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<br />0613.3 Exterior windows, sliding and patio glass doors.
<br />R613.3.1 Testing and labeling. Exterior windows and glass doors shall be tested by an approved independent testing laboratory, and shall be labeled to
<br />indicate compliance with the requirements of one of the following specifications:
<br />ANSI/AAMAMWWDA101/I.S.2 or ANSI/AAMA/WDMA 101/I.S.2MAFS or AAMA/WDMA/CSA 101/I.S.2/A440 or TAS 202 (HVHZ shall comply with TAS 202 utilizing ASTM E 1300-98
<br />or ASTM E 1300-04 02).
<br />Exterior windows and sliding glass doors shall be labeled with a permanent label, marking, or etching providing traceability to the manufacturer and product.
<br />The following shall also be required either on a permanent label or on a temporary supplemental label applied by the manufacturer: information identifying
<br />the manufacturer, the product model/series number, positive and negative design pressure rating, product maximum size, glazing thickness, impact -resistance
<br />rating if applicable, Florida Product Approval number or Miami -Dade Product Approval number, applicable test standard(s), and approved product certification
<br />agency, testing laboratory, evaluation entity or Miami -Dade Product Approval.
<br />The labels are limited to one design pressure rating per reference standard. The temporary supplemental label shall remain on the window or door until final
<br />approval by the building official.
<br />Exceptions:
<br />1. Door assemblies installed in nonhabitable areas where the door assembly and area are designed to accept water infiltration need not be tested for water
<br />infiltration.
<br />2. Door assemblies installed where the overhang (OH) ratio is equal to or more than 1 need not be tested for water infiltration. The overhang ratio shall be
<br />calculated by the following equation:
<br />OH ratio = OH length/OH height
<br />Where:
<br />OH length = The horizontal measure of how for an overhang over a door projects out from door's surface.
<br />OH height = The vertical measure of the distance from the door's sill to the bottom of the overhang over a door.
<br />3. Pass -through windows for serving from a single-family kitchen, where protected by a roof overhang of 5 feet (1.5 m) or more shall be exempted from the
<br />requirements of the water infiltration test.
<br />4. Decorative glazed openings.
<br />Glass Strength: Products tested and labeled as conforming to ANSI/AAMA/NWWDA 101/I.S.2 or ANSI/AAMA/WDMA 101/I.S.2MAFS or AAMA/WDMA/CSA 101/I.S.2/A440 or
<br />TAS 202 shall not be subject to the requirements of the Florida Building Code, Building. Determination of load resistance of glass for specific loads of
<br />products not tested and certified in accordance with Section R613.3.1 shall be designed and labeled to comply with ASTM E 1300. The temporary supplemental
<br />label shall designate the type and thickness of glass or glazing material.
<br />Glass Strength: Products tested and labeled as conforming to ANSI/AAMA/NWWDA 101/I-S.2 or 101/I. S. 2/NAFS or AAMA/WDMA/CSA 101/I.S.2/A440 or TAS 202 shall not
<br />be subject to the requirements of the Florida Building Code, Building. Determination of load resistance of glass for specific loads of products not tested
<br />and certified in accordance with Section R613.3.1 shall be designed and labeled to comply with ASTM E 1300. The supplemental label shall designate the type
<br />and thickness of glass or glazing material.
<br />R308.6.9 Testing and labeling of skylights. Exterior skylights shall be tested by an approved independent testing laboratory, and shall be labeled to
<br />indicate compliance with the requirements of one of the following specification:
<br />ANSI/AAMA/WDMA 101/I.S.2/NAFS or AAMA/WDMA/CSA 101/I.S.2/A440, or TAS 202 (HVHZ shall comply with TAS 202).
<br />Exterior skylights shall be labeled with a permanent label, marking, or etching providing traceability to the manufacturer and product. The following shall
<br />also be required either on a permanent label or on a temporary supplemental label applied by the manufacturer: information identifying the manufacturer, the
<br />product model/series number, positive and negative design pressure rating, product maximum size, type and thickness of glass or glazing material,
<br />impact -resistance rating if applicable, Florida Product Approval number or Miami -Dade Product Approval number, applicable test standard(s), and approved
<br />product certification agency, testing laboratory, evaluation entity or Miami -Dade Product Approval.
