Loading...
HomeMy WebLinkAboutx2 MWTP Specifications (Selected Sections) SECTION 07311 COMPOSITION SHINGLE ROOFING PART 1 - GENERAL 1.01 SUMMARY A. Section Includes: 1. Heavy weight,granular surfaced asphalt shingle roofing. 2. Moisture shedding underlayment,eave,valley and ridge protection. 3. Associated metal edge flashing. B. Products Installed But Not Supplied Under This Section: I. Section 07600: Flashing and Sheet Metal- Sheet Metal Flashings built into the shingle roofing system. 2. Section 07700: Roof Hatches and Skylights- Skylight and Roof Hatch curb flashing. 3. Section 09900: Painting -Prime coat painting of sheet metal flashings,roof jacks and other sheet items built into the shingle roofing system. C. Related Sections: 1. Section 06250—Carpentry and Cabinet Work: Plywood and wood nailers. 1.02 REFERENCES A. American Society for Testing Materials(ASTM): 1. D 226 Standard Specification for Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing. 2. D 228 -Method of Testing Asphalt Roll Roofing, Cap Sheet and Shingles 3. D 1970- Standard Specification for Self-Adhering Polymer Modified Bituminous Sheet Materials Used as Steep Roofing Underlayment for Ice Dam Protection. 4. D 3018 Standard Specification for Class A Asphalt Shingles Surfaced with Mineral Granules. 5. D 3161 Standard Test Method for Wind-Resistance of Asphalt Shingles. 6. D 3462 Standard Specification for Asphalt Shingles from Glass Felt and Surfaced with Mineral Granules. 7. D 3462 Shingles Made from Glass Felt and Surfaced with Mineral Granules Asphalt. 8. D 4869 Standard Specification for Asphalt-Saturated Organic Felt Shingle Underlayment Used in Roofing. 9. D 4586 Asphalt Roof Cement,Asbestos-Free. 10. D 6380 Standard Specification for Asphalt Roll Roofing (Organic Felt) 11. E 108 Standard Test Methods for Fire Tests of Roof Coverings. B. Underwriters Laboratories(UL): 1. UL 790— Class A Fire Resistance of Roof Covering Materials. 2. UL 997-Tests for Wind Uplift Resistance of Roof Assemblies. Final 016059.02 ©KJ 2002 07311 - 1 Composition Shingle Roofing 1.03 SUBMITTALS A. Submit in accordance with Division 01300. B. Product Data: Provide data indicating all material characteristics, and performance criteria. C. Shop Drawings: Indicate metal flashing,jointing methods and locations,fastening methods and locations, and installation details. D. Samples: Manufacturers color board of complete product line,followed by two full size shingles of each of three initial selections. E. Manufacturer's Installation Instructions: Indicate preparation required and installation procedures. F. Manufacturer's Certificate: Certify that products meet specified requirements. 1.04 QUALITY ASSURANCE A. Installers Qualifications: At least five years of experience installing asphalt shingle roofing systems. B. Regulatory Requirements: Conform to applicable testing agency and regulatory requirements for a UL Class A Fire and Wind Label Roof System. C. Regulatory Requirements. Comply with the following: 1. Uniform Building Code, 1997 edition as amended by State of Washington State Building Code, State-Wide Amendments,2000 edition and especially Chapter 15. 1.05 SYSTEM DESCRIPTION A. Uniformity: Shingles shall be from a single manufacturer. B. Performance Requirements: Provide a complete weathertight roofing assembly that is manufactured,fabricated and installed to withstand specified loads and requirements in the UBC, and to maintain performance criteria stated by manufacturer without defects,damage or failure. C. Wind Loads: Design roof assembly to resist 110 pounds uplift per UL 997. 1.06 DELIVERY, STORAGE,AND HANDLING A. Deliver products in manufacturer's original containers, dry,undamaged,with seals and labels intact. B. Store Materials on pallets or wood platforms elevated above the ground. Cover materials and protect from the rain and sun. Final 016059.02 ©KJ 2002 07311 -2 Composition Shingle Roofing 1.07 PROJECT CONDITIONS A. Environmental Requirements: Install in accordance with manufacturer's requirements. Do not install shingles when ambient,or wind chill temperatures are below 50 degrees F. B. Existing Conditions: Inspect substrate.Have unsatisfactory conditions corrected before proceeding. 