 Bathrooms.
<br />Bathrooms, water closet compartments Qncl other similar rooms shial[t be provided with aggregate glazing area in windows OF
<br />not Less than 3 square Feet (0.279 m2), one-half of which must be operable.
<br />Exception: The glazed areas shall not be required where artificial tight and a Mechanical, ventilation system are provided.
<br />The minimum ventilation rates shot[ be 50 cfm (23�6 L/s) for intermittent ventilation or 20 cfm (9.4 L/s) for continuous
<br />ventilation, Ventilation air from the space shall be exhausted directly to the outside,
<br />R303.4 Opening location.
<br />Outdoor intake and exhaust openings shot( be Located in accordance with Sections R303.4,1 and R303.4.2.
<br />R303.4.1 Intake openings.
<br />Mechanical and gravity outdoor air intake openings shot( be Located a minimum of 10 feet (3048 Min) from any hazardous
<br />or noxious contaminant such as vents, chimneys, p[umloiny vents, streets, alleys, parking Lots and loading clocks, except as
<br />otherwise specified in �his code, Where Q source of con ciminant is located within 10 feet (3048 mm) of an ir)tQke opening,
<br />such opening shatL loe Located a minimum of 2 feet (610 mm) below the contaminant source,
<br />For the purpose of this section, the exhaust from dwelling unit toilet rooms, biathrooms and kitchens shot[ not be
<br />Considered as hQzQrclous or noxious,
<br />R303.4.2 Exhaust openings,
<br />Outside exhaust openings shot( be located so as not to create a nuisance, Exhaust air shQtL not be directed onto walkways,
<br />R303,5 Outside opening protection,
<br />Air exhaust and intake openings that terminate outdoors shall. be protected with corrosion -resistant screens, Louvers
<br />or grilles having a minimum opening size of X inch (6.4 mm) and Q maximum opening size of 34 inch (12.7 mm), in any dimension.
<br />Openings shall be protected against Local, weather conditions, Outdoor air exhaust and] intake openings shalt meet the
<br />provisions for exterior wall opening protectives in accordance with this code.
<br />R303.6 Stairway illumination.
<br />All interior and exterior stairways shoU be provided with Q means to Illuminate the stairs, including the landings and treads.
<br />Interior stairways shalt be provided with ar) artificia( Light source Located in the immediate vicinity of each Landing of the
<br />s t air woL Y�OFTra interior st,,�irs the art!-Ficio
<br />tight sour s shall be maye of iltuminiatin, treads Val Ltnclinps to levels not
<br />than 1 o c nelte (11 lux measured at t e center oTetrecols and an ings, Exterior AcdrwQys 5 all e p ovicled with an
<br />artficial. light source Located in the immediate vicinity of the top (anclino of the stairway. Exterior stairways providing
<br />access to a basement from the outside gracle Level shQLI be provided with an artificial Light source located in the immediate
<br />vicinity of the bottom Landing of the stairway,
<br />Exception; An artificial tight source is not required at the top and bottom landing, provided an artificial Light source is
<br />located directly over each stairway section,
<br />R303.6.1 Light activation.
<br />The control for activation of the required interior stairway tig�tinq shatt be accessible at the top and bottom OF each
<br />stairway without traversing any steps. The illumination of exterior stairways shall be controlled From inside the dwelling unit.
<br />Exception: Lights that are continuously illuminated or automatically controtted,
<br />R303.7 Required g(Qzecl openin s.
<br />Required glazed openings shat? open directly onto a street or public alley, or a yard or court Located on the some lot
<br />as the building.
<br />R303,7.1 Roofed porches.
<br />Required glazed openings may Face into a rcofecl porch where the porch abuts a street, yard or court and the (onqer side
<br />of the porch is at Least 65 percent open and unobstructed and the ceiling height is not Less than 7 feet (2134 mm).
<br />R303.8 Required heating.
<br />Wher the winter design temperature in Table R301.2(l) is below 60'F (16*C), every dwelling unit shall be provided with heating
<br />facitities capable of Maintaining a minimum room temperature of 68*F (20*C) at a point 3 feet (914 mm) above the floor and
<br />2 FTett (610 mm) from exteri r n(tt inuatLdh�bitabl? rooms at the i;Iesi temperature, The installation of one or more
<br />por clo e space heaters sha?t no e se o achieve compliance with Wis section.
<br />SECTION R304
<br />MINIMUM ROOM AREAS
<br />R304.1 Minimum area,
<br />Every dwelling unit shall have at (east one habitable room that sha(IL have not less than 120 square Peet (112 m2)
<br />of gross floor area,
<br />R3042 Other rooms.
<br />Other habitable rooms sha(L have a Floor area OF not less than 70 square Feet (6,5 m2).
<br />Exception; Kitchens,
<br />R304.3 Minimum dimensions,
<br />Habitable rooms shall, not be Less than 7 feet (2134 mm) in any horizontal dimension,
<br />Exception: Kitchens,
<br />R3134.4 Height effect on room area,
<br />Portions of a room with a sloping ceiling measurin Less than 5 feet (1524 mm) or a Furred ceiling measuring less than
<br />7 Peet (2134 mm) from the Finished F(oor to the �Inishecl ceiling shot( not be considered as contributing to the Minimum
<br />required habitable area for that room,
<br />SECTION R305
<br />CEILING HEIGHT
<br />R305,1 Minimum height.
<br />Habitable rooms, hollwpys,mccirriclors, bathrooms, toilet rooms, laundry rooms and basements shaR have a ceiting height of not
<br />less than 7 feet (2134 m ), The required height shot( be measured from the finish floor to the lowest projection
<br />from the ceiling.
<br />Exceptions:
<br />1. Beams and girders spaced not less than 4 feet (1219 mm) on center may project not more than 6 inches (152 mm) below
<br />the required ceit' h ' i Ih t
<br />Ceilings in in L ',qho'ut habitacite spaces may project to within 6 feet, 8 inches (2032 mm) of the finished fLoorj
<br />2 basem�nqs w
<br />and 10eam S, girders, ducts or other obstructions may project to within 6 feet, 4 inches (1931 mm) of the finished floor,
<br />3. Not more than 50 percent of the required floor area of Q room or space is permitted to have a sloped ceiling Less than
<br />7 feet (2134 mm> in height with no portion of the required floor arect Less than 5 feet (1524 mm ) in height.
<br />4, Bathrooms shalk have a minimum ceiting he ht of 6 Feet 8 inches (2036 mm) over the fixture and at the front cIearance
<br />area Fair Fixtures as shown in Figure R3�0.2. A shower or tub e$Luipped with Q showerhead shot[ have a minimum ceiting height
<br />OF 6 feet 8 inches (2036 mm) above a minimum area 30 inches (76) mm) by 30 inches (762 mm) at the showerhead.
<br />SECTION R307
<br />TOILET, BATH AND SHOWER SPACES
<br />R307-1 Space required,
<br />Fixtures shall be spaced as per Figure R307.2.
<br />R307.2 Bathtub and shower spaces,
<br />Bathtub and shower Floors and walls Qbove bQthtu1os with installed shower heads and in shower compartments shati. be
<br />Finished with Q nonabsorbent surface, Such wall. surfaces shot( extend to a height of not Less than 6 feet (1829 mm)
<br />alocive the floor.
<br />R308-4 HQzQrclous locations.
<br />The following shall be considered specific hazarclous Locations for the purposes of gIazing;
<br />1. Glazing in swinging doors except jalousies.
<br />2. Glazing in fixed and sliding panels of sliding door assemblies and panels in sliding and loifotcl closet
<br />door assemblies,
<br />3. Glazing in storm doors.