<br />Labels are limited to one design pressure rating per reference standard. The temporary supplemental label shall remain on the skylight until final approval
<br />by the building official.
<br />2"A2" BEAM
<br />TOP PLATE
<br />U PINE
<br />�, I I BEAM POCKET Drzmr,41
<br />PLYWD SHEATHING AND SIDING
<br />2xro END STUD
<br />2xro END STUD
<br />(CONVENTION CORNER)
<br />R613.3.2 Comparative Analysis Label. A temporary supplemental label conforming to AAMA 203, Procedural Guide for the Window Inspection and Notification
<br />System, shall be acceptable for establishing and communicating the calculated allowable design pressures higher than indicated on the label required by
<br />Section R613.3.1 for window or door sizes smaller than that required by the ANSI/AAMA/NWWDA 101/I.S.2 or ANSI/AAMA/WDMA 101/I.S.2/NAFS or AAMA/WDMA/CSA
<br />101/I.S.2/A440 test requirements. This temporary supplemental label shall be applied by the manufacturer and remain on the window or door until final ( PRE -IN CJ' ULATE VOID
<br />approval by the building official.
<br />Exception 1:
<br />Comparative analysis of operative windows and glazed doors may be made, provided the proposed unit complies with the following:
<br />2x& GYP. BD. BACKER
<br />PLYWD SHEATHING AND SIDING
<br />BACKING FOR EXT. SIDING 4 TRIM
<br />1. Shall always be compared with a tested and currently approved unit. 0 1' � STUD
<br />�O�� II��� ����I
<br />2 Varies onlY9in width het ht and/or load re uirements
<br />- q -
<br />3. Shall not exceed 100 percent of the proportional deflection for fiber stress of the intermediate members of the approved unit.
<br />4. Shall conform as to extruded members, reinforcement and in all other ways with the tested approved unit.
<br />Frame Wall
<br />5. Shall not exceed 100 percent of the concentrated load at the juncture of the intermediate members and the frame of the approved unit.
<br />6. Shall not permit more air and water infiltration than the approved unit based on the height above grade.
<br />7. Compared unit shall not exceed the maximum cyclic pressure when tested per TAS 203 or ASTM E 1886 and ASTM E 1996.
<br />WINDOW t DOOR FASTENINCs
<br />Exception 2:
<br />2011 Florida Building Code NOTES
<br />Comparative analysis of fixed glass windows may be made, provided the proposed unit complies with the following:
<br />= L ALL EXTERIOR WINDOWS AND (SLASS DOORS SHALL
<br />1. Shall always be compared with a tested and currently approved unit.
<br />0
<br />BE TESTED IN ACCORDANCE WITH ANSI/AMMA/NUVA
<br />101/152 STANDARD AND BEAR AN AMIMA OR WOMA
<br />2. Varies only in width, height and/or load requirements.
<br />Z
<br />LABEL INDICATINIG, MANUFACTURERS PERFORMANCE AND
<br />APPROVED PRNCs PRODUCT TESTIENTITY, IN ACCORDANCE
<br />3. The design is identical in all respects. e. g. , extrusions, glazing system, joinery, fasteners, etc.
<br />WITH 2O11 Florida Building Code, SECTION 11014.21.
<br />4. Shall not permit more air and water infiltration than the approved unit based on height above grade.
<br />2. ALL EXTERIOR DOORS AND WINDOWS, SHALL BE
<br />ANCHORED IN ACCORDANCE WITH MANUFACTURERS
<br />5- The maximum uniform load distribution (ULD) of any side is equal to the uniform load carried by the side divided by the length of the side.
<br />SPECIFICATIONS, IN ACCORDANCE WITH 2011 FLORIDA
<br />BUILDING CODE 1101.41
<br />6. The ULD of any member must not exceed the ULD of the corresponding member of the tested window.
