|
- -- - - - -
<br />.
<br />- - - - - --
<br />i
<br />1. ASTM C 1002 for fastening metal lath to wood or steel members less than 0.033 inch thick.
<br />2. Steel drill screws complying with ASTM C 954 for fastening metal lath to steel members 0.033 to 0.112 inch
<br />thick.
<br />-
<br />3. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work
<br />=
<br />include, but are not limited to, the following:
<br />a. ChemRex, Inc., Contech Brands; PL Acoustical Sealant.
<br />b. Pecora Corp.; AC-20 FTR Acoustical and Insulation Sealant.
<br />-
<br />C. United States Gypsum Co.; SHEETROCK Acoustical Sealant.
<br />F.
<br />Three -Coat Work over Metal Lath:
<br />1. Scratch and Brown Coat Mixes: Scratch, 1 part portland cement, 0 to 3/4 parts lime, 2-1/2 to 4 parts aggregate;
<br />brown, 1 part portland cement, 0 to 3/4 parts lime, 3 to 5 parts aggregate.
<br />- G.
<br />Two -Coat Work over Concrete Unit Masonry:
<br />1. Base Coat Mix: 1 part portland cement, 3/4 to 1-1/2 parts lime, 3 to 4 parts aggregate.
<br />H.
<br />Job -Mixed Finish Coats:
<br />1. Mixes with Sand Aggregates: 1 part portland cement, 3/4 to 1-1/2 parts lime, 3 parts sand.
<br />PART 3
<br />- EXECUTION
<br />3.1
<br />LATH AND FURRING INSTALLATION, GENERAL
<br />A.
<br />Standards: Comply with ML/SFA 920, "Guide Specifications for Metal Lathing and Furring," and ASTM C 1063.
<br />B.
<br />Install supplementary framing, blocking, and bracing at terminations in work and for support of fixtures, equipment
<br />services, heavy trim, grab bars, handrails, furnishings, and similar work to comply with details indicated or, if not
<br />otherwise indicated, to comply with applicable written instructions of lath and furring manufacturer.
<br />C.
<br />Isolation: Where lathing and metal support system abut building structure horizontally and where partition or wall
<br />abuts overhead structure, isolate from structural movement to prevent transfer of loading from building structure.
<br />1. Frame both sides of control joints independently and do not bridge joints with furring and lathing or accesso-
<br />j
<br />ries.
<br />D.
<br />Install additional framing, furring, runners, lath, and beads, as required to form openings and frames for other work as
<br />-
<br />indicated. Coordinate support system for proper support of framed work that is not indicated to be supported indepen-
<br />11
<br />dently of metal furring and lathing system.
<br />3.2
<br />NON -LOAD -BEARING FRAMING INSTALLATION
<br />A.
<br />Ceiling Suspension Systems:
<br />1. Preparation and Coordination: Coordinate installation of ceiling suspension system with installation of over-
<br />head structural systems to ensure inserts and other structural anchorage provisions have been installed to receive
<br />ceiling hangers in a manner that will develop their full strength and at spacings required to support ceiling.
<br />2. Hanger Installation: Comply with ML/SFA 920, "Guide Specifications for Metal Lathing and Furring," and
<br />with referenced standards.
<br />a. Do not attach hangers to metal deck tabs.
<br />3. Install ceiling suspension system components of sizes and spacings indicated, but not in smaller sizes or greater
<br />spacings than those required by referenced lathing and furring installation standards.
<br />B.
<br />Partition Framing and Furring: Comply with ASTM C 754 and ML/SFA 920, "Guide Specifications for Metal Lathing
<br />and Furring."
<br />1. Steel Stud Systems to Receive Metal Lath:
<br />a. Extend and attach partition support systems to structure above suspended ceilings, unless otherwise indi-
<br />cated.
<br />b. Extend partition support systems to finish ceilings and attach to ceiling suspension members, unless oth-
<br />erwise indicated.
<br />3.3
<br />LATHING
<br />A.
<br />Install where plaster base coats are required. Provide appropriate type, configuration, and weight of metal lath selected
<br />from materials indicated that comply with referenced ML/SFA specifications and ASTM lathing installation stan-
<br />dards.
<br />I . Suspended and Furred Ceilings: Use flat, diamond -mesh lath.
<br />_
<br />2 Vertical Metal Framing and Furring: Use flat, diamond -mesh lath and cold -rolled channel stud framing.
<br />3. Exterior Sh , ihed Wall Surfaces: Use paper -faced, self -furring, diamond -mesh lath
<br />4. M:;tnolithie Surfaces: Use [self -furring, diamond -mesh lath or vertical metal framing and furring as required for
<br />plaster thickness.
<br />1 3.4
<br />PREPARATIONS FOR PLASTERING
<br />A.
<br />Protect contiguous Work from damage and deterioration caused by plastering with temporary covering and other pro-
<br />visions necessary.
<br />B.
<br />Clean plaster bases and substrates for direct application of plaster, removing loose material and substances that may
<br />impair the Work.
<br />C.
<br />Etch concrete and concrete unit masonry surfaces indicated for direct plaster application. Scrub with acid -etching
<br />solution on previously wetted surface and rinse thoroughly with clean water. Repeat apincation, if necessary, to
<br />�'i
<br />obtain adequate suction and mechanical bond of plaster (where dash coat, bonding agent, or additive is not used).
<br />D.
<br />Apply bonding agent on concrete and concrete unit masonry surfaces indicated for direct plaster application.