<br />4. Glazing in at[ unframed swinging cloors.
<br />5. Glazing in doors and enclosures For hot tubs, whirlpools, saunas, steam rooms, bathtubs and
<br />showers. Glazing In any part of a building wall encLosin-g these compartments where the loottom
<br />exposed edge of the glazing is Less than 60 inches Qa24 mm) measured vertically above any
<br />standing or walking sur12'Qce.
<br />6. Glazing, in an individual fixed or 0 erable panel adjacent to a door where the nearest vertical edge
<br />is within a 24-inch (610 mm) arc OP the door in o. closed position and whose bottom edge is Less
<br />than 60 inches (1524 mm) above the Floor or walking surface.
<br />7. Glazing in an individual fixed or operable panel, other than those Locations described in Items 5
<br />and 6 above, that meets at( of the Following conditions:
<br />7.1. Exposed area of an individual pare greater than 9 square feet (0.836 m 2
<br />7.2. Bottom edge Less than 18 inches (457 mm) above the floor,
<br />7.3. Top edge greater than 36 inches (914 mm) above the floor,
<br />7.4. One or more walking surfaces within 36 inches (914 mm) horizontally of the glazing.
<br />8. Alt glazing in railings regardless of an area or height above a walking surface, Included are
<br />structural baluster panels and nonstructura( in-fIR ponels.
<br />9. Glazing in walls and 1�'ences enclosing indoor and outdoor swimming pools, hot tubs and spas where
<br />the bottom edqe of the glazing is Less than 60 inches (1524 mm) above a walking surface and within
<br />60 inch es (1524- mm) horizontally of the water?s edge, This shall, apply to single glazing and all
<br />panes in multiple glazing.
<br />10. Glazing adjacent to stairways, landin s and ramps within 36 inches (914 mm) horizontally of a walking
<br />surface when the exposed surface N the glass is Less than 60 inches (1524 mm) above the plane
<br />of the adjacent walking surface.
<br />1L Glazing adjacent to stairways within 60 inches (1524 mm) horizontally of the bottom tread of (a
<br />stairway in any direction when the exposed surface of the grass is Less than 60 inches (1524 mm)
<br />above the nose of the tread,
<br />Exception: The fottowing products, materials and uses are exempt From the above hazardous locations:
<br />1. Openings in doors through which c. 3-inch (76 mm) sphere is ur)QIOIe to pass.
<br />2. Decorative glass in Items 1, 6 o r 7.
<br />3. Glazit�g in Section R308.4 , Item 6, when there is an intervening watt or other permanent loarrier
<br />barrier between the door and the glazing.
<br />4. Glazing in Section R308.4 , Item 6, in watts perpendicular to the plane of the door in a closed
<br />Fosi ti.on or where access through the door is to a closet or storaqe area 3 feet (914 Mm) or
<br />ess in depth. Glazing in these applications shatt comply with Section R308.4
<br />5. Glazing in Section R308.4 , Items 7 and 10, when a protective bar is install,e�ltoenmJe accessible
<br />sicle(s) of the glazing 36 inches ± 2 inches (914 ± mm 51 mm) above the floor. The loar shall loe
<br />capable of withstanding a horizontal load of 50 pounds per linear foot (74.5 kg/m) without
<br />contacting the glass and be a minimum of 1A inches (38 mm) in height.
<br />6. Outboard panes in insulating glass units and other multiple glazed panels in Section R308.4 , Item 7,
<br />when the bottom edge of the gLass is 25 feet (7620 mm) or more above gracle, a roof,
<br />walking surf'ace, or other horizontal Ewithin 45 degrees (0.79 racl) of horizontal] surface adjacent
<br />to the glass exterior.
<br />7. Louvered windows and jaLousles complying with the requirements of Section R3082
<br />8. Mirrors and other glass panels mounted or hung on a surface that provides a continuous
<br />backing support.
<br />9. Safety glazing in Section R308.4 , Items 10 and il is not required where:
<br />9.1. The side of a stairway landing or ramp has a guardrail or harclraiI, including balusters or in -Pill
<br />aneits, complying with �he provisions of Sections 1012 and 1607.7 of the Florida Building Code,
<br />uiIdingj and
<br />92. The plane of the glass is greater than 18 inches (457 mm) from the raiIing.
<br />R308.5 Site built windows.
<br />Site built windows shalt comply with Section 2404 of the Florida Building Code, Building.
<br />R308.6 Skylights and sloped glazing.
<br />Skylights and sloped glazing shal.1, comply with the following sections,
<br />R308.6,1 Definitions.
<br />SKYLIGHTS AND SLOPED GLAZING. Glass or other transparent or translucent glazing material installed at a
<br />slope. of more than 15 degrees (0.26 rad) From vertical, Glazing materials in skylights, including unit skylights,
<br />solariums, sunrooms, roofs and sloped walls are included in this definition.
<br />UNIT SKYLIGHT. A factory assembled, gliazed fenestration unit, containing one pane( of glazing material, that
<br />allows For natural clayLiohtinp through an opening in the roof assembly white preserving the
<br />weather -resistant barrier o the roof.
<br />R308.6.2 Permitted materials,
<br />The Following types of glazing may be used:
<br />1. Laminated c)(ass with a minimum 0,015-inch (0.38 mm) poLyviny( butgra( intertayer For glass pores
<br />16 square Teet (1,5 m 2 ) or less in area located such that highest point of the glass is
<br />not more than 12 Feet (3658 mm) above a walking surface or other accessible area; for higher
<br />or Larger sizes, the minimum interlayer thickness shall loe 0,030 inch (0.76 mm),
<br />2. Fully tempered glass.
<br />3. Heat -strengthened glass,
<br />4. Wired glass.
<br />5. Approved rigid plastics.
<br />R308.6.3 Screens, general.
<br />For Fully tempered or heiat-strengthened glass, a retaining screen meetiriystl�e requirements of Section
<br />R308.6.7 shalt be instaLted below the glass, except for fully tempered glass that Mee either condition
<br />Listed in Section R308.6.5 .
<br />R308,6,4 Screens with multiple glazing.
<br />When the inboarcl pane is full tempered, heat - str enqtherecl, or wireol glass, a retaining screen meeting the
<br />requirements of Section R308.b shot[ be installed loeFow the glass, except for either condition listed in
<br />Section R30e.6.5 - ALL other panes in the multiple glazing may loe of any type listed in Section R308.62
<br />R308.6.5 Screens not required.
<br />Screens shalt not be required when fully tempered glass is used as single glazing or the inboard pane in
<br />multiple g(azing and either of the Following conclitions are met:
<br />1, Glass area 16 square feet (1.49 m 2 ) or Less. Highest point of Q(ass not more than 12 feet
<br />(3658 mm) above a walkin surface or other accessible area, nominal glass thickness not more than
<br />3 / 16 inch (4.76 mm), ang (for multiple glazing only) the other pare or panes fully tempered,
<br />laminated or wired glass.
<br />2. Glass are 11 reciter than 16 square Feet (1.49 m 2 ). Glass sloped 30 degrees (0.52 rad) or Less
<br />from vertica� ' and highest point of glass not more than 10 feet (3048 mm) above a walking surface
<br />or other accessible area.
<br />R308.6.6 Glass in greenhouses.
<br />Any �)Lazinq material is permitted to be instcLI(ecl without screen in the sloped areas of greenhouses,
<br />icled the greenhouse height at the ridge does not exceed "T
<br />prov 2 Feet (6096 mm) above gracle.
<br />R308.6,7 Screen characteristics,
<br />The screen and its fasteninqs shall, loe capable of su�porting twice the we' J ht of the Viazing, be firmly and
<br />sulostantiall, fostered to t-he framing members , and ave a mesh opening 0� no more t or) I inch loy 1 inch
<br />(25.4 mm loy &4 mm).