<br />SILL
<br />7. The uniform load distribution on each member shall be calculated in accordance to Section 2, Engineering Design Rules, of the AAMA 103.3 Procedural
<br />3. AND DOOFASTENED TO BUCK STRIPS
<br />Guide.
<br />R O. WIDTH
<br />LESSSS THAN 11/2" SHALL BE ANCHORED THROUGH
<br />i
<br />THE JAME TO THE STRUCTURAL SUBSTRATE, IN
<br />8. Compared unit shall not exceed the maximum cyclic pressure when tested per TAS 203 or ASTM E 1886 and ASTM E 1996.
<br />1/
<br />ACCORDANCE WITH 2O11 Florida Building Code. r101.4.42
<br />R613.4 Exterior door assemblies. Exterior door assemblies not covered by Sections R613.3 or R613.4.3 shall comply with Sections R613.4.1 or R613.4.2.
<br />4. WINDOW AND DOOR MULLION ASSEMBLIESSMALL BE
<br />DESKsNED AND TESTED TO TRANSFER I5 TIMES THE
<br />R613.4.1 Exterior door asshall be tested for structural integrity in accordance with ASTM E 330 Procedure A at a load of 1.5 times the required
<br />INDICATED DESIGN LOADS, TO THE STRUCTURAL SUBSTRATE
<br />design pressure load. The load shall be sustained for 10 seconds with no permanent deformation of any main frame or panel member in excess of 0.4 percent of
<br />IN ACCORDANCE WITH, 2011 Florida Building Code
<br />its span after the load is removed. HVHZ shall comply with TAS 202. After each specified loading, there shall be no glass breakage, permanent damage to
<br />1101.45.1 AND 1101.45.4.
<br />fasteners, hardware ports, or any other damage which causes the door to be inoperable.
<br />The minimum test sizes and minimum design pressures shall be as indicated in Table R613.4 _UNIT DIMENSION
<br />The unit size tested shall qualify all units smaller in width and/or height of the same operation type and be limited to cases where frame, panels and ' WIDTH
<br />structural members maintain the some profile as tested. JAMB
<br />R613.4.2 Sectional garage doors shall be tested for determination of structural performance under uniform static air pressure difference in accordance with
<br />ANSI/DASMA 108 or TAS 202 (HVHZ shall comply with TAS 202).
<br />R613.4.3 Custom doors. Custom (one of a kind) exterior door assemblies shall be tested by an approved testing laboratory or be engineered in accordance with
<br />accepted engineering practices.
<br />R613.4-4 Door components evaluated by an approved product evaluation entity, certification agency, testing laboratory or engineer may be interchangeable in NITS)
<br />exterior door assemblies provided that the door component( s) provide equal or greater structural performance as demonstrated by accepted engineering AG (
<br />practices.
<br />R613.4.4.1 Optional exterior door component testing. With the exception of HVHZ, exterior side -hinged door assemblies not covered by Section R613.3 shall
<br />have the option to have the components of the assembly tested and rated for structural integrity in accordance with the following specification:
<br />SDI A250.13
<br />ATTACHMENT OF
<br />WINDOW TO FRAME
<br />WALL TO SE PER
<br />MANUFACTURERS
<br />RECOMMENDATION.
<br />ALL WIDT
<br />= .1
<br />Following the structural after
<br />or exterior aver components, m ere snail oe no permanent shall
<br />no
<br />or any perimeter anent or panet mfaste to excess or � INDOW / DOOR
<br />ANCHOR
<br />0.4 percent of its span after the load is removed. After each specified loading, there shall be no glass breakage, permanent damage to fasteners, hardware 0 N.T.S.
<br />parts, or any other damage that causes the door to be inoperable, as applicable.
<br />R613.4.5 Garage door labeling. Garage doors shall be labeled with a permanent label provided by the manufacturer. The label shall identify the manufacturer,
<br />the garage door model/series number, the positive and negative design pressure rating, indicate impact rated if applicable, the installation instruction
<br />drawing reference number, the Florida Product Approval or Miami -Dade Product Approval number if applicable, and the applicable test standards.