<br />E.
<br />Apply dash coat on concrete surfaces indicated for direct luster application. Moist -cure f a s 2 pp y p dash coat or at least �4 hours
<br />-
<br />I
<br />after application and before plastering.
<br />F.
<br />Install temporary grounds and screeds to ensure accurate rodding of plaster to true surfaces; coordinate with scratch -
<br />coat work.
<br />_- G.
<br />Refer to Division 6 Sections for installing permanent wood grounds.
<br />H.
<br />Refer to Division 7 Sections for installing flashing.
<br />x
<br />1.
<br />Surface Conditioning: Immediately lastering,dam en concrete and concrete unit masonry except
<br />where a bonding agent has been applied, to produce optimum suction for plastering.
<br />:i
<br />3.5
<br />PLASTERING ACCESSORIES INSTALLATION
<br />A.
<br />General: Comply with referenced lathing and furring installation standards for provision and location of plaster acces-
<br />sories. Miter or cope accessories at corners; install with tight joints and in alignment. Attach accessories securely to
<br />plaster bases to hold accessories in place and in alignment during plastering.
<br />1. External Corners: Install corner reinforcement. • external �r atcorners.
<br />2. Terminations of Plaster: Install casing beads, unless otherwise indicated.
<br />3. Control Joints: Install at locations indicated or, if not indicated, at locations complying with the following cri-
<br />�;a
<br />teria and approved by Architect::
<br />,`
<br />a. Where an expansion or contraction joint occurs in surface of construction directly behind plaster mem-
<br />brane.
<br />b. Distance between Control Joints: Not to exceed 18 feet in either direction or a length -to -width ratio of
<br />2-1/2 to 1.
<br />7.
<br />c. Wall Areas: Not more than 144 sq. ft.
<br />d. Horizontal Surfaces: Not more than 100 sq., ft. in area.
<br />-
<br />e. Where plaster panel sizes or dimensions change, extend joints full width or height of plaster membrane.
<br />B.
<br />Where sound -rated plaster work is indicated by STC ratings or other notation, seal work at perimeters, control joints,
<br />openings, and penetrations with a continuous bead of acoustical sealant. Comply with ASTM C 919 and plaster -
<br />manufacturer's written instructions for location of sealant beads.
<br />f, C.
<br />Install sound attenuation blankets within stud cavities where indicated.
<br />3.6
<br />PLASTER APPLICATION
<br />A.
<br />Plaster Application Standard: Comply with ASTM C 926.
<br />_
<br />1. Mixing: Mechanically mix cementitious and aggregate materials for plasters to comply with applicable refer-
<br />enced application standard and with recommendations of plaster manufacturer.
<br />2. Do not use materials that are frozen, caked, lumpy, dirty, or contaminated by foreign materials.
<br />3. Do not use excessive water in mixing and applying plaster materials.
<br />B.
<br />Flat Surface T ler•n r o aces• .. D o lot deviate more than plus or minus 1/8 inch in 10 feet from a true plane in finished
<br />plaster surfaces, as measured by a 10-foot straightedge placed at any location on surface.
<br />C.
<br />Grout hollow -metal frames, bases, and similar work occurring in plastered areas, with base -coat plaster material, and
<br />before lathing where necessary. Except where full grouting is indicated or required for fire -resistance rating, grout at
<br />least 6 inches at each jamb anchor.
<br />D.
<br />Sequence plaster application with installation and protection of other work so that neither will be damaged by instal-
<br />•
<br />lction of other.
<br />E.
<br />Plaster flush with metal frames and other built-in metal items or accessories that act as a plaster ground, unless other-
<br />"�
<br />wise indicated. Where interior plaster is not terminated at metal frame by casing beads, cut base coat free from metal
<br />frame before plaster sets and groove finish coat at junctures with metal.
<br />- F.
<br />Corners: Make internal corners and angles square; finish external corners flush with eornerbeads on interior work,
<br />square and true with plaster faces on exterior work.
<br />G.
<br />Number of Coats:
<br />1. Metal Lath: Three coats.
<br />2. Concrete Unit Masonry: Two coats.
<br />3. Concrete, Cast -in -Place or Precast: Two coats when surface condition complies with ASTM C 926 for plaster
<br />bonded to solid base.
<br />H.
<br />Finish Coats:
<br />1. Float Finish: Apply finish coat to a minimum thickness of 1/8 inch to completely cover base coat, uniformly
<br />floated to a true even plane with fine -textured finish matching sample.
<br />2. Trowel -Textured Finish: Apply finish coat with hand -troweled -textured finish matching sample.
<br />3. Moist -cure plaster base and finish coats to comply with ASTM C 926, including written instructions for time
<br />between coats and curing in "Alex A2 Design Considerations."
<br />3.7
<br />CUTTING, PATCHING, AND CLEANING
<br />- A.
<br />Cut, patch, replace, repair, and point up plaster as necessary to accommodate other work. Repair cracks and indented
<br />surfaces. Point -up finish plaster surfaces around items that are built into or penetrate plaster surfaces. Repair or
<br />replace work to eliminate blisters, buckles, check cracking, dry outs, efflorescence, excessive pinholes, and similar
<br />defects. Repair or replace work as necessary to comply with required visual effects.
<br />B.
<br />Remove temporary covering and other provisions made to minimize spattering of plaster on other work. Promptly
<br />remove plaster from door frames, windows, and other surfaces not to be plastered. Repair surfaces stained, marred or
<br />otherwise damaged during plastering work.