<br />R308,6.8 Curbs for skylights,
<br />All unit skylights installed in a roof with a pitch flatter than three units vertical in 12 units horizontal
<br />(25-percent slope) shot( be mounted on a curio extend n at Least 4 inches (102 mm) above the plane of
<br />otherwise specified in the mcLr)ul2'cLcturi g2
<br />the roof unless er s installation instructions.
<br />R308,6.13 Testing and Labeling.
<br />Exterior skylights shalt Ice tested by an approved independent testing laboratory, and shall be labeled with
<br />on approved IQloeL 1clenti12'ying manufacturer, performance charac teris tics, and approved evaluation entity
<br />to indicate comp�iance with the requirements of AAMA/WDMA 1600/IS7, Voluntary Specifications For Skylights
<br />or TAS 202 (HVHZ shall comply with TAS 202).
<br />SECTION R309
<br />GARAGES AND CARPORTS
<br />R309,1 Opening protection.
<br />11 rings from a private ciarage directly into a room used for steeping purposes shall not be permitted.
<br />Ote,
<br />h � ci�eninqs between the garage and residence shall, loe equipped with solid wood doors not less than
<br />13/8 inc es (35 mm) in thickness, solid or honeycomb core steel doors not less than 13/8 inches (35 mm)
<br />thick, or 20-minute fire -rated cloors,
<br />R30911 Duct penetration.
<br />Ducts in the garage and ducts penetrating the watts or ceilings separating the dwelling from the garage
<br />shalt be constructed of a minimum No, 26 gage (0.48 mm) sheet steel or other approved material (and shati,
<br />shalt have no openings into the garage.
<br />R309.2 Separation required.
<br />The garage shot( be separated From the residence and its attic area loy not Less than X-inch (12.7 mm)
<br />RyEsum board applied to the garage side, Garages berecith habitable rooms shall be separated from all
<br />a italo(e rooms above loy not Less than 5/8-inch (15,9 mm) Type X gypsum looarcl or equivalent, Where the
<br />separation is a flocir-ceiting assembly the structure supporting the separation shatt, also be protected by
<br />not Less than %-inch (12.7 mm) gypsu� board or equivalent.
<br />R309.3 Floor surface,
<br />Garage ftoor surfaces shot[ be of approved noncombustible material,
<br />The area of floor used for parking of automobiles or other vehicles shall be sloped to facilitate the
<br />movement of Liquids to a drain or -toward the main vehicle entry doorway,
<br />R309,4 Carports,
<br />Carports shall be open on at least two sides, Carport floor surfaces shalt be of approved noncombustible
<br />material. Carports not open or) at (east two sides sha([ loe considered a garage ancl shall comply with the
<br />provisions of this section For garages.
<br />Exception: Asphalt surfaces sha(l be permitted at ground (evelt in carports,
<br />The area of floor used for parkinq of automobiles or other vehicles shall, be sloped to Facilitate the
<br />movement of liquids to a drain or tbwarcl the main vehicle entry doorway.
<br />R309.5 Flood hazard areas.
<br />Reserved.
<br />R309.6 Automatic garage door openers,
<br />Automatic garage door openers, if provided, shall be Listed in accordance with UL 325.
<br />SECTION R310
<br />EMERGENCY ESCAPE AND RESCUE OPENINGS
<br />R310,1 Emergency escape and rescue required.
<br />Bo.seMents with habitable space and every sleeping room shaLl have at least one openiable emergency esca e and rescue
<br />openina Where basements contain one or more sleeping rooms, emergency egress and rescue ci� - ft be required in
<br />each. eeping room, but shall not be required in adjoining areas of the basement, Where emergency escape and rescue
<br />openings are provided the
<br />u shot( have a sill height of not more than 44 inches (1118 mm) above the floor, Where a door
<br />openinpahavingoa thresho below the cl ' c t )uncl elevation serves as an emer erg e��ape and rescue opening and is
<br />provid with bulkhead enclosure, thQe VuLM4,9r'enclosure shall comply with SectioR 3 3. e net clear openling cliMensions
<br />required by this section shall be obtained by the normal operation of the emergency escape and rescue opening Prom the
<br />inside. Emergency escape and rescue openings with Q finished fit( height below the acfjQcent ground e,Levation shall be
<br />provided wltl,) a window well In accordance with Section R310.2. he emergency escape and rescue opening shatt be permitted
<br />to open into a screen enclosure, open to the atmosphere, where a screer door is provided leading away From the residence.
<br />R31011 Minimum opening area,
<br />All emergency escape and rescue openings shot[ hove Q minimum net clear opening of 5.7 square feet (0.530 m2).
<br />Exception; Gracle floor openings shot( have a minimum net clear opening of 5 square feet (0.465 m2),
<br />R31012 Minimum opening height.
<br />The minimum net clear opening height shot( loe 24 inches (610 mm),
<br />R31013 Minimum opening width,
<br />The minimum net clear opening width shalL be 20 inches (508 mm).
<br />R31014 Operational constraints.
<br />Emergency escape and rescue openings shot( be operational from the inside of the room without the use of keys or tools,
<br />R310.2 Window wells,
<br />The minimum horizontal area of the window well shatL be 9 square feet (0.84 m2), with a Minimum horizontal projection and width
<br />of 36 inches (914 mm), The area of the window wetL shalt allow the emergency escape and rescue openin to 15e Put opened.
<br />Exce on: The Ladder or steps required by Section R310.21 shaLL be permitted to encroach a maximum o 6 '�5
<br />into Ptthie re uirecl dimensions of the window well, inches ( 2 MM)
<br />OL c, cq
<br />R310.2.1 L er and steps.
<br />Window wells with a vertical depth greater than 44 inches (1118 mm) shall, be equipped with a permanently affixed [adder or
<br />steps usable with the window in.3ie open position, Ladders or stqp!�drequiredo�y this section shall not be required to
<br />1 L fully
<br />comply with Sections R311.5 and 6 Ladders or rungs shot( hove an insi e width at Least 12 inches (30b mm), shall
<br />at (east 3 inches (76 mm) From the wall and shall be spaced not more than 18 inches (457 mm) on center vertically for
<br />the Put[ height of the window weIL,
<br />R310-3 Bulkhead enclosures.
<br />Bulkhead enclosures shQU provide direct access to the basement. The bulkhead enclosure with the door panels in the fully
<br />open osition sh�[ provide the minimum net clear opening required by Section R310.11 Bulkhead enclosures shot[ also comply
<br />with &ection R311. .8.2.
<br />R310.4 Bars, grills, covers and screens.
<br />Bars, grills, covers, screens or similar devices are permitted to be placed over emergency escape and rescue openings,
<br />bulkhead enclosures, or window wells that serve such openings, provided the minimum net clear opening size complies with
<br />Sections R31011 to R31013, and such devices shot[ be reteQsQbte or removalote from the inside without the use of a key,
<br />too[ or force greater than that which is required for normal operation of.the escofecto.1nd rescue openinq. The temporary
<br />Instatliation or closure OF storm sh.utters, panels, and other approved hurricane pro e on devices shot[ Foe permitted on
<br />emergency escape and rescue openir5s durinQ the threat of a storm. Such devices shcLL( not Ice required to comply with the
<br />operational constraints of S 10.1.4. WT-)iLe such protection is provided, at least one means of escape from the dwelling
<br />or clweUin unit shcilt be provided, The means et [in
<br />a 9f ?scope shaLl be within the First floor of the dw g or dwettin unit and
<br />shalt no %e toc VhwiVin a gorqlq,�� Ocppanbs P
<br />shot[ be abLe to Qc ess the
<br />_�in anioaarto?f tpe dg(ling or dwelling unit
<br />means V escape wl Ou pass 9 ough a toc al�Ae r n un er eir control.