<br />The required garage door components for an approved garage door assembly may be indicated using a checklist format on the label. If a checklist format is
<br />used on the label, the installer or manufacturer shall mark the selected components on the checklist that are required to assemble an approved garage door
<br />system.
<br />The installation instructions shall be provided and available on the job site.
<br />- - - - - - - -
<br />R613.5 Wind-borne debris protection. Protection of exterior windows, glass doors and other glazed areas shall be in accordance with Section R301.2.1.2.
<br />R613.5. 1 Fenestration testing and labeling. Reserved.
<br />SIMPSON 5P2 e EA_ STUD
<br />R613.6 Anchorage methods.
<br />R613-6.1 Anchoring requirements. Window and door assembly anchoring systems shall be tested to achieve the design pressure specified- Substitute anchoring
<br />systems shall provide equal or greater anchoring performance as demonstrated by accepted engineering practice. When provided, the manufacturer's published
<br />installation instructions for as tested or substitute anchoring systems can be used. In no case shall the anchorage exceed the spacing for the tested rated
<br />(3) SPACED
<br />performance.
<br />EVENLY l- VE RT.
<br />p�
<br />TAPCON CONCRETE 5CRE WS. A
<br />R613.6.1.1 Masonry, concrete or other structural substrate. Where the wood shim or buck thickness is less than 11/2 inches (38 mm), window and door
<br />assemblies shall be anchored through the main frame or by jamb clip or subframe system, in accordance with the manufacturers published installation
<br />MINIMUM OF 1" AND A MAXIMUM
<br />instructions. Anchors shall be securely fastened directly into the masonry, concrete or other structural substrate material. Unless otherwise tested, bucks
<br />shall extend beyond the interior face of the window or door frame such that full support of the frame is provided- Shims shall be made from materials capable
<br />OF 1-3/4" EMBEDMENT.
<br />of sustaining applicable loads, located and applied in a thickness capable of sustaining applicable loads. Anchors shall be provided to transfer load from
<br />the window or door frame to the rough opening substrate.
<br />Where the wood buck thickness is 11/2 inches (38 mm) or greater, the buck shall be securely fastened to transfer load to the masonry, concrete or other
<br />l. structurasubstrate and the buck shall extend beyond the interior face of the window or door frame. Window and door assemblies shall be anchored through the
<br />main frame or by jamb clip or subframe system or through the flange to the secured wood buck in accordance with the manufacturers published installation
<br />instructions. Unless otherwise tested, bucks shall extend beyond the interior face of the window or door frame such that full support of the frame is
<br />provided. Shims shall be made from materials capable of sustaining applicable loads, located and applied in a thickness capable of sustaining applicable
<br />loads. Anchors shall be provided to transfer load from the window or door frame assembly to the secured wood buck.
<br />R613.6.1.2 Wood or other approved framing material. Where the framing material is wood or other approved framing material, window and glass door assemblies
<br />2
<br />shall be anchored through the main frame or by jamb clip or subframe system or through the flange in accordance with the manufacturer's published
<br />installation instructions. Shims shall be made from materials capable of sustaining applicable loads, located and applied in a thickness capable of
<br />sustaining applicable loads. Anchors shall be provided to transfer load from the window or door frame to the rough opening substrate.
<br />R613.7 Mullions occurring between individual window and glass door assemblies.
<br />R613.7.1 Mullions. Mullions, other than mullions which are an integral part of a window or glass door assembly tested and labeled in accordance with Section
<br />R613.3.1, shall be tested by an approved testing laboratory in accordance with AAMA 450 or be engineered in accordance with accepted engineering practice.
<br />R613.7.1.1 Engineered mullions. Mullions qualified by accepted engineering practice shall comply with the performance criteria in Sections R613.7.2,
<br />R613.7.3, and R613.7.4.