<br />END OF SECTION 09220
<br />SECTION 09260 - GYPSUM BOARD ASSEMBLIES
<br />PART 1 - GENERAL
<br />1.1 SUMMARY
<br />A. This Section includes the following:
<br />1. Exterior gypsum board panels for ceilings and soffit
<br />s.
<br />2. Non -load -bearing steel framing.
<br />12 SUBMITTALS
<br />A. Product Data: For each product indicated.
<br />B. Samples: For each textured finish indicated and on same backing indicated for Work upon request of Architect.
<br />1.3 QUALITY ASSURANCE
<br />A. Fire -Test -Response Characteristics: For gypsum board assemblies with fire -resistance ratings, provide materials and
<br />construction identical to those tested in assembly indicated according to ASTM E 119 by an independent testing and
<br />inspecting agency acceptable to authorities having jurisdiction.
<br />B. Sound Transmission Characteristics: For gypsum board assemblies with STC ratings, provide materials and construc-
<br />tion identical to those tested in assembly indicated according to ASTM E 90 and classified according to ASTM E 413
<br />by a qualified independent testing agency.
<br />PART 2 - PRODUCTS
<br />2.1 MANUFACTURERS
<br />A. In other Part 2 articles where subparagraph titles below introduce lists, the following requirements apply for product
<br />selection:
<br />1. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work
<br />include, but are not limited to, the products specified.
<br />2.2 STEEL FRAMING
<br />A. Steel Framing, General: Comply with ASTM C 754 for conditions indicated.
<br />1. Steel Sheet Components: Metal complying with ASTM C 645 requirements.
<br />a. Protective Coating:
<br />2) Exterior Applications: ASTM A 653/A 653M, G60, hot -dip galvanized zinc coating.
<br />B. Suspended Ceiling and Soffit Framing:
<br />I. Tie Wire: ASTM A 641/A 641M, Class 1 zinc coating, soft temper, 0.0625-inch- diameter wire, or double
<br />strand of 0. 0475-inch- diameter wire.
<br />2. Hanger Attachments to Concrete:
<br />a. Powder -Actuated Fasteners: Suitable for application indicated, fabricated from corrosion -resistant mate-
<br />rials, with clips or other devices for attaching hangers of type indicated, and capable of sustaining, with-
<br />out failure, a load equal to 10 times that imposed by construction as determined by testing according to
<br />ASTM E 1190 by a qualified independent testing agency.
<br />3. Wire Hangers: ASTM A 641/A 641M, Class 1 zinc coating, soft temper, 0.162-inch diameter..
<br />4. Carrying Channels: Cold -rolled, commercial -steel sheet with a base metal thickness of 0.0538 inch, a mini-
<br />mum 1/2-inch-wide flange, and in depth indicated.
<br />5. Furring Channels (Furring Members):
<br />a. Steel Studs: ASTM C 645, in depth indicated.
<br />b. "Z" Shaped, Rigid Furring Channels: ASTM C 645, 1 1/2 inch deep.
<br />C. Partition and Soffit Framing:
<br />1. Steel Studs and Runners: ASTM C 645, in depth indicated.
<br />2. Deep -Leg Deflection Track: ASTM C 645 top runner with 2-inch-deep flanges.
<br />3. Flat Strap and Backing Plate: Steel sheet for blocking and bracing in length and width indicated.
<br />a. Minimum Base Metal Thickness: 0.0179 inch or as indicated.
<br />4. Cold -Rolled Channel Bridging: 0.0538-inch bare steel thickness, with minimum 1/2-inch-wide flange, and in
<br />depth indicated.
<br />a. Clip Angle: 1-1/2 by 1-1/2 inch, 0.068-inch-thick, galvanized steel.
<br />5. , Hat -Shaped, Rigid Furring Channels: ASTM C 645, in depth indicated.
<br />a. Minimum Base Metal Thickness: 0.0179 inch.
<br />b. Tie Wire: ASTM A 641/A 641M, Class 1 zinc coating, soft temper, 0.0625-inch- (1.59-mm-) diameter
<br />wire, or double strand of 0.0475-inch-diameter wire.
<br />6. Fasteners for Metal Framing: Of type, material, size, corrosion resistance, holding power, and other properties
<br />required to fasten steel members to substrates.
<br />2.3 PANEL PRODUCTS
<br />A. Panel Size, General: Provide in maximum lengths and widths available that will minimize joints in each area and cor-
<br />respond with support system indicated.
<br />B. Gypsum Wallboard.: ASTM C 36.
<br />1. Regular Type: In thickness indicated and with long edges tapered.
<br />2. Type X: In thickness indicated and with long edges tapered.
<br />C. Flexible Gypsum Wallboard: ASTM. C 36, manufactured to bend to fit tight radii and to be more flexible than standard
<br />regular -type panels of the same thickness, 1 /4 inch thick, and with long edges tapered. Apply in double layer at curved
<br />assemblies.
<br />D. Sag -Resistant Gypsum Wallboard: ASTM C 36, manufactured to have more sag resistance than regular -type gypsum
<br />board, 1/2 inch (12.7 inm) thick, and with long edges tapered. Apply on ceiling surfaces.
<br />E. Exterior Gypsum Panels for Ceilings and Soffits:
<br />I . Glass -Mat Gypsum Sheathing Board: ASTM C 1177/C 1177M, with core type and in thickness indicated.