1.08 WARRANTY/GUARANTEE A. Provide a Manufacturer's standard 50 year(minimum) Labor and Material Limited Warranty. B. Special Guarantee: Provide a written Special Guarantee in accordance with Section 01700 signed by the roofing installer and the Contractor for a five year period for all work done under this Section. Provide coverage for: repair or replacement of work that leaks or shows signs of failure. Include repair or replacement of other work done under this contract damaged as a result of leaks or failure of this work, and removal,replacement and repair of other work required by the repair or replacement of this work. Warranty shall include all labor and materials and shall not be prorated. PART 2 PRODUCTS 2.01 ACCEPTABLE MANUFACTURERS AND PRODUCTS-ASPHALT SHINGLES A. Elk Corporation of Texas,Prestique Plus High Definition shingles B. GAF Materials Corporation, Grand Canyon Shingles C. Cetainteed,Presidential Shake TL AR D. Or equal. 2.02 ASPHALT SHINGLE A. Asphalt Shingles: 1. Manufactured by Elk 2. Fiberglass base,mineral granule-surfaced type,two-ply or three ply laminated. 3. ASTM D 3018, Class A with Type I self-sealing with UL Rating of A and Wind Resistance Label 4. Weight: 450 to 480 pounds per 100 square feet. 5. Five (5)inch nominal exposure. 6. Algae and Stain inhibitor: StainGuard by Elk or equal. 7. Color: As selected by Owner from manufacturer's standard colors. 8. Shingles shall meet the requirements of ASTM D 3462,AC127, ICBO 9ER-5414. Final 016059.02 ©KJ 2002 07311 - 3 Composition Shingle Roofing 2.03 SHEET MATERIALS A. Elastomeric Underlayment: Eave Protection: 36 inch wide laminated,rubberized, self-stick asphalt sheet,having internal reinforcement,45 -60 mil total thickness,meeting the requirements of ASTM D 1970. Provide with appropriate primers as recommended by manufacturer.provide material with warranty equal in duration to that of shingles being applied.Acceptable Products; CertainTeed "WinterGuard"; W.R.Grace,Ice and Snow Shield,or equal. B. Underlayment: No. 30 asphalt felt.Meeting ASTM D 4869,Type II,non-perforated asphalt-saturated organic felts as recommended for use in roofing and waterproofing. 2.04 ACCESSORIES A. Nails: Standard round wire shingle type,hot dipped galvanized, 3/8 inch to 7/16 inch diameter head, 1 I to 12 gauge barbed shank roofing nails,of sufficient length to penetrate through roof covering and 3/4 inch into roof deck lumber or penetrate full depth of the plywood roof deck. B. Plastic Cement: ASTM D4586: Roof Cement;plastic asphalt type with mineral fiber components, free of toxic solvents,W.R.Grace or equal. 2.05 FLASHING MATERIALS A. Sheet Flashing: 24 gage thick minimum and thicker where specified or noted on the Drawings.,in accordance with Section 07600—Flashing and Sheetmetal . B. Drip Edge: Corrosion resistant material,2 inch by 2 inch,26 gauge minimum, stainless steel sheetmetal,hug edge nosing. C. Nails: Standard round wire roofing type,hot dip galvanized,minimum 19/64 inch head diameter and 0.104 inch shank diameter; and of sufficient length to penetrate through roof covering and 3/4 inch into roof deck lumber or penetrate full depth of the plywood substrate. PART 3 EXECUTION 3.01 EXAMINATION A. Verify that all flashings,nosings,roof jacks and other sheetmetal items that will be built into the roof system are prime coat painted on all concealed and exposed surfaces under Section 09900. B. Verify that roof penetrations and plumbing stacks are in place and flashed to deck surface. C. Verify roof openings are correctly framed prior to installing work of this Section. D. Verify deck surfaces are dry,free of ridges,warps,or voids. Final 016059.02 ©KJ 2002 07311 -4 Composition Shingle Roofing 3.02 PREPARATION A. Broom clean deck surfaces prior to installing eave protection and underlayment. 