<br />R613.7.1.2 Mullions tested as stand alone units. Mullions tested as stand alone units in accordance with AAMA 450 shall comply with the performance criteria
<br />in Sections R613.7.2, R613.7.3, and R613.7.4.
<br />R613.7.1-3 Mullions tested in an assembly. Mullions qualified by a test of an entire assembly in accordance with AAMA 450 shall comply with Sections
<br />R613.7.2 and R613.7.4-
<br />R613.7.2 Load transfer. Mullions shall be designed to transfer the design pressure loads applied by the window and door assemblies to the rough opening
<br />substrate.
<br />TABLE R613.4
<br />MINIMUM TEST SIZES, INCLUDING FRAMING
<br />Performance Class* Width x Height (mm)
<br />Width x Height (in.)
<br />Minimum Performance Grade
<br />(Design Pressure)
<br />Residential (R)
<br />900 x 2000
<br />(36 x 79)
<br />720 Pa
<br />(15 psf)
<br />Light Commercial (LC)
<br />900 x 2100
<br />(36 x 83)
<br />1200 Pa
<br />(25 psf)
<br />Commercial (C)
<br />1000 x 2100
<br />(40
<br />x 83)
<br />1440 Pa (30
<br />psf)
<br />Heavy Commercial (HC)
<br />1200 x 2400
<br />(48
<br />x 95)
<br />1920 Pa (40
<br />psf)
<br />Architectural (AW)
<br />1200 x 2400
<br />(48
<br />x 95)
<br />1920 Pa (40
<br />psf)
<br />*Performance Class and Performance Grade per ANSI/AAMA/NWWDA 101/I.S.2-97
<br />R613.7.3 Deflection. Mullions shall be capable of resisting the design pressure loads applied by the window and door assemblies to be supported without
<br />deflecting more than L/175, where L is the span of the mullion in inches.
<br />R613.7.4 Structural safety factor. Mullions shall be capable of resisting a load of 1.5 times the design pressure loads applied by the window and door
<br />assemblies to be supported without exceeding the appropriate material stress levels. If tested by an approved laboratory, the 1.5 times the design pressure
<br />load shall be sustained for 10 seconds, and the permanent deformation shall not exceed 0.4 percent of the mullion span after the 1.5 times design pressure
<br />load is removed.
<br />R613.7.5 Installation instruction for exterior windows and doors. Windows and doors shall be installed in accordance with ASTM E 2112 or in accordance with
<br />the manufacturer's installation instruction.
<br />R613.8 Flashing, sealants and weatherstripping. Flashing and sealants for exterior windows and doors shall comply with Section R703.8.
<br />R613.8.1 All exterior fenestration products shall be sealed at the juncture with the building wall with a sealant complying with AAMA 800 and ASTM C 920
<br />Class 25 Grade NS or greater for proper joint expansion and contraction, ASTM C 1281, AAMA 812, or other approved standard as appropriate for the type of
<br />sealant.
<br />13.8.2 Masonry rough openings. Masonry rough opening dimensions shall be within the tolerances specified at Section R606.12 and in addition shall provide
<br />SIMPSON 61=1 a EA. STUD
<br />" ANCHOR BOLT a 32" MIN.
<br />(MIN. S" EMBEDMENT)
<br />- - -
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<br />SEE ELEVATIONS
<br />FOR ROOF SLOPE
<br />SHINGLES PER SPECIFICATIONS
<br />(w/ & FASTENERS PER SHINGLE) OVER
<br />ROOFING FELT ON 1/2" PLYWOOD OR
<br />OSB W/H-CLIPS ON PRE-ENGINEERED
<br />WOOD TRUSSES a 24"O.C.
<br />(FOR NAILING SCHEDULE SEE SHEET 625)
<br />HURRICANE ANCHORS
<br />(SEE TABLES W/ ROOF PLAN)
<br />ALUM. DRIP EDGE
<br />2Xio SUB FASCIA
<br />MAY VA
<br />ALUMF-ASCIA 4 (SEE R PLAN)
<br />SOFFIT
<br />Simpson Strong -Tie 6P2 or equal
<br />Installed per manufacturer. \
<br />Uplift is less than 585*
<br />TEXTURED STUCCO OVER
<br />EXP. MTL. LATH OVER
<br />*15 BLDG. FELT ON
<br />ASPHALT IMPREGNATED
<br />COMP. BOARD (OR
<br />INSULATIVE FIBER BOARD
<br />SHEATHING.