<br />a. Product: G-P Gypsum Corp; Dens -Glass Gold.
<br />2A TRIM ACCESSORIES
<br />A. Exterior Trim: ASTM C 1047, hot -dip galvanized steel sheet or rolled zinc.
<br />I . Cornerbead: Use at outside corners.
<br />2. LC -Bead: Use at exposed panel edges.
<br />3. Expansion (Control) Joint: One-piece, rolled zinc with V-shaped slot and removable strip covering slot open-
<br />ing.
<br />B. Alu7ninum'I'rim: Extruded accessories of profiles and dimensions indicated.
<br />1. Products:
<br />a. Fry Reglet Corp.; As indicated by designation on Drawings.
<br />b. Gordon, Inc..
<br />C. MM Systems Corporation; As indicated by designation on Drawings.
<br />d. Pittcon Industries; As indicated by designation on Drawings.
<br />2. Aluminum: Alloy and temper with not less than the strength and durability properties of ASTM B 221,
<br />alloy 6063-T5.
<br />3. Finish: Corrosion -resistant primer compatible with joint compound and finish materials specified.
<br />2.5 JOINT TREATMENT MATERIALS
<br />A. General: Comply with ASTM C 475.
<br />B. Joint Tape:
<br />I . Interior Gypsum Wallboard: Paper.
<br />2. Exterior Gypsum Soffit Board: Paper.
<br />3. Glass -Mat Gypsurn Sheathing Board: 10-by-10 glass mesh.
<br />C. Joint Compound for Interior Gypsum Wallboard: For each coat use formulation that is compatible with other com-
<br />pounds applied on previous or for successive coats.
<br />1. Prefilling: At open joints and damaged surface areas, use setting -type taping compound.
<br />2. Embedding and First Coat: For embedding tape and first coat on joints, flanges of trim accessories, and fasten-
<br />ers, use setting -type taping compound.
<br />3. Fill Coat: For second coat use setting -type, g ype, topping compound.
<br />4. Finish Coat: For third coat, use setting -type, sandable topping compound.
<br />5. Skim Coat: For final coat of Level 5 finish, use setting -type, sandable topping compound.
<br />D. Joint Compound for Exterior Applications:
<br />1. Exterior Gypsum Soffit Board: Use setting -type taping and setting -type, sandable topping compounds.
<br />2. Glass -Mat Gypsum Sheathing Board: As recommended by manufacturer.
<br />E. Joint Compound for Tile Backing Panels:
<br />1. Water -Resistant Gypsum Backing Board: Use setting -type taping and setting -type, sandable topping com-
<br />pounds.
<br />2. Glass -Mat, Water -Resistant Backing Panel: As recommended by manufacturer.
<br />3. Cementitious Backer Units: As recommended by manufacturer.
<br />2.6 AUXILIARY MATERIALS
<br />A. General: Provide auxiliary materials that comply with referenced installation standards and manufacturer's written
<br />recommendations.
<br />1. Use screws complying with ASTM C 954 for fastening panels to steel members from 0.033 to 0.112 inch (0.84
<br />to 2.84 mm) thick.
<br />2. For fastening cementitious backer units, use screws of type and size recommended by panel manufacturer.
<br />PART 3 - EXECUTION
<br />3.1 NON -LOAD -BEARING STEEL FRAMING INSTALLATION
<br />A. General: Comply with ASTM C 754, and ASTM C 840 requirements that apply to framing installation.
<br />B. Suspended Ceiling and Soffit Framing:
<br />1. Suspend ceiling hangers plumb and free from contact with insulation or other objects within ceiling plenum
<br />that are not part of supporting structural or ceiling suspension system. Splay hangers only where required to
<br />miss obstructions and offset resulting horizontal forces by bracing, countersplaying, or other equally effective
<br />means.
<br />2. Where width of ducts and other construction within ceiling plenum produces hanger spacings that interfere with
<br />the location of hangers required to support standard suspension system members, install supplemental suspen-
<br />sion members and hangers in form of trapezes or equivalent devices. Size supplemental suspension members
<br />and hangers to support ceiling loads within performance limits established by referenced standards.
<br />3. Attach hangers to structural members. Do not support ceilings from or attach hangers to permanent metal
<br />forms, steel deck tabs, steel roof decks, ducts, pipes, or conduit.
<br />4. Screw furring to wood framing.
<br />5. Wire -tie furring channels to supports, as required to comply with requirements for assemblies indicated.
<br />6. Grid Suspension System: Attach perimeter wall track or angle where grid suspension system meets vertical
<br />surfaces. Mechanically join main beam and cross -furring members to each other and butt -cut to fit into wall
<br />track.
<br />C. Partition and Soffit Framing:
<br />1. Where studs are installed directly against exterior walls, install isolation strip between studs and wall.
<br />2. Extend partition framing full height to structural supports or substrates above suspended ceilings, except where
<br />partitions are indicated to terminate at suspended ceilings. Continue framing over frames for doors and open-
<br />ings and frame around ducts penetrating partitions above ceiling to provide support for gypsum board.
<br />3. Frame door openings to comply with GA-600 and with gypsum board manufacturer's applicable written rec-
<br />ommendations, unless otherwise indicated. Screw vertical studs at jambs to jamb anchor clips on door frames;
<br />install runner track section (for cripple studs) at head and secure to jamb studs.