<br />SECTION R313
<br />SMOKE ALARMS
<br />R313,1 Smoke alarms.
<br />Smoke alarms shatt be installed in the Following locations;
<br />1. In each sleeping room.
<br />2. Outside each separate sleeping area in the immediate vicinity of the bedrooms,
<br />3. On each additional story of the dwetLinq, incLuclir).q ba s ements but not incLucling crawl spaces and uninhabitable attics,
<br />In clwei(irgs or dwelling units with split . levels and" without or) intervening door between the adjacent (eve a smoke alarm
<br />Level provided that the lower Ieve is I%
<br />installed on the upper Level shall suffice for the adjacent Lower 1. te s than one
<br />full stor below the upper Level.
<br />When more �hari one smoke alarm is required to be-instaRed within an individual o1weWrig unit the alarm devices shatt be
<br />interconnected in such a manner that the actuation of one atarm will activate all of the Q(Qrms in the individual unit. The
<br />aLarm shall, be clearly audible in aLL bedrooms over background noise Levels with all intervening doors closed.
<br />ALI smoke aLarms shalt be tiste and installed in accordance with the provisions of this code ancl the household fire warning
<br />equipment provisions of NFPA ' ' �;2.
<br />R31311 Alterations, repairs and additions.
<br />When interior alterations, repairs or additions requiring a permit occur, or wher one or more sLee ing rooms are added or
<br />created in existing dwellings, the individual dwelling unit shcLIL be provided with smoke QtQrms tocateTas required for new
<br />o1wetLings, the smoRe alarms shot[ be interconnected and hard wired,
<br />Exceptions:
<br />1. Smoke atarms in existing areas shall not be required to be interconnected one] hard wired where the alterations or
<br />re airs do not result in the �.ejovalhoF lnte.�or wall or cei(ingfinir?hes, e osir,,%Jletstructur untq_!�s ttefe is on attic,
<br />U
<br />crR.L space, or basement QvQi e w ich couit provide access or hard Viping in erconnec�,,Or witho he remova
<br />of interior finishes.
<br />2, Repairs to the exterior surfaces OF dwellings ore exempt From the requirements OF this section.
<br />R313,2 Power source,
<br />In new construction, the required smoke alarms shot( receive their primary power From the building wirin wher suck) wirin
<br />is served From Q commercial source, and when primary power is interrupted, shall receive power From Q %attery, Wiring sRa(l
<br />be permanent and without a disconnecting switch other than those required for overcurrent protection. Smoke alarms shall,
<br />be permitted to be loattery operated when installed in buildings without commercial power or in buildings that undergo
<br />alterations, repairs or acloritions regulated by Section R313.1.1.
<br />SECTION R319
<br />PROTECTION AGAINST DECAY
<br />R319.1 Location required.
<br />In areas subjqct to decay damage as established by Table R301.2<1), the fo(LowinQ locations shalt require the use of an
<br />approved species and grade of lumber, pressure treated in accordance with AWFA C1, C2, C3, C4, C9, C15, C18 , C22, C23, C24,
<br />C28, C31, C33, P1, P2 and P3 , or decay -resistant heartwood of redwood, black locust, or ceclars,
<br />1. Wood joists or the bottom of a wood structural floor when closer than 18 inches (457 mm) or wood girders when closer
<br />than 12 inches (305 mm) to the exposed ground in crawl spaces or unexcavated area Located within the periphery of the
<br />building founclation,
<br />2. ALI wood framing members that rest or) concrete or masonry exterior foundation watts and are Less than 8 inches
<br />(203 mm) From the exposed ground.
<br />3. Silts and sleepers on a concrete or masonry slab that is in direct contact with the ground unless separated from such
<br />slialp by an impervious moisture barrier.
<br />4, The ends of wood girclers entering exterior masonry or concrete walls having c[eQrar)ces of less than 0.5 inch (12,7 mm)
<br />on tops, sides and ends.
<br />5. Wood siding, sheathing and wall framing on the exterior of Q buiLding having a c[earance of less than 6 inches (152 mm)
<br />from the ricl
<br />6. Wood s1r`.0CUTrur'a[ Members supporting mcisture-permealolle Floors or roofs that are exposed. to the weather, such Qs
<br />concrete or masonry stabs, uness separated from such floors or roofs by an i m pervious moisture barrier.
<br />7, Wood Furring strips or other wood framing members attached directly to the interior of exterior masonry wQtIs or
<br />con�retp watts below grade except where on approved vapor retarder is applied between the wall and the furring strips
<br />or raming members.
<br />R31911 Ground contact,
<br />ALI wood in contact with the ground and that supports permanent structures intended For human occupancy shaLl. be
<br />ap ed pressure preservative treated wood suitalote for ound contact use, except untreated wood may be used where
<br />eriptirroe'ly below groundwater Level or continuously submerged ignrfresh water,
<br />R319.1.2 Geographical areas.
<br />ARproved raturallyuclurabLe or pressure preservativeIy treated wood sha(l be used for those portions of wood members
<br />t at Form the str ctural, supports of buildings, balconies, porches or similar permanent building appurtenances when such
<br />members are exposed to the weather without adequate protection Prom Q roor, eave, overhang or other covering that
<br />would prevent moisture or water accumulation or) -the surface or at joints between members. Uepencling an Local, experience,
<br />such members may include:
<br />1. Horizontal members such as girders, joists and decking,
<br />2. Vertical members such as posts, poles anol columns.
<br />3. Both horizontal and vertical members.
<br />R319.1.3 Posts, poles and columns.
<br />Posts, potes and co(umnsosupp?rting permianen,� struc ures thp ore embedoed in concrete in direct contyt with the
<br />L
<br />roun or embedded in c ncre e exposed to t e weat�er shatt �e approved pressure preserviativety trea ecl wood suitable
<br />or.?.round contact use,
<br />R319 4 Wood columns,
<br />Wood columns shall be approved wood of natural, decay resistance or approved pressure preservativety treated wood,
<br />Exceptions:
<br />1. Posts or columns which are either exposed to the weather or Located in basements or ceUQrs, supported by piers or
<br />metal peclestaLs pro�ecting 1 inch (25 . 4 mm) above the floor or finished grade and 6 inches (152 mm) above exposed earth,
<br />and are separated here From by on approved impervious moisture biarrier.
<br />2. Posts or cotumns in enclosed crawl spaces or unexcavated areas Located within the periphery of the building, supported
<br />bi� a concrete piermor m . etal Pe�destal at o. height greater than 8 inches (203mm) from exposed ground, are separated
<br />t ere from by an I pervious moisture barrier.
<br />R319.2 Quality Mark.
<br />Lumber and plywood required to be pressure preservative((, treated in accordance with Section R319.1 shall bear the quality
<br />mark OF on approved inspection agency that maintains con-inuirgitsu �rvision, testi and inspection over the quality of the
<br />that has loeen approved -by an accreditation body hafEcompties with n�
<br />roduct and t e requirements of the American Lumber
<br />�tanclarcl Committee treated wood program.
<br />R319.2.1 Required information.
<br />The required quatity mark on each piece of pressure preservativety treated lumber or plywood shall contain the
<br />foLtowing information:
<br />1, Identification OF the treating plaint.
<br />2. Type of preservative,
<br />3. The minimum preservative retention.
<br />4. End use for which the product was treated.
<br />5. Standard to which the product was treated.