<br />EXTERIOR SIDING OVER
<br />*15 BLDG_ FELT WITH
<br />OR WITHOUT INSULATIVE
<br />FIBER BOARD 4 SHEATHING
<br />Simpson Strong -Tie SPI
<br />Installed per manufactu'r
<br />Uplift is less than 5850
<br />2-11/1(o"
<br />(FRAME)
<br />0 11 FRAME TO EX. BLOCK DETP41
<br />wlii�� HARDWARE OPTION
<br />z�
<br />PANEL EDGE SUPPORT FOR NARROW WIDTH ROOF
<br />SHEATHING" PER TECHNICAL NOTE #R215A 16-24 "-DOUBLE
<br />PLY CLIP THE SIDE ADJACENT TO THE FULL WIDTH PANEL -
<br />NONE REQUIRED AT RIDGE OR HIP. 12" TO 16" - LUMBER
<br />ONLY BLOCKING (2x4) FLAT WISE OR ENDWISE ON THE SIDE
<br />ADJACENT TO THE FULL WIDTH PANEL NONE REQUIRED AT
<br />RIDGE OR HIP. FOR PLYWOOD SHEATHING 12" OR LESS -
<br />LUMBER ONLY BLOCKING, (2x4) FLAT WISE OR EDGEWISE ON
<br />BOTH PANEL EDGES.
<br />1tiky,titit�tit�tititit�
<br />1/2" CD OR 5/B"
<br />DRYWALL ON CEILING
<br />(2)2X4 TOP PLATE
<br />or (2)2Xro TOP PLATE
<br />1/2"DRYWALL OVER
<br />2X4 STUDS a 16" O.C.
<br />or 2X6 a 24"O.C.
<br />BATT. INSULATION
<br />AS SPECIFIED
<br />2X4 or 2X6 BLOCKING
<br />NOTE:
<br />INSTALL 2X4 CORNER
<br />BRACING AT ALL EXT
<br />CORNERS OR PLYWOO
<br />SHEATHING AT EACH
<br />SIDE OF CORNER.
<br />2X4 P.T. PL. POWER
<br />SET INTO GONG.
<br />S" ANCHOR BOLT
<br />4'-O" O.C.
<br />WOOD BASE
<br />(1) 2 -0" 04 COPPER (WITH \ 9
<br />AP ROVED CLAMP) TIED
<br />T FTG_ STEEL AND GRND_ N q
<br />OD (BY OTHERS) AT II
<br />ELECTRICAL BOX LOCATION 14"
<br />(2)2X4 or (2)2X6
<br />TOP PLATE
<br />2X4 or 2X6
<br />JACKS
<br />(2)2X(o *2 YELLOW
<br />PINE HEADER (UP
<br />TO 5'-0" SPAN) OR
<br />(2) 2XI2 Y.P. HDR_
<br />W/NO JACKS)
<br />.UM. WINDOW
<br />�RBLE SILL
<br />'4 SILL PL. or 2X6 SILL OL_
<br />3000 PSI GONG.