<br />a. Install two studs at each jamb, unless otherwise indicated.
<br />b. Extend jamb studs through suspended ceilings and attach to underside of floor or roof structure above.
<br />4. Frame openings other than door openings the same as required for door openings, unless otherwise indicated.
<br />Install framing below sills of openings to match framing required above door heads.
<br />3.2 PANEL PRODUCT INSTALLATION
<br />A. Gypsum Board: Comply with ASTM C 840 and GA-216.
<br />1. Space screws a maximum of 12 inches o.c. for vertical applications.
<br />2. On ceilings, apply gypsum panels before wall/partition board application to the greatest extent possible and at
<br />right angles to framing, unless otherwise indicated.
<br />3. On partitions/walls, apply gypsum panels vertically (parallel to framing), unless otherwise indicated or required
<br />by fire -resistance -rated assembly, and minimize end joints.
<br />a. Stagger abutting end joints not less than one framing member in alternate courses of board.
<br />b. At stairwells and other high walls, install panels horizontally, unless otherwise indicated or required by
<br />fire -resistance -rated assembly.
<br />4. Single -Layer Fastening Methods: Apply gypsum panels to supports with steel drill screws.
<br />5. Laminating to Substrate: Comply with gypsum board manufacturer's written recommendations and temporar-
<br />ily brace or fasten gypsum panels until fastening adhesive has set.
<br />B. Exterior Ceilings and Soffits: Apply exterior gypsum panels perpendicular to supports, with end joints staggered and
<br />located over supports.
<br />1. Fasten with corrosion -resistant screws.
<br />3.3 FINISHING
<br />A. Installing Trim Accessories: For trim with back flanges intended for fasteners, attach to framing with same fasteners
<br />used for panels. Otherwise, attach trim according to manufacturer's written instructions.
<br />B. Finishing Gypsum Board Panels: Treat gypsum board joints, interior angles, edge trim, control joints, penetrations,
<br />fastener heads, surface defects, and elsewhere as required to prepare gypsum board surfaces for decoration.
<br />1. Prefill open joints and damaged surface areas.
<br />2. Apply joint tape over gypsum board joints, except those with trim having flanges not intended for tape.
<br />3. Glass -Mat Gypsum Sheathing Board: Finish according to manufacturer's written instructions for use as exposed
<br />soffit board.
<br />4. Glass -Mat, Water -Resistant Backing Panels: Finish according to manufacturer's written instructions.
<br />C. Gypsum Board Finish Levels: Finish panels to levels indicated below, according to ASTM C 840, for locations indi-
<br />cated:
<br />1. Level 4: Embed tape and apply separate first, fill, and finish coats of joint compound to tape, fasteners, and trim
<br />flanges at panel surfaces that will be exposed to view, unless otherwise indicated.
<br />END OF SECTION 09260
<br />SECTION 09900 - PAINT AND WALL FINISHES
<br />PART I- GENERAL
<br />1.1 SUMMARY
<br />A. This Section includes surface preparation and field painting of exposed items and surfaces.
<br />1.2 SUBMITTALS
<br />A. Product Data: For each product indicated.
<br />B. Samples: For each type of finish -coat material indicated.
<br />1.3 QUALITY ASSURANCE
<br />A. Benchmark Samples (Mockups): Provide a full -coat benchmark finish sample for each type of coating and substrate
<br />required. Comply with procedures specified in PDCA P5.
<br />1. Wall Surfaces: Provide samples on at least 100 sq. ft..
<br />2. Small Areas and Items: Architect will designate items or areas required.
<br />3. Final approval of colors will be from benchmark samples.
<br />1.4 PROJECT CONDITIONS
<br />A. Store materials not in use in tightly covered containers in a well -ventilated area at a minimum ambient temperature of
<br />45 deg F. Maintain storage containers in a clean condition, free of foreign mate;=--ia'k and residue.
<br />B. Apply waterborne paints only when temperatures of surfaces to be painted and surrounding air are between 50 and
<br />90 deg F.
<br />C. Apply solvent -thinned paints only when temperatures of surfaces to be painted and surrounding air are between 45 and
<br />95 deg F.
<br />D. Do not apply paint in snow, rain, fog, or mist; or when relative humidity exceeds 85 percent; or at temperatures less
<br />than 5 deg F above the dew point; or to damp or wet surfaces.
<br />1.5 EXTRA MATERIALS
<br />A. Furnish extra paint materials from the same production run as the materials applied and in the quantities described
<br />below. Package with protective covering for storage and identify with labels describing contents. Deliver extra mate-
<br />rials to Owner.
<br />I. Quantity: 3 percent, but not less than 1 gal. or I case, as appropriate, of each material and color applied.
<br />PART 2 - PRODUCTS
<br />2.1 MANUFACTURERS
<br />A. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work
<br />include, but are not limited to, products listed in other Part 2 articles.
<br />B. Products: Subject to compliance with requirements, provide one of the products listed in other Part 2 articles.
<br />C. Manufacturers' Names: Shortened versions (shown in parentheses) of the following manufacturers' names are used in
<br />other Part. 2 articles:
<br />I. Benjamin Moore & Co. (Benjamin Moore).
<br />2. ICI Dulux Paint Centers (ICI Dulux Paints).
<br />3. Sherwin-Williams Co. (Sherwin-Williams).
<br />2.2 PAINT MATERIALS, GENERAL
<br />A. Material Compatibility: Provide block fillers, primers, and finish -coat materials that are compatible with one another
<br />and with the substrates indicated under conditions of service and application, as demonstrated by manufacturer based
<br />on testing and field experience.