<br />6. Identity of' the aT proved inspection agency,
<br />7. The clesiqnation ?. Iry,? if appLicalote.
<br />E eption: Quality marks on lumber less than I inch (25.4 mm) nominal thickness, or Lumber Less than nominal I inch bge5Qinches
<br />x�. by 127 mm) or 2 inches by 4 inches (51 mm by 102 mm) or Lumber 36 inches (914 mm) or Less in length shot
<br />(2 4 mm I ppIied
<br />by stamping the Faces of exterior pieces or by end Labelling not less than 25 percent of the pieces of a bundled unit.
<br />R319.3 Fasteners,
<br />Fasteners for pressure preservative and Fire -retardant - tre a tecl wood sha[L be OF hot -clipped galvanized steel, staintess
<br />steel, silicon bronze or copper.
<br />R32018
<br />If a registered termiticide formulated and registered as a wood treatment is used for subterranean termite prevention,
<br />Sections R320.1.1 through R32016 do not apply. AppIlication OF the wood treatment termiticide shot[ be as required by (abeL
<br />directions For use, and must be complete c prior to final ouiLding approvaI.
<br />R320,2 Penetration,
<br />Protective sleeves around metaltic piping penetrating concrete s(alo-on-grade floors shot( not be of cet(ulose-containing
<br />materials and, if soil treatment is used For subterranean termite protection, shot[ receive application OF a termiticicle in
<br />annular space between sleeve and pipe.
<br />R320,3 C(eaniniq.i.,
<br />Celts and cav in masonry units and air gaps between brick, store or masonry veneers and the structure shall, be
<br />c1leaned of all nonpreservative treated or nonnatura(ty durable wood, or other cettulose-containing material prior to
<br />concrete placement,
<br />ExceEtIon; Inorganic mcLteriQ( mcinuFactured for closing cells in Foundation concrete masonry unit construction or clean
<br />eart fill placed in concrete Masonry unit voids below slob Level before termite treatment is performed.
<br />R320.4 Concrete bearing Ledge.
<br />Brick store or other veneer shot( be supported by a concrete bearing (eclQe at Least equal to the total thickn ss of the
<br />brick� store or other veneer, which is poured integrally with the concrete foundation, No suWemental, concrete Foundation
<br />pours which wit( create a hidden cold joint shall be used without supplemental treatment in t e foundation unless there is
<br />an approved physical loarrier, An approved physical barrier shall, atso be instatted from below the wall SiLit plate or first
<br />lotock course horizor)tQtIy to embed in a mortar , oint. IF masonry veneer extends betow grade, a termite protective
<br />treatment must be applied to the cavit create� between the veneer and the foundation, in Lieu of a physical barrier.
<br />Exception: Veneer supported loy a shetvangLe or Lintel secured to the foundation siclewati, in accordance with ACI 530/ASCE
<br />5/TMS 402, provided at Least a 6-inch (152 mm) clear inspection space of the foundation sidewatl exterior exist between
<br />t% veneer and �hqitop n R,Osocl mutch e r �r an
<br />I N cp.f cQ
<br />en�
<br />0 TV a tq
<br />. wic Landscaping component, cleck, apron, porch, walk or y
<br />0 er work imme ia e y a ja r 661joining he s ruc e.
<br />R320.5 Pressure preservativety treated and naturaIt resistant wood.
<br />Heartwood of redwood and eastern red cedar shaLL �e considered termite resistant. Pressure preserv�tiveily treated wood
<br />a numna tura termite -resistant wood shalt not loe used as an�hysical barrier untes5 Q loarrier can be inspected For any
<br />ter ite she r tubes around the inside and outside edges a joints of Q barrier,
<br />R320.5.1 Field treatment,
<br />Field cut ends, notches and drilled holes of pressure preservativety treated wood shcLLL be retreated in the field in
<br />accordance with AWPA M4.
<br />R320.6 Foam plastic protection.
<br />Extruded and expanded lystyrene, polyisocyonurate and other foam plastics shall, not be installed on the exterior face
<br />or under interior or exfeorLior foundation walls or stab foundations Located be I ow gracle, The c(earance between foam
<br />plastics installed above grade and exposed earth shall be at Least 6 inches (152 mm).
<br />Exceptions:
<br />1. Bu it dinqs where the structuriat Members of walls, ftoors, ceitings and roofs are entirety of noncombustible materials or
<br />pressurq preservativeLy treated wood.
<br />2. When in addition to the requirements OF Section R320,1, on approved method of protecting the Foam plastic and
<br />structure from subterranean termite damage is provided,
<br />3. On the interior side of basement walls,
<br />R32211
<br />Ali new singLe-famity houses, duplexes, triptexes, condominiums and townhouses shot[ provide at Least one bathroom, Located
<br />Maximum possible where bathrooms are provided on habitable grade Levels, with a door that has a 29-inch (737 mm)
<br />clear opening privacy,
<br />a� However, f only a tolet room is provided at grade level, such toilet rooms shatt have a clear opening OF
<br />not Less th 29 inches (737 mm).
<br />FOUNDATIONS SECTION R401
<br />Exceptions!
<br />R401.1 Application.
<br />The provisions of this chapter shall control the design and construction of the foundation and foundation
<br />spaces for all buildinqs,
<br />wood foundations shall be designed and installed in accordance with AF&PA Report No. 7 (see Section R301.2.1.1),
<br />1. The provisions of this chapter shatt be permitted to be used for wood foundations only in the
<br />f oUo wing situations:
<br />11 In buildings that have no more than two floors and a roof.
<br />1.2. When interior basement and Foundation waRs are provided at intervals not exceeding 50 feet,
<br />2. In addition to the provisions of this chapter, the clesiqn and construction of Foundations in areas
<br />prone to flooding shall, meet the provisions of Section -R323.
<br />3. Buildings and structures Located within the High-VeLocity Hurricane Zone shalt comply with the
<br />provisions of Chapter 44
<br />R401.2 Requirements,
<br />Foundation construction shot[ be capalo(e -oi2' accommoclatiny aR loads according to Section R301 and of
<br />transmit the resulting loads to the supporting soil, F . I soils that support footings and foundations
<br />ting gned, installed and tested in accordance with accepted engineering practice, Gravel Fill, used as
<br />shall be clesi
<br />Footings For wood and precast concrete foundations shall comply with Section R403
<br />R401.3 Drainage,
<br />Surface drainagte, shot[ be diverted to a storm sewer conveyance or other ap ol nt of collection so
<br />rea prove poi
<br />as to not c a hazard, Lots shall be graded so as to drain surface water away from foundation watts,
<br />The grade away From Foundation watts shall -Poll a minimum of 6 inches (152 mm) within the 42'irst
<br />10 feet (3048 mm).
<br />Exception: Where Lot Lines, walLs, slopes or other h sical, loarriers prohibit 6 inches (152 mm> of Poll within
<br />10 feet (3048 mm), drains or swales shall be provicleY to ensure ensure drainage away from the structure.
<br />R401.4 Soil tests.
<br />In areas likely to have ex comlpr�essiloile, shifting or other unknown soil characteristics, the building
<br />pansive, 0i
<br />official shaR bletermine whether to require a s t test to determine the soit?s characteris tics at a particular
<br />Location. This test shall be made by an approved agency using an approved method,
<br />R401.4.1 Geotechnical evaluation.
<br />In tieu of a complete geotechnical evaluation, the Iccid-bearing values in Table R401.4.1 shall be assumed.
