VA 08 90 00-2011 LOUVERS AND VENTS.pdf

1、10-11 08 90 00 - 1 SECTION 08 90 00 LOUVERS AND VENTS SPEC WRITER NOTE: Delete between /-/ if not applicable to project. Also delete any other item or paragraph not applicable in the section and renumber the paragraphs. PART 1 - GENERAL 1.1 DESCRIPTION This section specifies fixed and operable wall

2、louvers, door louvers and wall vents. 1.2 RELATED WORK A. Louvers in steel doors: Section 08 11 13, HOLLOW METAL DOORS AND FRAMES. B. Color of finish: Section 09 06 00, SCHEDULE FOR FINISHESS. C. Louvers in lead lined wood doors: Section 13 49 00, RADIATION PROTECTION. 1.3 SUBMITTALS A. Submit in ac

3、cordance with Section 01 33 23, SHOP DRAWINGS, PRODUCT DATA, AND SAMPLES. B. Shop Drawings: Each type, showing material, finish, size of members, / operating devices, / method of assembly, and installation and anchorage details. C. Manufacturers Literature and Data: Each type of louver and vent. 1.4

4、 APPLICABLE PUBLICATIONS A. The publications listed below form a part of this specification to the extent referenced. The publications are referenced in the text by the basic designation only. B. The Master Painters Institute (MPI): Approved Product List September 2011 C. American Society for Testin

5、g and Materials (ASTM): A167-99(R2009) . Stainless and Heat-Resisting Chromium - Nickel Steel Plate, Sheet, and Strip A1008/A1008M-10 Steel, Sheet, Carbon, Cold Rolled, Structural, and High Strength Low-Alloy with Improved Formability B209/B209M-03(R2007) . Aluminum and Aluminum Alloy, Sheet and Pla

6、te B221-08 Aluminum and Aluminum Alloy Extruded Bars, Rods, Wire, Shapes, and Tubes B221M-07 . Aluminum and Aluminum Alloy Extruded Bars, Rods, Wire Shapes, and Tubes Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 08 90 00 - 2 D. National Asso

7、ciation of Architectural Metal Manufacturers (NAAMM): AMP 500-06 . Metal Finishes Manual E. National Fire Protection Association (NFPA): 90A-09 . Installation of Air Conditioning and Ventilating Systems G. American Architectural Manufacturers Association (AAMA): 2605-11 High Performance Organic Coat

8、ings on Architectural Extrusions and Panels H. Air Movement and Control Association, Inc. (AMCA): 500-L-07 . Testing Louvers PART 2 - PRODUCTS SPEC WRITER NOTE: Make material requirements agree with applicable requirements specified in the referenced Applicable Publications. Update and specify in bo

9、th only that, which applies to the project. 2.1 MATERIALS A. Aluminum, Extruded: ASTM B221/B221M. B. Stainless Steel: ASTM A167, Type 302B. C. Carbon Steel: ASTM A1008/A1008M. D. Aluminum, Plate and Sheet: ASTM B209/B209M. E. Fasteners: Fasteners for securing louvers and wall vents to adjoining cons

10、truction, except as otherwise specified or shown, shall be toggle or expansion bolts, of size and type as required for each specific type of installation and service condition. 1. Where type, size, or spacing of fasteners is not shown or specified, submit shop drawings showing proposed fasteners, an

11、d method of installation. 2. Fasteners for louvers, louver frames, and wire guards shall be of stainless steel or aluminum. F. Inorganic Zinc Primer: MPI No. 19. SPEC WRITER NOTE: Louvers in acid fume areas such as battery rooms, and chlorinate rooms shall be of stainless steel. Verify existence of

12、such spaces with Mechanical and Electrical Engineers. Specify all louvers required or shown, including those shown in connection with mechanical work. 2.2 EXTERIOR WALL LOUVERS A. General: 1. Provide / fixed / and operable / type louvers of size and design shown. Provided by IHSNot for ResaleNo repr

13、oduction or networking permitted without license from IHS-,-,-10-11 08 90 00 - 3 2. Heads, sills and jamb sections shall have formed caulking slots or be designed to retain caulking. Head sections shall have exterior drip lip, and sill sections an integral water stop. 3. Furnish louvers with sill ex

14、tension or separate sill as shown. 4. Frame shall be mechanically fastened or welded construction with welds dressed smooth and flush. SPEC WRITER NOTE: Percent free area, free area velocity, pressure drop and amount of water passage for insertion in following paragraph shall be obtained from Mechan

15、ical Engineer. B. Performance Characteristics: 1. Weather louvers shall have a minimum of _ percent free area and shall pass _ mm/s (fpm) free area velocity at a pressure drop not exceeding _ mm (inch) water gage and carry not more than _ g (ounces) of water per m (square foot) of free area for 15 m