<br />B. Material Quality: Provide manufacturer's best -quality paint material of the various coating types specified that are
<br />factory formulated and recommended by manufacturer for application indicated. Paint -material containers not dis-
<br />playing manufacturer's product identification will not be acceptable.
<br />C. Colors: As indicated by manufacturer's designations.
<br />2.3 PREPARATORY COATS
<br />A. Concrete Unit Masonry Block Filler: High-performance latex block filler of finish coat manufacturer and recom-
<br />mended in writing by manufacturer for use with finish coat and on substrate indicated.
<br />B. Exterior Primer: Exterior alkyd or latex -based primer of finish coat manufacturer and recommended in writing by
<br />manufacturer for use with finish coat and on substrate indicated.
<br />1. Ferrous -Metal and Aluminum Substrates: Rust -inhibitive metal primer.
<br />2 Zi
<br />nc -Coated Coated Metal Substrates: Galvanized metal primer.
<br />3. Where manufacturer does not recommend a separate primer formulation on substrate indicated, use paint speci-
<br />fied for finish coat.
<br />C. Interior Primer: Interior latex -based or alkyd primer of finish coat manufacturer and recommended in writing by
<br />manufacturer for use with finish coat and on substrate indicated.
<br />1. Ferrous -Metal Substrates: Quick drying, rust -inhibitive metal primer.
<br />2. Zinc -Coated Metal Substrates: Galvanized metal primer.
<br />3. Where manufacturer does not recommend a separate primer formulation on substrate indicated, use paint speci-
<br />fied for finish coat.
<br />2.4 EXTERIOR FINISH COATS
<br />A. Exterior Low -Luster - Satin Finish Acrylic Paint:
<br />1. Benjamin Moore; Moorcraft Super Spec 100% Acrylic Exterior Satin No. 184.
<br />2. ICI Dulux Paints; 2402 series Dulux Professional Exterior 100% Acrylic Satin Finish.
<br />3. Sherwin-Williams; A-100 Exterior Latex Satin House & Trim Paint A82 Series.
<br />B. Exterior Full -Gloss Acrylic Enamel for Ferrous and Other Metals:
<br />1. Benjamin Moore; Moore's IMC Acrylic Gloss Enamel M28.
<br />2. ICI Dulux Paints; 3028-XXXX Dulux Interior/Exterior Acrylic Gloss Finish.
<br />3. Sherwin-Williams; DTM Acrylic Coating Gloss (Waterborne) B66W 100 Series.
<br />PART 3 - EXECUTION
<br />3.1 APPLICATION
<br />A. Comply with procedures specified in PDCA P4 for inspection and acceptance of surfaces to be painted.
<br />B. Coordination of Work: Review other Sections in which primers are provided to ensure compatibility of the total
<br />system for various substrates. On request, furnish information on characteristics of finish materials to ensure use of
<br />compatible primers.
<br />C. Remove hardware and hardware accessories, plates, machined surfaces, lighting fixtures, and similar items already
<br />installed that are not to be painted. If removal is impractical or impossible because of size or weight of the item, pro-
<br />vide surface -applied protection before surface preparation and painting.
<br />l . After completing painting operations in each space or area, reinstall items removed using workers skilled in the
<br />trades involved.
<br />D. Surface Preparation: Clean and prepare surfaces to be painted according to manufacturer's written instructions for
<br />each particular substrate condition and as specified.
<br />1. Provide barrier coats over incompatible primers or remove and reprime.
<br />2. Cementitious Materials: Remove efflorescence, chalk, dust, dirt, grease, oils, and release agents. Roughen as
<br />required to remove glaze. If hardeners or sealers have been used to improve curing, use mechanical methods of
<br />surface preparation.
<br />3. Wood: Clean surfaces of dirt, oil, and other foreign substances with scrapers, mineral spirits, and sandpaper, as
<br />required. Sand surfaces exposed to view smooth and dust off.
<br />a. Scrape and clean small, dry, seasoned knots, and apply a thin coat of white shellac or other recommended
<br />knot sealer before applying primer. After priming, fill holes and imperfections in finish surfaces with
<br />putty or plastic wood filler. Sand smooth when dried.
<br />b. Prime, stain, or seal wood to be painted immediately on delivery. Prime edges, ends, faces, undersides,
<br />and back sides of wood, including cabinets, counters, cases, and paneling.
<br />C. If transparent finish is required, baekprime with spar varnish.
<br />d. Backprime paneling on interior partitions where masonry, plaster, or other wet wall construction occurs
<br />on back side.
<br />e. Seal tops, bottoms, and cutouts of unprimed wood doors with a heavy coat of varnish or sealer immedi-
<br />ately on delivery.
<br />4. Ferrous Metals: Clean ngalv nrized ferrous -metal surfaces that have not been shop coated; remove oil, grease,
<br />dirt, loose mill scale, and other foreign substances. Use solvent or mechanical cleaning methods that comply
<br />with SSPC s recommendations.
<br />a. Blast steel surfaces clean as recommended by paint system manufacturer and according to SSPC-SP
<br />6/NACE No. 3.
<br />b. Treat bare and sandblasted or pickled clean metal with a metal treatment wash coat before priming.
<br />C. Touch up bare areas and shop -applied prime coats that have been damaged. Wire -brush, clean with sol-
<br />vents recommended by paint manufacturer, and touch up with same primer as the shop coat.