<br />TABLE R401.4.1
<br />PRESUMPTIVE LOAD -BEARING VALUES OF
<br />FOUNDATION MATERIALS o, LOAD -BEARING PRESSURE
<br />CLASS OF MATERIAL
<br />(pounds per square foot) 12,000
<br />Crystalline loedrock 4,000
<br />Sedimentary and foliated rock 3,000
<br />Sandy gravel and/or gravel (GW and 6P)
<br />Sand, silty sand, clayey sand, silty gravel and clayey gravel 2,000
<br />(SW, SP, SM, SC, GM and GC)
<br />Clay, sandy clay, silty clay, clayey silt, sitt and sandy sitt
<br />(CI, ML, MH and CH) 1,500 b
<br />For SI: 1 pound per squaref'oot = 0,0479 kN/m 2.
<br />a, When soil tests are required loy Section R401,4 , the al(owalo(e bearing capacities of the soil shatt be part
<br />of the recommendations.
<br />lo. Where the buildinp official cletermiresath� soits with an allowable bearin of Less than
<br />sf qre �i. ely -place
<br />to be present t ht insite, the a(lowalote bearing Capac,t y h Q�t to e
<br />1, 5,� 0 e c P'c' Lterini,ecl loy a
<br />soi s Prnves i9a ion.
<br />R401.5 Compressible or shifting sol.
<br />When top- or subsoils are compressible or shifting, such soils shall be removed to a depth and width
<br />sufficient to assure stable mo sture content in each active zone and shcL(t not be used as fill or stabilized
<br />within each active zone loy chemical, dewatering, or presaturation,
<br />SECTION R403
<br />FOOTINGS
<br />R403.1 General.
<br />AIL exterior watts shot[ be supported on �ontln Lid or FyL��,ryrciuted masonry or concrete Footinos, wood foundations,
<br />S�o
<br />�roother Q aii��s so I al
<br />t pproved structural systrms w ich qe OF sufFici esln to accommodotp at[ Loads ac!-cording to Section
<br />3 1 and 0 transmit the resulting oacls to the soit within the imitation as determined from the character of the solL.
<br />Footings shall, be supported on undisturbed natural soils or engineered -Pit[,
<br />R403.1.1 Minimum size.
<br />Minimum sizes for concrete and masonry footin s shot[ be as set Forth in TQbte R403,1 and Figure R403,1(1). The footing width,
<br />W, shall be ased on the Load- earin value op the soil in accorclance with Table �401.41 Spr eac footings shall, be at (east
<br />� mm) in thickness. �ootln2 projections, P, shot[ be at Least 2 inches ( I mm) and shall not tsxceecl the thickness
<br />of the footing, The size OF footings supporting piers and columns shatt be based on the tributary load and alIowaloLe soil,
<br />in accordan e with Table R4Q1.4.I. Footinqs for wood foundations shalt loe in accordance with the details set forth in
<br />Section R405.2, and Figures K,403.1(2) and R403,1(3).
<br />R403.1.4 Minimum depth.
<br />ALI exterior Footings shall loe placed at Least 12 inches (305 Min) below the undisturbed ground surface,
<br />TA03.1.5 Slope.
<br />e 1;o of footin s shffLL be Levet. The bptt?m surfatiie of footinaswighaLL not have a slopT exceeding �ne Lunit
<br />c,T surSace eppe ere it is necessary a change e evation
<br />verti n units horizonya( (1 -percent slope), oo ings sha be st t e
<br />of the top surface of the footings or where the slope of the bottom surface of the footings will exceed one unit
<br />vertical in ten units horizontal (10-percent slope).
<br />R40316 Foundation anchorage.
<br />When braced wall panels are supported directly on continuous Foundations, the wall wood sill plate or co(ol-Formed steel
<br />loottom track shaLL be anchored to the foundation in accordance with this section,
<br />The wood sole plate at exterior walts I'thi stabs and wQod sill plate shall, be anchored to the foundation with
<br />Ut M(009, "-) on cent�?r. I here shatt be a minimum of two bolts pi�r plate section with
<br />anch2r, bolts S ced a max �m of 6 feE I
<br />one o t locate'd"not morelptl or) 12 inches (30 mm) or Less -char) seven bolt cliameters from each end o the plate section,
<br />Bolts shall be at least 11� inch (12.7 mm) in diameter and shiallt extend a minimum of 7 inches (178 mm) into masonry or
<br />concrete. interior bearin
<br />,&wall sole ptates or) monolithic stalo Foundations shQU be positively anchored with approved
<br />Fasteners. A nut and w er sha(l be tiphtened �n each boV to the plate. Siks and sole pLotes shQ(( be protected Qgclnst
<br />, 1 0. Formed stel Frnmin2 s
<br />decysi�ncl,tqrmltes where required by S ction�OR 19 and R3 Cold s shaR be Fastened to the
<br />woo t p a es or anchored directly to the unclation as required in Section 505. .1 r W5.MLL
<br />Exntlon:
<br />Foun ation anchor straps, spaced as required to provide equivalent anchorage to X-inch-cliameter (12.7 MM) anchor bolts.
<br />R40317 Footings on or adjacent to slopes.
<br />The placement of bui[clin s and structures an or ad acent to sLogs steeper than 1 unit vertical in 3 units horizontal
<br />(33.3-percent slope) sha% conform to Sections R403.6.1 through 4031.7.4.
<br />R403.1.7.1 Building clearances from ascending slopes. icient distance from the s 10 e to provide _protection from slope
<br />n gen er a I ' buil d ' s be' Ow s to e s shot b e - set a 5 u ff' 1cled in Section R40317.4 anx Figure R403.1.7.1, the Following criteria
<br />r ov
<br />n e e nonal ha Fa e s E c e t as p the
<br />d s ec Where
<br />d a a ros on s "Ow P " ur x p
<br />b " umed e t In ro 0 n.
<br />c n s e e 'F p t h e - tape h. (I be as
<br />r ov
<br />w 'r' g r s t l to pt h to e existing slope is steeper than one unit vertical in one unit horizontal,
<br />e e F 6 n a 6 a I - re draw n t.rgen t to sumed to Ice at the intersection of a horizontal plane drawn From the
<br />th a -p �i a s rs p t d t the t. e - F
<br />10 o p e u the slope at or) angle of 45 degrees (0.79 rod) to the horizontat.
<br />of
<br />Wtop e a w I c tr -C e the slope, the height of the slope shall be measured from the top
<br />he _. I I to in R e t -p OF the s ('p e
<br />1 2 .tn c in g I s rf
<br />R 03 7 F et k 6 e e 6 s e - aces.
<br />s ba m s -F e O� - [I b e f
<br />c f '
<br />F t,_gs on or g d jac en t to Lope ur c s Founded in material with an embedment and setloack from the slope
<br />F , ff, t r t , I r
<br />survp e su cien t o provi e ve coL I an 6 (OxL t eroL I support for the footing without Oetrimertal. settlement, Except as
<br />p 6 6 4 u r
<br />rovi e for in Section R40 .1. 7.4 n d Fi e R403.1.7.1, he fottowin tio R is deemed adequate to meet the criteria. Where
<br />an
<br />t , t r
<br />Pthe slope is steeper than One uni verVicral in one unit horizonta? (160 'crce'nt. slope), the required setback shail, be
<br />1-fe
<br />measured from an im nor plane 45 degrees (0.79 rad) to the horizon (111., projected upward from the toe of the slope,
<br />cl�lerva&n,
<br />R403.1.7.3 Foundation I
<br />On qrQclecl sites, the top of any exterior Foundation shalt extend above the etevation of the street cutter at point or
<br />disc , harge or the inlet of an approved drainage device a minimum of 12 inches (305 mm) plus 2 percent. . Alternate elevations
<br />are permittFd su%ect to the approval, of theubuitoling, official, provided it ct4,n be demonstrated that required drainage to
<br />the point o disc arge and away from the str cture s provided at all loc a ons on the site,
<br />R40317.4 ALternate setback and clearances.