3.03 INSTALLATION-EAVE PROTECTION A. Apply Eave Protection underlayment at eave and valley areas in accordance with manufacturer's instructions. B. Extend Eave Protection from roof perimeters to 2 feet inside interior wall line,including rake areas. Provide 6-inch side and end laps at eave and valley locations. Stagger end laps of consecutive layers 12 inches. 3.04 INSTALLATION-PROTECTIVE UNDERLAYMENT A. Place two layers of Number 30 underlayment over deck surface,lapping each course 18 inches. Lap ends minimum 6 inches. Stagger end laps of each consecutive layer. Nail in place. Lap underlayment 12 inches onto valley flashing. Lap underlayment 6 inches each side over ridges and hips. B. Weather lap and seal watertight with plastic cement,items projecting through or mounted on roof. C. When using eave protection, start underlayment above eve protection,lapping underlayment 12 inches over eave protection. 3.05 INSTALLATION-METAL NOSINGS A. Install metal nosings or self-flashing gutters on eave edges of the roof directly on the plywood deck and under the underlayment or eave protection. B. Install metal nosings on the rake edges of the roof on top of the underlayment. 3.06 INSTALLATION-CURB FLASHING A. Install a 12-inch wide strip of eave protection along all intersections between the roof surface and a vertical curb or similar surface. Turn the eave protection up 4 inches on the vertical surface. B. At the rake (side)intersection of a sloped surface and a vertical surface install flashing shingles 5 inches by 5 inches by 10 inches under and 1/2 inch behind the front edge of each course of asphalt shingles.Embed step shingles in plastic cement. C. Cover top of step flashing with metal counter flashing. 3.07 INSTALLATION- COMPOSITION SHINGLES A. Install shingles in accordance with manufacturer's instructions. Final 016059.02 ©KJ 2002 07311 -5 Composition Shingle Roofing B. Start at the bottom edge with a double starter course. Project first course of shingles 3/8 inch beyond fascia boards.Apply shingles at the exposure required for double coverage with a 2-inch head lap. C. Cap hips and/or ridges with individual ridge shingles,maintaining 5-inch weather exposure. Set each ridge shingle in a full bed of plastic cement. Two nails minimum per shingle. Space nails so they are concealed by the next shingle. D. Coordinate installation of roof mounted components or work projecting through roof with weathertight placement of counter flashing. Lace shingles to flanges of sheetmetal roof jacks and flashing cones and seal with plastic cement. Lap shingles over the upper flange of the flashing cone base and under the lower flange. E. Complete installation to provide weathertight service. 3.08 FIELD QUALITY CONTROL A. Field inspection is required at the completion of underlayment installation and periodically during the installation of shingles,ridge shingles,flashings and counter flashings. 3.09 CLEAN UP A. Replace damaged shingles. B. Remove exposed plastic cement and plastic cement stains. 3.10 PROTECTION OF FINISHED WORK A. Do not permit traffic over finished roof surface. END OF SECTION Final 016059.02 ©KJ 2002 07311 - 6 Composition Shingle Roofing SECTION 07600 FLASHING AND SHEET METAL PART 1 - GENERAL 1.01 SUMMARY A. Section Includes: 1. Galvanized steel sheet metal flashing,counterflashing,copings,expansion joints, and 2. Aluminum gutters and rainwater leaders 3. Stainless Steel Sample Sink 4. All other sheet metal work not covered in other sections. B. Related Sections: 1. Section 06250 - Carpentry and Cabinet Work: Plywood and wood nailers 2. Section 07311 - Composition Shingle Roofing 3. Section 07700 - Roof Hatches and Skylights: Roof hatch and skylight curbs 4. Section 07900 - Sealants 5. Section 09900 - Painting: backpriming sheet metal work 6. Section 10200 - Louvers: aluminum louvers 7. Section 12347 - Metal Laboratory Casework 8. Section 15400 - Plumbing: vent piping through roof 9. Section 15800 - Heating,Ventilating and Air Conditioning 1.02 REFERENCES A. American Society for Testing and Materials,ASTM: 1. A240 Standard Specification for Chromium and Chromium-Nickel