<br />5. Galvanized Surfaces: Clean galvanized surfaces with nonpetroleum-based solvents so surface is free of oil
<br />and surface contaminants. Remove pretreatment from galvanized sheet metal fabricated from coil stock by
<br />mechanical methods.
<br />E. Material Preparation:
<br />1. Maintain containers used in mixing and applying paint in a clean condition, free of foreign materials and resi-
<br />due.
<br />2. Stir material before application to produce a mixture of uniform density. Stir as required during application.
<br />Do not stir surface film into material. If necessary, remove surface film and strain material before using.
<br />F. Exposed Surfaces: Include areas visible when permanent or built-in fixtures, grilles, convector covers, covers for
<br />finned -tube radiation, and similar components are in place. Extend coatings in these areas, as required, to maintain
<br />system integrity and provide desired protection.
<br />1. Paint surfaces behind movable equipment and furniture the same as similar exposed surfaces. Before final
<br />installation of equipment, paint surfaces behind permanently fixed equipment or furniture with prime coat
<br />only.
<br />2. Paint back sides of access panels and removable or hinged covers to match exposed surfaces.
<br />3. Finish exterior doors on tops, bottoms, and side edges the same as exterior faces.
<br />G. Sand lightly between each succeeding enamel or varnish coat.
<br />H. Scheduling Painting: Apply first coat to surfaces that have been cleaned, pretreated, or otherwise prepared for painting
<br />as soon as practicable after preparation and before subsequent surface deterioration.
<br />1. Omit primer over metal surfaces that have been shop primed and touchup painted.
<br />2. If undercoats, stains, or other conditions show through final coat of paint, apply additional coats until paint film
<br />is of uniform finish, color, and appearance.
<br />I. Application Procedures: Apply paints and coatings by brush, roller, spray, or other applicators according to manufac-
<br />turer's written instructions.
<br />J. Minimum Coating Thickness: Apply paint materials no thinner than manufacturer's recommended spreading rate.
<br />Provide total dry film thickness of the entire systern as recommended by manufacturer.
<br />K. Mechanical and Electrical Work: Painting of mechanical and electrical work is limited to items exposed in equipment
<br />rooms and occupied spaces.
<br />L. Block Fillers: Apply block fillers to concrete masonry block at a rate to ensure complete coverage with pores filled.
<br />M. Prime Coats: Before applying finish coats, apply a prime coat, as recommended by manufacturer, to material that is
<br />required to be painted or finished and that has not been prime coated by others. Recoat primed and sealed surfaces
<br />where evidence of suction spots or unsealed areas in first coat appears, to ensure a finish coat with no burn -through or
<br />other defects due to insufficient sealing.
<br />N. Pigmented (Opaque) Finishes: Completely cover surfaces as necessary to provide a smooth, opaque surface of uni-
<br />form finish, color, appearance, and coverage. Cloudiness, spotting, holidays, laps, brush marks, runs, sags, ropiness,
<br />or other surface imperfections will not be acceptable.
<br />O. Transparent (Clear) Finishes: Use multiple coats to produce a glass -smooth surface film of even luster. Provide a
<br />finish free of laps, runs, cloudiness, color irregularity, brush marks, orange peel, nail holes, or other surface imperfec-
<br />tions.
<br />P. Stipple Enamel Finish: Roll and redistribute paint to an even and fine texture. Leave no evidence of rolling, such as
<br />laps, irregularity in texture, skid marks, or other surface imperfections.
<br />3.2 CLEANING AND PROTECTING
<br />A. At the end of each workday, remove empty cans, rags, rubbish, and other discarded paint materials from Project site.
<br />B. Protect work of other trades, whether being painted or not, against damage from painting. Correct damage by clean-
<br />ing, repairing or replacing, and repainting, as approved by Architect.
<br />C. Provide "Wet Paint" signs to protect newly painted finishes. After complet-nr painting operations, remove temporary
<br />protective wrappings provided by others to protect their work.
<br />1. After work of other trades is complete, touch up and restore damaged or defaced painted surfaces. Comply with
<br />procedures specified in PDCA P 1.
<br />3.3 EXTERIOR PAINT SCHEDULE
<br />A. Concrete, Stucco, and Masonry (Other Than Concrete Unit Masonry):
<br />I . Acrylic Finish: Two finish coats over a primer.
<br />a. Primer: Exterior concrete and masonry primer.
<br />b. Finish Coats: See section 2.4.
<br />B. Concrete Unit Masonry:
<br />1. Acrylic Finish: Two finish coats over a block filler.
<br />a. Block Filler: Concrete unit masonry block filler.
<br />b. Finish Coats: See section 2.4.
<br />C. Mineral -Fiber -Reinforced Cement Panels:
<br />1. Acrylic Finish:Two finish coats over a primer.
<br />a. Primer: Exterior concrete and masonry primer.
<br />b. Finish Coats: See section 2.4.
<br />D. Ferrous Metal:
<br />1. Acrylic Finish Two finish coatsover a rust -inhibitive primer.
<br />a. Primer: Exterior ferrous -metal primer (not required on shop -primed items).
<br />b. Finish Coats: See section 2.4.
<br />E. Zinc -Coated Metal:
<br />I . Acrylic Finish: Two finish coats over a galvanized metal primer.
<br />a. Primer: Exterior galvanized metal primer.