16、inutes when tested per AMCA Standard 500-L. 2. Louvers shall bear AMCA certified rating seals for air performance and water penetration ratings. C. Aluminum Louvers: SPEC WRITER NOTE: Consult Mechanical Engineer to determine if standard or drainable type blades are required. 1. General: Frames, blad

17、es, / sills / and mullions (sliding interlocking type); 2 mm (0.081-inch) thick extruded aluminum. Blades shall be / standard / or / drainable / type and have reinforcing bosses. 2. Louvers, fixed: Make frame sizes 13 mm (1/2-inch) smaller than openings. Single louvers frames shall not exceed 1700 m

18、m (66 inches) wide. When openings exceed 1700 mm (66 inches), provide twin louvers separated by mullion members. 3. Louvers, operable: Louver frame opening sizes, single louver sizes and mullion requirements shall be as specified for fixed louvers. a. Blades: Attach blades to frame with aluminum piv

19、ot pins through nylon bearings. Fasten each blade to stainless steel operation arms that are connected to minimum 3 mm (1/8-inch) thick stainless steel operating / bar / handle / arranged for simultaneous operation of blades. /b. Spring/chain operation: Exposed operator activated by spring attached

20、to operating / bar / handle / and mounted on frame. /Control of louver shall be by pull chain of required length to be operable from floor. Provide pulleys and brackets as required./ Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 08 90 00 - 4

21、/c. Hand crank operation: Hand crank operator activated by case hardened gears concealed in aluminum housing. Operators shall be removable and located at jambs. Provide one right-handed operator for each louver. / /d. Motor operation: Motor operated by approved electric motor. Motors shall be remova

22、ble and located at jambs of louver. Connect motor operator lever arm to operating bar by means of stainless steel connecting rod. / /e. Automatic operation: Louvers shall be complete with / weights, / pull chain, / chain holder and brackets, / cables, / sheaves, / spring, / 70C (160F) fusible link,

23、/ and other related items meeting requirements of NFPA 90A. Provide non-ferrous bearings and spindles of replaceable type. /Control of louver shall be by pull chain of required length to be operable from floor. / Louvers shall close automatically in case of fire. / D. Stainless Steel Louvers: From s

24、tainless steel louvers using 1.6 mm (0.063-inch) thick sheet for frames, blades, sills and mullions. 1. Louver shall have fixed 45 degree / standard / drainable / blades with water baffle. Make overall frame size 13 mm (1/2-inch) less than opening, unless otherwise shown. 2. Single louver sections s

25、hall not exceed 1700 mm (66 inches) in width. For openings larger than 1700 mm (66 inches) wide, provide multiple sections not larger than 1700 mm (66 inches) wide separated by mullions. 2.3 CLOSURE ANGLES AND CLOSURE PLATES A. Fabricate from 2 mm (0.074-inch) thick stainless steel or aluminum. B. P

26、rovide continuous closure angles and closure plates on inside head, jambs and sill of exterior wall louvers. C. Secure angles and plates to louver frames with screws, and to masonry or concrete with fasteners as specified. 2.4 WIRE GUARDS A. Provide wire guards on outside of all exterior louvers, ex

27、cept on exhaust air louvers. B. Fabricate frames from / 2 mm (0.081-inch) thick extruded or sheet aluminum / 1.5 mm (0.059-inch) thick stainless steel / designed to retain wire mesh. C. Wire mesh shall be woven from not less than / 1.6 mm (0.063-inch) diameter aluminum wire / 1.3 mm (0.05-inch) diam

28、eter stainless steel wire / in 13 mm (1/2-inch) square mesh. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 08 90 00 - 5 D. Miter corners and join by concealed corner clips or locks extending about 57 mm (2-1/4 inches) into rails and stiles. E

29、quip wire guards over four feet in height with a mid-rail constructed as specified for frame components. E. Fasten frames to outside of louvers with aluminum or stainless steel devices designed to allow removal and replacement without damage to the wire guard or the louver. 2.5 EXTERIOR DOOR LOUVERS

30、 A. Fabricate of 1.6 mm (0.063-inch) thick extruded aluminum. Miter frames at corners and join by concealed corner brackets. B. Equip louvers on outside with wire guards, except omit wire guards for louvers in doors located completely below enclosed areaways. 2.6 INTERIOR DOOR LOUVERS A. Fabricate l

31、ouvers for interior doors / and partitions of / 1.2 mm (0.0478-inch) thick steel / 1.6 mm (0.063-inch) thick extruded aluminum/. B. Make louvers sight-proof type with stationary blades, / except where light-proof louvers are required./ /C. Lightproof louvers shall have stationary blades and be desig

32、ned to exclude passage of light but permit free ventilation. / 2.7 WALL VENTS A. Fabricate exterior wall vents from either 4.7 mm (0.187-inch) thick aluminum plate of 6 mm (1/4-inch) thick cast iron, perforated in diamond lattice pattern, with not over 19 mm (3/4-inch) openings. B. Vents shall have