Stainless Steel Plate, Sheet, and Strip for Pressure Vessels and for General Applications 2. A653 Specification for Steel Sheet,Zinc-Coated (Galvanized)or Zinc-Iron Alloy-Coated (Gavannealed)by the Hot-Dip Process 3. B32 Standard Specification for Solder Metal 4. B370 Standard Specification for Copper Sheet and Strip for Building Construction B. "Architectural Sheet Metal Standards" by Sheet Metal and Air Conditioning Contractors National Association(SMACNA),latest edition. C. Uniform Building Code (UBC)with 2000 State of Washington Amendments 1.03 SUBMITTALS A. Submit in accordance with Section 01300. B. Product Data: Fully describe all manufactured items to be furnished. 95%Submittal 016059.02 ©KJ 2002 07600-1 Flashing and Sheet Metal C. Shop Drawings: Show all custom-fabricated items clearly illustrating the design, dimensions,materials,methods of construction and installation of each piece of work. D. Manufacturers'Instructions: For manufactured items. 1.04 QUALITY ASSURANCE A. Comply with Uniform Building Code (UBC)with 2000 State of Washington Amendments, especially Chapters 15 and 25. B. Where specific details are not provided comply with applicable details in the SMACNA Architectural Sheet Metal Standards. 1.05 PRODUCT DELIVERY, STORAGE AND HANDLING A. Deliver all items to the job site unpainted and in sufficient time for field priming and incorporation into work of other trades. B. Store materials under dry conditions and protect from moisture and physical damage. PART2 -PRODUCTS 2.01 MATERIALS A. Sheet Steel: Copper bearing,26-gauge or heavier where noted;hot dip galvanized complying with ASTM A653, G90 Commercial Class 1.25 ounce. B. Aluminum: 6061-T6 alloy, 0.064-inch thick or heavier where noted. C. Copper: Cold-rolled,meeting ASTM B370, 16 ounce or heavier where noted. D. Stainless Steel: Type 304,2D finish unless a higher polish is called for,ASTM A-240, 18 gauge at Sample Sink number 2,26-gauge elsewhere unless a heavier gauge is specified or indicated on the Drawings. E. Solder: ASTM B32,low lead solder. Use special solder for stainless steel. F. Flux: Noncorrosive. G. Fasteners: 1. To Concrete Masonry Units: Deformed steel wedge pins driven into lead expansion shields; RAWL,Phillips,or equal. 2. To Wood Nailers and Sills: Pan head,noncorrosive, sheet metal screws. 3. Component Fasteners: Self-drilling/self-tapping, stainless steel screws,type 5-12, Buildex TEKS;Gosche Fasteners; or equal. H. Flashing: 1. Flashing and Counterflashing: 26-gauge,minimum,galvanized steel formed to insure a tight seal and lapped, soldered and riveted. 95%Submittal 016059.02 ©KJ 2002 07600-2 Flashing and Sheet Metal L Flashing Reglets and Counterflashing: 1. Surface Type Reglet: 26-gauge,minimum,galvanized steel stainless steel drive pins and neoprene washer,Fry Sprinklok Expan-O-Seal; Superior Cushion-Lock; or equal. 2. Counterflashing: 26-gauge,minimum,galvanized steel formed to insure a tight seal against both reglet and roofing felts,Fry Springlok Flashing; Superior Cushion-Lock; or equal. J. Seamless aluminum gutters and rainwater leaders(downspouts): 0.032 aluminum box gutter, size as shown. Rainwater leaders shall be fabricated from 3 inch diameter schedule 40 pipe.Factory finish gutters and rainwater leaders with a coating consisting of pretreatment plus a baked on primer and finish coat. K. Sealant: Polyurethane sealant type "A" in accordance with Section 07900. Where specified sealant is incompatible with other adjacent sealants,Contractor shall submit a sealant suitable for intended use and of equivalent life expectancy. 