<br />Alternate setbacks and clearances are permitted, subject to the approval of the building official. The building official is
<br />permitted to . testiqation and recommendation of a i
<br />require an,en, qualified engineer to clemonstrate that the ntent of this
<br />section has Ioeen sat sf al. Such an investigation shall include consideration of material, height of slope, slope gradient,
<br />Load intensity and erosion cha,racteristics of slope materiat.
<br />R40318 Foundations on expansive soils.
<br />Founcliation and floor slabs for buildings Located on expansive soils shcLI[ be designed in accordance with Section 1805.8
<br />of the Florida Bui[cling Code, Building.
<br />Exception: SLab-on-grounol and other foundation systems which have performed adequately in soil conditions similar to those
<br />encountered at the building site ore permitted suloject to the approval of the oullcling official.
<br />R403.1.8.1 Expansive soils cl[assiFictations.
<br />Foils melr@ it( Four OF the f oLIoA1*d ppvi�selonp shot( be qonc?iOerecl expansive, exot that tests to show compliance with
<br />tems 1, n 3 shot[ not be requi t e st prescribed in Item 4 is conduc e
<br />1. Plasticity Index (PI) of 15 or greater, determined in accordance with ASTM D 4318,
<br />2, More than 10 percent of the 5 oil partic I es pass a No, 200 sieve (75 mm), determined in accordance with ASTM D 422.
<br />3, More than 10 percent of the soil particles are Less than 5 micrometers in size, determined in accordance with ASTM D 422.
<br />4. Expansion index greater than 20, determined in accordance with ASTM D 4829.
<br />R403.2 Footings for wood foundations.
<br />Footings for wood foundations shalt be in acco-dance with Figures R403.1(2) and R403.1(3). Grove[ shall be washed and well
<br />Rrode The maximum size stone shaIl not excee� ? inch (19.1 mm>. Gravel shall be Free from organic, clayey or silty soits
<br />and shalt be coarle, not smaller than 1/16-inch (1.6 mm) grains and shalt be Free Prom organic, clayey or sitty soils,
<br />shed stone shat ave a maximum size OF % inch (12.7 m
<br />R40415 Foundation wait thickness based or) walls supported,
<br />The thickness of concrete ancl masonry fourcliation walts shot[ not be Less than the thickness of the watt supported, except
<br />that foundation watts of at Least 8-inch (203 Min) rominal, thickness sha(l be permitted under brick-veneereol Frame watts and
<br />under 10-inch-wicle (254 mm) cavity watts where the total height of the watt supported, including gables, is not more than
<br />20 feet (6096 mm), provided the requirements of Sections R404.1.1 and R40412 ore met.
<br />R404151 Pier and curtain wall foundations.
<br />Pier and curtain wall founclations sha(L be permitted to be used to support light -frame construction not more than two
<br />stories in height, provided the Following requirements are Met:
<br />i. ALI Load -bearing watts shall be placed on continuous concrete footin s placed Integrally witin the exterior wall footings,
<br />2. The minimum actual thickness of a Ioad-bearinq masonry wall shatt beg not Less than 4 inches (102 mm) nominal or
<br />33/8 inches (92 mm) actual thickness, and shall be boncled integriatty with piers spaced in accordance with Section R606.8.
<br />3. Piers shatt. be constructed in accordance with Section R606.5 and Section R606,5.1, and shot( be corded into the
<br />Load -bearing masonry wall, in accordance with Section R608.1.1 or Section R608.1.1.2.
<br />4. The maximum height of Q 4-inch (102 mm) (oad-bearing masonry Foundiation wQ[( supporting wood Framed walls and Floors
<br />shall not be more than 4 feet (1219 mm) in height.
<br />5. Anchora
<br />bu,t.11r,g be 1, accordance with R40316, Figure R40415(l), or as speciFiecl loy engineered design accepted by the
<br />iciaL.
<br />6. The unbalanced fill for 4-inch (102 mm) foundation watts shall not exceed 24 inches (610 mm) for solicl masonry or
<br />12 inches (305 mm) for hoRow masonry.
<br />7. Reserved.
<br />R404.4.6 Reinforcing steel.
<br />R404.4.6.1 Ger)erQI,
<br />Reinforcing steel shall meet the requirements of ASTM A 615, A 706 or A 996. The minimum yield strength of reinforcing steel
<br />�ho,R bF 4D,000 psi (Gracle 4�), L(�7 11cai, an�th.ri,o,tal wall E?irforcrments shall �e pta� closer to the ou�tside
<br />IMP a), V �r
<br />a e wall t ic ness. eel reinforcement for ounclat have concrete cover in
<br />ace 3a theww I s shaL rd no
<br />accor nce t�l A�?,qlg.,e
<br />Exception: Where insulated concrete forms are used and the form remains in place as cover For the concrete, the minimum
<br />concrete cover For the reinforcing steel is permitted to be reduced to ? inch (19.1 mm).
<br />R404,4,6.2 Horizontal reinforcement.
<br />When vertical reinforcement is required, ICF founclation walls shall have horizontal reinforcement in accordance with this
<br />section. ICF foundation watts up to 8 feet (2438 mm) in height shaLL have a minimum OF one continuous No. 4 horizontal
<br />reinforcing bar p1cced at 48 inches (1219 mm) on center, with one loar Located within 12 inches (305 mm) of the top OF the
<br />wall story, ICF Foundation walls qreater thar 8 feet (2438 mm) in heiqht shal( have a minimum OF one continuous No, 4
<br />horizontal reinforcing bar ptaced' at 36 inches (914 mm) on center witTi one bar located within 12 inches (305 mm) of the
<br />top of the watt story.
<br />R404.4.6.3 WaLL openings.
<br />Vertical wall reinforcement required by Section R404.4,2, R404,4,3 or R404.4.4 that is interrupted loy wall openings shalt have
<br />additional vertical reinforcement of the same size placed within 12 inches (305 mm) of each side OF the opening,
<br />R406,3.2 Below gracle moisture barrier.
<br />A 6-mi(-thick (0.15 mm) polyethylene film shcAl be applied over the beLiaw-grade ortion of exterior foundation watts prior to
<br />biackfit[ing. Joints in the polyethylene film shal.l. be tapped 6 inches (152 mm) a n 9 sealed with adhesive. The top edge of the
<br />polyethylene film shall be boncled to the sheathing to Form Q seat. Film areas at gracle level shot( be protected From
<br />mechanical clamage and exposure loy a pressure preservativety treated tumber or plywood strip attached to the wall several
<br />inches above finish gra�s Level Qri� extenclinR ?pproximatetv 5 inches (229 mm) kM?Iow grade. The joint between the strip and
<br />the wall shalt be cauLke full Leng h prior t astening the strip to the wall, ther coverings appropriate to the
<br />architectural treatment may also be used. The potyethyLene Film shot[ extend clown to the loottom of the wood Footing plate
<br />but shall not overlap or extend into the grQVeL or crushed stone footing.
<br />SECTION R408
<br />UNDER -FLOOR SPACE
<br />R40e.1 Ventilation.
<br />The under-ftoor space between the loottom of the floor joists and the earth under any building (except space occupied
<br />by a basement or cellar) shall besgrovided with ventilation openings through foundation watts ortexterior wa(ls. The minimum
<br />net area of ventilation ope nn all, not be Less than I square foot for each 150 square fee (0.67 m2 for each 100 m2)
<br />of uncler-FLoor space area. Orgessuch ventilating opening sha(1, be within 3 feet (914 mm) of each corner of said building,
<br />R408.2 Openings for uncler-filoor ventitiation.