33、aluminum screen frame with aluminum alloy insect screening mounted on back of vent by means of 19 mm x 5 mm (3/4-inch by 3/16-inch) top and bottom bars screwed to grille. C. Vent Frames In Masonry: Fabricate of 45 mm x 30 mm x 5 mm (1-3/4 inch by 1-1/4 inch by 3/16-inch) steel angles bolted with 6 m

34、m (1/4-inch) diameter expansion bolts at jambs. 2.8 AIR INTAKE VENTS A. Fabricate exterior louvered wall ventilators for fresh air intake for air conditioning units from extruded aluminum, ASTM B221. Form with integral horizontal louvers and frame, with drip extending beyond face of wall and integra

35、l water stops. B. / Provide aluminum closures where shown for inside face of dummy vents./ C. Provide 0.8 m (0.032-inch) thick aluminum sleeves / in cavity walls / where shown /. Provided by IHSNot for ResaleNo reproduction or networking permitted without license from IHS-,-,-10-11 08 90 00 - 6 2.9

36、BRICK VENTS A. Vents shall be of size shown formed of approximately 3 mm (0.125 inch) thick cast aluminum, or 3 mm (0.125) inch extruded aluminum. B. Provide vents complete with aluminum screen frame with corrosion resistant insect screening mounted on back of vent. C. Provide vents with required an

37、chors. SPEC WRITE NOTE: On most projects, specify finish of aluminum by using description, do not use Aluminum Associations designation. If more than one finish is used on project, precede finish spec with “Finish for (list items):“ 2.10 FINISH A. In accordance with NAAMM Metal Finishes Manual: AMP

38、500-505 B. Aluminum Louvers / Air Intake Vents / Wire Guards /: 1. Anodized finish a. /AA-M1X/ Mill finish, as fabricated. b. /AA-C22A41/ Chemically etched medium matte, with clear anodic coating, Class I Architectural, 0.7 mils thick./ c. /AA-C22A42 / Chemically etched medium matte, with integrally

39、 colored anodic coating, Class I Architectural, 0.7 mils thick./ NOTE: /AA-C22A44 / Chemically etched medium matte, with electronically deposited metallic compound, Class I Architectural, 0.7 mils thick may be provided as an option for /AA-C22A42 / color anodic coating. Dyes will not be accepted./ 2

40、 Organic Finish: AAMA 2605 (Fluorocarbon coating). C. Aluminum / Wall Vents / and Brick Vents /: Sand blasted satin finish. D. Stainless Steel: Mechanical finish No. 4 in accordance with NAAMM Metal Finishes Manual. E. Sheet Steel: Baked-on or oven dried shop prime coat. 1. Paint interior surfaces

41、of lightproof louvers with two additional finish shop coats of baked-on flat black enamel. 2. Finish painting of exposed surfaces of shop primed louvers is specified in Section 09 91 00, PAINTING. F. Steel: Surfaces of steel work, for which no other finish is specified, shall be cleaned free from sc

42、ale, rust, oil and grease, and then given a light colored prime paint after fabrication, except ferrous metals concealed in finished work. Paint all contact surfaces of assembled work (except welded contact surfaces) with an additional shop coat of similar paint. Provided by IHSNot for ResaleNo repr

43、oduction or networking permitted without license from IHS-,-,-10-11 08 90 00 - 7 2.11 PROTECTION A. Provide protection for aluminum against galvanic action wherever dissimilar materials are in contact, by painting the contact surfaces of the dissimilar material with a heavy coat of bituminous paint

44、complete coverage), or by separating the contact surfaces with a performed synthetic rubber tape having pressure sensitive adhesive coating on one side. B. Isolate the aluminum from plaster, concrete and masonry by coating aluminum with zinc-chromate primer. C. Protect finished surfaces from damage

45、 during fabrication, erection, and after completion of the work. / Strippable plastic coating on / colored anodized / organic / finish is not approved./ PART 3 - EXECUTION 3.1 INSTALLATION A. Set work accurately, in alignment and where shown. Items shall be plumb, level, free of rack and twist, and

46、set parallel or perpendicular as required to line and plane of surface. B. Furnish setting drawings and instructions for installation of anchors and for the positioning of items having anchors to be built into masonry construction. Provide temporary bracing for such items until masonry is set. C. Pr

47、ovide anchoring devices and fasteners as shown and as necessary for securing louvers / and vents / to building construction as specified. Power actuated drive pins may be used, except for removal items and where members would be deformed or substrate damaged by their use. D. Generally, set wall louv

48、ers / and vents / in masonry walls during progress of the work. If wall louvers / and vents / are not delivered to job in time for installation in prepared openings, make provision for later installation. Set in cast-in-place concrete in prepared openings. 3.2 CLEANING AND ADJUSTING A. After install

49、ation, all exposed prefinished and plated items and all items fabricated from stainless steel and aluminum shall be cleaned as recommended by the manufacturer and protected from damage until completion of the project. B. All movable parts, including hardware, shall be cleaned and adjusted to operate as designed