2.02 FABRICATION A. Before fabrication,take field measurements, ascertain existing field conditions and have discrepancies corrected before proceeding with sheet metal work. B. Fabricate sheet metal items in the shop to the greatest extent possible. Fabricate using techniques and methods described in the SMACNA Architectural Sheet Metal Standards. C. Make sections uniform with true, straight breaks,accurately fitted and rigidly secured. Provide overlapping tabs for soldered joints. Fabricate items in maximum lengths. D. Provide accessories necessary to complete installation. Provide ribs,cleats, stiffeners, sleeves,hangers and other reinforcements required to make sections rigid and substantial,in same metal as basic unit. E. Miter corner joints and reinforce with extended tabs or backing plates. F. Soldering: All soldered joints shall lap at least 1-inch. Pre-tin and sweat-solder joints full width. Reinforce all soldered joints with metal rivets. Do not solder aluminum. G. Lap expansion joints at least 4 inches and seal with polyurethane sealant type "B". 2.03 SAMPLE SINK FABRICATION A. Custom size and fabrication as indicated in Section 12347. B. Material: 18 gauge stainless steel C. Lip: Provide continuous self-sealing 3/4 inch wide by 1/8 inch high horizontal lip on all sides of the sink. D. Fasteners: Stainless steel.Fasteners shall remain hidden. Connect the sink to the countertop from the underside of the countertop.Use a 18 gauge minimum stainless steel continuous 95%Submittal 016059.02 ©KJ 2002 07600-3 Flashing and Sheet Metal angle (provide gaps for faucet installation)welded to the sides of the sink. Shim and screw the angle to the underside of the countertop at 12 inches on center maximum. E. Fabrication: 1. Bend inside bottom corners of bowls with a'/z inch radius.All other edges shall be eased or a minimum of 1/8 inch radius. 2. Fully weld all joints and corners,grind flush and smooth.Finish on all joints shall match the sink finish. 3. Fabricate recessed holes for drain fittings, so that the drain lip is flush with or slightly recessed in bottom of the sink bowl. F. Finish: Satin Stainless steel,US32D(630). G. Sound Deadening Coating: Spray on '/4 inch thick automotive asphalt-based undercoating on the underside of the sink bowl after installation. PART 3 -EXECUTION 3.01 INSPECTION A. Examine surfaces to receive sheet metal work for defects that will adversely affect the execution and quality of the work. B. Do not start work until all unsatisfactory conditions are corrected. C. Insure that all wood nailers have been properly installed. D. Insure that all galvanized sheet metal items are prime coat painted on all concealed and exposed surfaces,under Section 09900,before installation. 3.02 WORKMANSHIP A. All work shall be watertight and shall drain properly. B. Make proper allowance for expansion and contraction of the metals and of the materials to which they are fastened. C. Form work accurately to sizes, shapes, and dimensions indicated or necessary,with angles and lines in true alignment, straight and sharp. D. Erect work plumb,level and in proper plane,without bulges,or waves. Fit metal closely and neatly to cores or framework. Cope or flange intersections to fit accurately. Reinforce heavily loaded joints with screws or rivets. E. Soldering: Pre-tin and apply flux to surfaces of sheet metal. Slowly and thoroughly apply heat to completely sweat the solder through the full width of seam. F. Set items in sealant or plastic cement as shown or noted; or when such application is necessary to provide a watertight job. 95%Submittal 016059.02 ©KJ 2002 07600-4 Flashing and Sheet Metal G. Provide isolation between dissimilar metals or other materials with sealant,butyl tape, bituminous paint or asphalt saturated felt. H. Perform sealant work in conformance with the requirements of Section 07900. 3.03 FLASHING A. Install all Flashings as required to provide watertight protection. B. Lap all seams in direction of water flow. C. Carry Flashings around corners at least 4 inches. D. Lap joints 4 inches minimum. Apply sealant to the overlapping surfaces of the joints. 3.04 INSTALLATION A. Flashing at Curbs and Similar Rectangular Projections Through Roof: 1. Provide 24-gauge galvanized steel Counterflashings. Fold Flashings at least 4 inches around corners and lap in the direction of water or wind. 2. Provide a shop fabricated saddle Flashing (cricket) at the uphill side of skylights installed in roofs sloping more than 1/4-inch per foot. 3. Lap end joints 4 inches and seal with sealant. B. Seamless Aluminum Rainwater Gutters and Rainwater Leaders(Downspouts): L Install gutters along roof edge using stainless steel fasteners. Seal joints in accordance with manufacturer's recommendations. 