<br />b. Finish Coats: See. section 2.4.
<br />J. Aluminum:
<br />I . Acrylic-Enarnel Finish: Two finish coats over a primer.
<br />a. Primer: Exterior aluminum primer under acrylic finishes.
<br />b. Finish Coats: See section 2.4.
<br />END OF SECTION 09900
<br />SECTION 10200 - LOUVERS AND VENTS
<br />PART 1 - GENERAL
<br />1.1 SUMMARY
<br />A. This Section includes fixed, extruded -aluminum louvers.
<br />1.2 PERFORMANCE REQUIREMENTS
<br />A. Structural Performance: Provide louvers capable of withstanding the effects of gravity loads and wind loads based on
<br />a uniform pressure of 20 lbf/sq. ft., acting inward or outward, without permanent deformation of louver components,
<br />noise or metal fatigue caused by louver blade rattle or flutter, or permanent damage to fasteners and anchors.
<br />B. Thermal Movements: Provide louvers that allow for thermal movements resulting from a temperature change (range)
<br />of 120 deg F, ambient; 180 deg F, material surfaces, by preventing buckling, opening of joints, overstressing of com-
<br />ponents, failure of connections, and other detrimental effects.
<br />C. Air -Performance, Water -Penetration, and Wind -Driven Rain Ratings: As demonstrated by testing manufacturer's
<br />stock units according to AMCA 500-L.
<br />1.3 SUBMITTALS
<br />A. Product Data: For each type of product indicated.
<br />B. Shop Drawings: Include plans, elevations, sections, details, and attachments to other Work.
<br />1. Verify louver openings by field measurements before fabrication and indicate measurements on Shop Draw-
<br />ings.
<br />C. Samples: For each type of finish upon request of Architect.
<br />D. Product test reports verifying compliance with applicable wind loads by testing methods approved by the authority
<br />having jurisdiction..
<br />PART 2 - PRODUCTS
<br />2.1 MANUFACTURERS
<br />A. Available Manufacturers: Subject to compliance with requirements, manufacturers offering products that may be
<br />incorporated into the Work include, but are not limited to, the following:
<br />1. Louvers:
<br />a. Airline Products Co.
<br />b. Cesco Products.
<br />C. Greenheck.
<br />d. Vent Products Company, Inc.
<br />2.2 MATERIALS
<br />A. Aluminum Extrusions: ASTM B 221, alloy 6063-T5 or T-52.
<br />B. Aluminum Sheet: ASTM B 209, alloy 3003 or 5005.
<br />C. Fasteners: Of same basic metal and alloy as fastened metal or 300 Series stainless steel.
<br />2.3 FABRICATION, GENERAL
<br />A. Fabricate frames to fit in openings of sizes indicated, with allowances made for fabrication and installation tolerances,
<br />adjoining material tolerances, and perimeter sealant joints.
<br />B. Join frame members to each other and to louver blades with fillet welds concealed from view.
<br />C. Join frame members
<br />be s to each other and to louver blades with fillet welds, threaded fast
<br />eners, or both, as standard with
<br />louver manufacturer, concealed from view.
<br />2.4 FIXED, EXTRUDED -ALUMINUM LOUVERS
<br />A. Horizontal, Nondrainable-B lade Louver:
<br />1. Basis -of -Design Product: Greenheck ESU or a comparable product of one of the following:
<br />a. Airline Products Co.
<br />b. Cesco Products.
<br />C. Vent Products Company, Inc.
<br />2. Blade Profile: Plain blade without center baffle.
<br />3. Frame and Blade Nominal Thickness: Not less than 0.080 inch.
<br />4. Performance Requirements:
<br />a. Free Area: Not less than 7.5 sq. ft. for 48-inch- wide by 48-inch- high louver.
<br />b. Point of Beginning Water Penetration: Not less than 700 fpm.
<br />C. Air Performance: Not more than 0.10-inch wg static pressure drop at free -area velocity.
<br />2.5 LOUVER SCREENS
<br />A. General: Provide screen at interior face of each exterior louver.
<br />B. Louver Screen Frames: Same kind and form of metal as indicated for louver to which screens are attached.
<br />C. Louver Screening:
<br />1. Bird Screening: Aluminum, 1/2-inch- square mesh, 0.063-inch wire.
<br />2.6 FINISHES
<br />A. Aluminum, High -Performance Organic Finish: Two -coat thermocured system with fluoropolymer coats containing
<br />not less than 70 percent polyvinylidene fluoride resin by weight; complying with AAMA 2605.
<br />1. Color and Gloss: As selected from manufacturer's full range.
<br />PART 3 - EXECUTION
<br />3.1 INSTALLATION
<br />A. Locate and place louvers and vents level, plumb, and at indicated alignment with adjacent work.
<br />B. Use concealed anchorages where possible. Provide brass or lead washers fitted to screws where required to protect
<br />metal surfaces and to make a weathertight connection.
<br />C. Provide perimeter reveals and openings of uniform width for sealants and joint fillers, as indicated.
<br />D. Repair damaged finishes so no evidence remains of corrective work. Return items that cannot be refinished in the field
<br />to the factory, make required alterations, and refinish entire unit or provide new units.
<br />E. Protect galvanized and nonferrous -metal surfaces from corrosion or galvanic action by applying a heavy coating of
<br />bituminous paint on surfaces that will be in contact with concrete, masonry, or dissimilar metals.
<br />END OF SECTION 10200
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