<br />6"x 6"x 10/10 E.W.W. MESH REINFORCING
<br />REQUIRED THROUGHOUT THE CONCRETE SLAB
<br />GROUND ROD (BY OTHERS) \ `- 6 MIL_ VAP_ BARRIER
<br />\- (2)#5 REBAR CONT_ ON *3 CHAIRS
<br />(3" MIN. COVER)
<br />0 1 TYP I CA1M WALL SECTION
<br />HARDWARE OPTION
<br />CONCRETE -ENCASED ELECTRODE. AN ELECTRODE ENCASED BY AT LEAST 2" OF
<br />CONCRETE, LOCATED WITHIN AND NEAR THE BOTTOM OF THE CONCRETE FOUNDATION
<br />OR FOOTING THAT IS IN DIRECT CONTACT WITH THE EARTH, CONSISTING OF AT LEAST
<br />20 FT. OF ONE OR MORE BARE OR ZINC GALVANIZED OR OTHER ELECTRICITY
<br />CONDUCTIVE COATED STEEL REINFORCING BARS OR RODS OF NOT LESS THAN 1/2
<br />INCH DIAMETER, OR CONSISTING OF AT LEAST 20 FEET OF BARE COPPER
<br />CONDUCTOR NOT SMALLER THAN 4 AWG. REINFORCING BARS SHALL BE PERMITTED
<br />TO BE BONDED TOGETHER BY THE USUAL STEEL TIE WIRES OR OTHER EFFECTIVE
<br />MEANS-"
<br />TABLE R301. 5
<br />MINIMUM UNIFORMLY DISTRIBUTED LIVE LOADS
<br />(in pounds per square foot)
<br />USE
<br />LIVE LOAD
<br />Uninhabitable attics without storage b,g
<br />10
<br />Uninhabitable attics with limited storage b,g
<br />20
<br />Habitable attics and attics served with fixed stairs
<br />30
<br />Balconies (exterior) and decks e
<br />40
<br />Fire escapes
<br />40
<br />Guardrails and handrails d
<br />200h
<br />Guardrail in -fill components f
<br />50h
<br />Passenger vehicle garages a
<br />50a
<br />Rooms other than sleeping room
<br />40
<br />Sleeping rooms
<br />30
<br />Stairs
<br />40c
<br />For SI: 1 pound per square foot = 0.0479 kPa, 1 square inch = 645 mm2,
<br />1 pound = 4.45 N.
<br />a. Elevated garage floors shall be capable of supporting a 2,000-pound load applied over a 20-square-inch area.
<br />b. Uninhabitable attics without storage are those where the maximum clear height between joists and rafters is less than 42 inches,
<br />or where there are not two or more adjacent trusses with web configurations capable of accommodating an assumed rectangle 42 inches
<br />high by 24 inches in width, or greater, within the plane of the trusses. This live load need not be assumed to act concurrently with
<br />any other live load requirements.
<br />c. Individual stair treads shall be designed for the uniformly distributed live load or a 300-pound concentrated load acting over an
<br />area of 4 square inches, whichever produces the greater stresses.
<br />d. A single concentrated load applied in any direction at any point along the top.
<br />e. See Section R502.2 for decks attached to exterior walls.
<br />f. Guard in -fill components (all those except the handrail), balusters and panel fillers shall be designed to withstand a
<br />horizontally applied normal load of 50 pounds on an area equal to 1 square foot. This load need not be assumed to act concurrently
<br />with any other live load requirement.
<br />g. Uninhabitable attics with limited storage are those where the maximum clear height between joists and rafters is 42 inches or
<br />greater, or where there are two or more adjacent trusses with web configurations capable of accommodating an assumed rectangle 42
<br />inches in height by 24 inches in width, or greater, within the plane of the trusses.
<br />The live load need only be applied to those portions of the joists or truss bottom chords where all of the following conditions are
<br />met:
<br />1. The attic area is accessible from an opening not less than 20 inches in width by 30 inches in length that is located where the
<br />clear height in the attic is a minimum of 30 inches.
<br />2. The slopes of the joists or truss bottom chords are no greater than 2 inches vertical to 12 units horizontal.
<br />3. Required insulation depth is less than the joist or truss bottom chord member depth.
<br />The remaining portions of the joists or truss bottom chords shall be designed for a uniformly distributed concurrent live load of not
<br />less than 10 lb/ft2.
<br />h. Glazing used in handrail assemblies and guards shall be designed with a safety factor of 4. The safety factor shall be applied to
<br />each of the concentrated loads applied to the top of the rail, and to the load on the in -fill components. These loads shall be
<br />determined independent of one another, and loads are assumed not to occur with any other live load.
<br />a
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