2. Install rainwater leaders with all related fittings. Connect downspouts to rain gutters where shown using special gutter fittings with downspout sleeve. Seal all joints. Attach to building with matching prefinished straps and stainless steel fasteners. 3. Attach to building with straps matching the downspouts. C. Roof Flashing: 1. Provide reglets and 24-gauge galvanized Counterflashing at all curbs and where shown. 2. Lap joints 3 inches minimum. Lap,miter, and solder at corners. 3. Apply sealant to the top of surface mounted reglets. D. Provide sill and head Flashing at all louvers as shown and as required for a watertight installation. Furnish in the same metal as the louver. Louvers are specified in Section 10200. E. At Vent Pipes Through Roof: 1. Provide a 24-gauge galvanized steel conical Flashing collar with roll-formed bottom flange soldered to 24-gauge base Flashing. The base Flashing shall extend 8 inches minimum from the base of the conical collar all around. 2. Provide a separate Counterflashing collar for the top of the vent pipe. F. Flashing at Round Ducts, Conduits, and Other Pipe Through Roof: 1. Provide a conical Flashing collar same as for vent pipes. 95%Submittal 016059.02 ©KJ 2002 07600-5 Flashing and Sheet Metal 2. Provide a separate Counterflashing collar over the conical collar. Use a stainless steel draw band to fasten top of Counterflashing around the pipe or conduit. Embed Counterflashing in a 2-inch-wide bed of sealant and apply a large bead of sealant to the top exposed edge. G. Provide flashing where shown and where required for a watertight installation. 3.05 CLEANUP A. Clean all finished surfaces,removing all solder,flux,etc. Neutralize soldering flux with a 5 to 10 percent washing soda solution,wash down all work with soap and hot water,flush with clean water, and wipe dry. B. Repair or replace all damaged or defective areas to insure water tightness and neat appearance. END OF SECTION 95%Submittal 016059.02 ©KJ 2002 07600-6 Flashing and Sheet Metal SECTION 07700 ROOF HATCHES AND SKYLIGHTS PART 1 -GENERAL 1.01 SUMMARY A. Section Includes: 1. Skylight Roof Hatches. 2. Fixed Skylights. B. Related Sections: 1. Section 07311: Composition Shingle Roofing 2. Section 07600: Flashing and Sheet Metal 1.02 REFERENCES A. Aluminum Association(AA): 1. Specifications for Aluminum Structures. B. American Architectural Manufacturers Association(AAMA): 1. 1600 Voluntary Specification for Skylights 2. 2603-98 Voluntary Specification,Performance Requirements and Test Procedures for High Performance Organic Coatings on Aluminum Extrusions and Panels. 3. 2604-98 Voluntary Specification for High Performance Organic Coatings on Architectural Extrusions and Panels. 4. 611-98 Specification for Anodized Architectural Aluminum. 5. 1605.1 Voluntary Standard Uniform Load Test Procedure for Plastic Glazed Skylights by Uniform Static Air Pressure Difference. C. American Society for Testing and Materials,ASTM: I. D4802 Specification for Poly(Methyl Methacrylate)Acrylic Plastic Sheet. 2. E283 Test Method for Rate of Air Leakage Through Exterior Windows,Curtain Walls and Doors. 3. E330 Test Method for Structural Performance of Exterior Windows,Curtain Walls and Doors by Uniform Static Air Pressure Difference. 4. E331 Test Method for Water Penetration of Exterior Windows, Curtain Walls and Doors by Uniform Static Air Pressure Difference. D. National Roofing Contractors Association(NRCA): 1. Roofing and Waterproofing Manual. Final 016059.02 ©KJ 2002 07700- 1 Roof Hatches and Skylights 1.03 SUBMITTALS A. Submit in accordance with Section 01300: 1. Product Data: Fully describe all standard manufactured items. Give detailed information on materials,finishes,construction,manufacture,function,performance and installation. 