<br />The minimum net area OF ventilation oRenings shot( not be Less than I square Foot (0,0929 m2) For each 150 square Feet
<br />(100 m2) of uncler-fLoor space area. une such ventilating 0 g shall loe within 3 feet �914 mm) of each corner of the
<br />building. Ventilation openings shati, be covered Fair their heF tin and width with any of the Following materials provided that
<br />the Least dimension of the covering shQIL not exceed X in, F 4 mm):
<br />1. Perforated sheet Metal plates not Less than 0.070 inch (1.8 mm) thick.
<br />2. Expanded sheet Metal plates not Less than 0.047 inch (12 mm) thick.
<br />3. Cost iron grills or grating.
<br />4. Extruded to ad-bearim brick vents.mm)
<br />5. Hardware cloth of 0. 5 inch (0.89 wire or heavier.
<br />6. Corrosion -resistant wire mesh, with the least dimension being 1/8 inch (3.2 mm).
<br />Exceptions:
<br />1. Where warranted by climatic conditions, ventilation openings to the outdoors are not required if ventilation openings
<br />to the interior are provided.
<br />2. The total area of ventilation openings may be reduced to 1/1500 of the under-ftoor area where the ground surface is
<br />treated with on approved vapor retarder material and the required openings are placed so as to provicle cross -ventilation
<br />of the space. The installation of operable Louvers shaLl not be prohibited,
<br />3. Under-PLoor spaces used as supply plenums For distribution of heated and cooled air shalt comply with the
<br />requirements of Section M1601.9.
<br />4. Ventilation openings are not required where continuously operated mechanical ventilation is provided at a rate of 1.0 cfm
<br />(10 m2) for each 50 square feet �1.02 L/s) of uncler-fIcor space floor area and ground surface is covered with an
<br />approved vapor retarder materiat.
<br />5. Ventilation openings are not required when the ground surface is covered with an approved v apor retarder material, the
<br />space is supplied with conditioned air and the perimeter walls are insulated to R-5 for *North Florida, R-4 for Central
<br />F1, riclia and R-0 for South F(orIcIQ.
<br />R408.3 Access.
<br />Access shalt be provided to all under-PIoor spaces. Access openings through the Floor shall be a minimum OF 18 inches by
<br />24 inches (457 mm loy 610 mm). Openings through a perimeter wall shot( be 16 inches by 24 inches (407 mm by 610 mm), When any
<br />portion of the through wcLII access is below gracle, an areaway of not less than 16 inches by 24 inches (407 mm by 610 mm)
<br />shot, be prov' ded. The bottom of the areaway shalL Ice below the threshold of the access open In Through wall access
<br />openings hall not be Located under a door to the residence. See M130514 for access requiremen�s where mechanical
<br />equipment is Located under Floors.
<br />SECTION 1911
<br />MINIMUM SLAB PROVISIONS
<br />1911A General.
<br />The thickness of concrete floor slobs supported directly on the ground shall not be less than 31/2 inches (89 mm).
<br />A 6-mit 10.006 inch (152 mm)] polyethylene vapor retarder with joints Lapped not less than 6 inches (152 mm) shot( loe placed
<br />between the base course or subgrade and the concrete floor stab , or other approved equivalent methods or materials shall, be
<br />used to retard vapor transmission through the Floor slab,
<br />Exception: A vapor retarder is not required:
<br />1, For detached structures accessory to occupancies in Group R-3 as applicable in Section 101,2, such as garages, utility
<br />buildings or other unheated facitities.
<br />2. For unheated storaqe rooms having an area of Less than 70 square feet (6,5 m2) and cQrports attached to occupancies
<br />in Group R-3 as QppT!calo[e in Section 101.2.
<br />3. For buildings of other occupancies where migration of moisture through the slab from below will not be detrimental to
<br />the intended occupancy of the buiLding.
<br />4. For driveways, walks, patios and other fLatwork which will, not be enclosed at 0, Later date.
<br />5. Where approved based on local site conditions.
<br />1911.2 Joints,
<br />Concrete stiabs on ground shQU Ice provided with joints in accordance with ACI 224.3R or other Qpprovecl methods. Joints shaR
<br />be designed by or) architect or engineer.
<br />Exception: Joints are not re ired in unreinforcecl plain concrete stabs on ground or in stabs for one- and two-family
<br />dwellings complying with one OT the following:
<br />1. Concrete stabs on ground containing synthetic Fiber reinPorcement, Fiber Lengths and dosage amounts sho(I comply with
<br />one of the following
<br />(1) Fiber Lengths shall be 112 inch to 2 inches (13 to 51 mm) in Length. Dosage amounts shall be From 0,75 to 1.5 pounds per
<br />cubic ard (0.45 to 0.89 kg/r)3) in accordance with the manufacturer?s recommendations. Synthetic fibers shot[ comply with
<br />ASTM � 1116. The manufacturer or supplier shot[ provide certification of comptiance with ASTM C 1116 when requesteolloy the
<br />buitcling oPPIcicti or,
<br />(2) Fiber tenyth shot[ be Prom 112 inch to 2 inches (13 mm to 51 mm) in IenQth, monoPi[ament or Fibrittated. Dosage amounts shaR
<br />be From 0.5 a 1.5 pounds per culoic yard (0,30 to 0.89 kg/m3) to achieve minimum 40 percent reduction of plastic shrinkage
<br />cracking of concrete versus a control mix in accordance with ICBO AC32, Independent test results using Minimum six (6) test
<br />specimens shatL be provided to the bulding official showing compliance with ICBD A32, Synthetic Fiber shatt comply with ASTM C1116,
<br />Paragraph 4.1.3, T�ipe III. The manufacturer or supplier shall provide certification of compliance with ASTM C1116 when requested
<br />by bui(cling of Ficia ..
<br />2. Concrete slobs on, ��'ouncl containin� 6x6 W1A ? W1.4 welded wire reinforcement fabric Located in the middle to the upper
<br />one-third of the slob e(ded wire reir orcement fabric shall, loe supported with approved materials or supports at spacings
<br />to exceed 3 feet (9L4 mm) or in accordance with the manufacturer?s speci Pica t lons. Welded plain wire reinPorcement Fabric For
<br />concrete shaLL conform to ASTM A 185, Standard Specification for Steel Welded Wire Reinforcement Fabric, Plain, for
<br />Concrete Reinforcement.
<br />MICHAEL & ROBYN KIRK
<br />DESIGN PLANS BY RICK
<br />6423 SILVER OAKS DR
<br />813- 765-9793
<br />ZEPHYRHILLS, FL 33542
<br />D.W.SMITH, P.E.
<br />SHEET OF
<br />FLORIDA PROFESSIONAL ENGINEER LICENSE NUMBER 53608
<br />PROJECTS ENGINEERING CONSULTANT
<br />STANDARD NOTES
<br />-
<br />7 [IF 9
<br />SCALE
<br />DATE
<br />JOB NO.
<br />9909 WALLASTON DRIVE-DADE CITY,FLORIDA 33525
<br />PHONE:352-521-0865 FAX:352-521-0867 E-MAIL: dwsf[pe@earthlink.net
<br />1 /4"= 1'-0"
<br />15 APR 2008
<br />ENGINEER LICENCE #53608
<br />I hereby certiFy that I have reviewed this plan andfound it to
<br />be in comptiQnce with ASCE 7-02 and the Florida Buitoling Code 2004.
<br />with the 2006 Supiptement to FBC 04.
<br />DESIGN/DRAWN
<br />R. GOLLHARDT
<br />CHECKED
<br />D.W.SMITH,P.E.
<br />2008-1
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