2. Shop Drawings: Show materials,details of construction, finishes,operation, accessories,joints and connections and other information to fully describe the work proposed. 3. Manufacturer's Warranty: 5-year warranty manufacturer's standard warranty. 1.04 QUALITY ASSURANCE A. Regulatory Requirements. Comply with the following: 1. Uniform Building Code, 1997 edition with State of Washington 2000 Amendments especially Chapters 24 and 26. B. Trade Association Standards. Comply with applicable portions of the following: 1. Architectural Metals published by the National Association of Architectural Metal Manufacturers(NAAMM). C. Pre-installation Meeting 1. Conduct pre-installation meeting with General Contractor,Roofing contractor and Owner to verify project requirements, substrate conditions,manufacturer's installation instructions, and manufacturer's warranty requirements. Comply with Division 1 Project Management and Coordination(Project Meetings) Section. 1.05 SYSTEM DESCRIPTION A. Uniformity: Skylight roof hatches and skylights and shall be from a single manufacturer. B. Performance Requirements: Provide skylight roof hatches and skylights that have been manufactured,fabricated and installed to withstand specified loads and requirements in the UBC, and to maintain performance criteria stated by manufacturer without defects,damage or failure. C. Skylight Roof Hatches and Skylights 1. Conform to recommendations of the AA Specifications for Aluminum Structures and AAMA Publications as applicable to products specified: AAMA 2603-98, 611-98 and 1605.1. 2. Fabrication and installation of unit skylights shall comply with the UBC. 3. Vertical and Wind Loads: Design units for 40 pounds per square foot(psf)vertical load plus dead loads.Unit shall be shall be designed to resist 30 psf wind load. Final 016059.02 ©KJ 2002 07700-2 Roof Hatches and Skylights 1.06 WARRANTY A. Manufacturer's Warranty: 1. Skylight and skylight roof hatch Warranty: Provide written warranty signed by manufacturer, agreeing to repair or replace work that exhibits defects in materials or workmanship and guaranteeing weather tight and leak free performance. "Defects" is defined as uncontrolled leakage of water and abnormal aging or deterioration. 2. Warranty Period: 5 years commencing on date of substantial completion. 1.07 SPECIAL GUARANTEE A. Furnish a written Special Guarantee in accordance with Section 01700 signed by the General Contractor extending the guarantee in Division 1 to a period of two years for work done under this Section. The guarantee shall include all labor and material, and shall not be prorated. The Special Guarantee shall cover the following items: 1. Provide for the repair or replacement of work installed in this Section that leaks or shows other signs of failure. 2. Failure of operating mechanisms. 3. Failure or chalking of finish 4. Visible UV degradation or clouding of the skylight dome. 5. Repair or replace adjoining work necessitated by repair or damage from the defects above. PART2 -PRODUCTS 2.01 SKYLIGHT ROOF HATCHES A. Manufacturer: Naturalite Skylight Systems,The Vistawall Group.; or equal. B. Product and Model: Double domed,openable, skylight roof hatch with self-flashing integral curb.Naturalite SFST,or equal. C. Product Description 1. The skylight roof hatches shall be factory assembled units,each consisting of a 2 -3/4" double-faced fiberglass reinforced polyester panel with chemically and thermally bonded DuPont TedlarO and an extruded aluminum frame. Thermalized frame shall have poured and debridged polyurethane thermal break without weep holes to prevent condensation on interior portion of aluminum frame; corners shall be factory sealed. Double wall thermally broken insulated curb housing polyisocyanurate insulation shall be ready for installation to roof deck. 2. Skylight Panel Color: Outer sheet to be white and inner sheet to be white. 3. Curb: 11-gauge aluminum, 12 inches high,formed with a 3-1/2-inch flange with holes provided for securing to roof deck. Equipment curb with an integral metal cap flashing of 11-gauge aluminum,fully sealed at corners for weathertightness. 4. Curb insulation: 1-inch-thick rigid fiberboard. 5. Provide heavy pintle hinges and compression spring operators enclosed in telescopic tubes,positive snap latch with turn handles on inside only,padlock hasps inside and neoprene draft seal. Final 016059.02 ©KJ 2002 07700 - 3 Roof Hatches and Skylights 6. Equip cover with special automatic positive action hold-open arm. Furnish hardware of stainless steel. 7. Aluminum Finish: Dark bronze color anodized 0.7 mil,Architectural Class I. 8. Warning signs: Furnish a warning sign on underside of cover, adjacent to hold-open latch,reading "Caution-Hold-Open Latch shall be Positively Engaged Before Using." 2.02 FIXED SKYLIGHTS A. Manufacturer: Naturalite Skylight Systems,The Vistawall Group; or equal. B. Product and Model: Double domed, skylight with self-flashing integral curb.Naturalite SFST or equal. C. Product Description 1. The skylight shall be factory assembled units,each consisting of a 2 -3/4" double-faced fiberglass reinforced polyester panel with chemically and thermally bonded DuPont TedlarO and an extruded aluminum frame. Thermalized frame shall have poured and debridged polyurethane thermal break without weep holes to prevent condensation on interior portion of aluminum frame; corners shall be factory sealed.Double wall thermally broken insulated curb housing polyisocyanurate insulation shall be ready for installation to roof deck. 2. Skylight Panel Color: Outer sheet to be white and inner sheet to be white. 3. Curb: I 1-gauge aluminum, 12 inches high,formed with a 3-1/2-inch flange with holes provided for securing to roof deck. Equipment curb with an integral metal cap flashing of 11-gauge aluminum,fully sealed at corners for weathertightness. 4. Curb insulation: 1-inch-thick rigid fiberboard. 5. Aluminum Finish: Dark bronze color anodized 0.7 mil,Architectural Class I. PART 3 -EXECUTION 3.01 EXAMINATION A. Site Verification of Conditions: Verify substrate conditions,which have been previously installed under other sections, are acceptable for product installation in accordance with manufacturer's instructions. B. Verify field dimensions and examine conditions of substrates, supports, and other conditions under which work is to be performed. Do not proceed with work until unsatisfactory conditions are corrected. 3.02 INSTALLATION A. General 1. Match profiles, sizes, and spacings indicated on approved shop drawings. 2. Coordinate installation with adjacent work such as roofing, sheet metal and other work to ensure creation of a complete weatherproof assembly.Anchor work securely to supporting structure,but allow for differential and thermal movement. 3. Isolate between aluminum and dissimilar metals with a protective coating or plastic strip to prevent electrolytic corrosion. Final 016059.02 ©KJ 2002 07700-4 Roof Hatches and Skylights 4. Comply with manufacturer's product data,including product technical bulletins, product catalog installation instructions and product carton instructions for installation. B. Skylight Roof Hatches I. Consists of integral curb with flashing flange. Install prior to application of roofing. 2. Position over prepared opening and secure with self-drilling screws bolts into metal deck. 3. Adjusting: After installation,remove shipping clips from components. Do not remove "risk-of-fall" labels from units. Touch-up and repair minor damage to eliminate all evidence of repair. Remove and replace work that cannot be satisfactorily repaired. C. Fixed Skylights: I. Install on wood sills anchored to concrete curbs provided. 2. Install after all roofing felts and flashings have been installed and carried up the face of concrete curbs. Ensure that skylight counterflashing laps positively over roof flashing felts. 3. Attach with stainless steel screws through counterflashing and felt flashing and into the wood,metal,or concrete sill. 3.03 CLEANING A. Cleaning: Remove temporary coverings and protection of adjacent work areas.Repair or replace damaged installed products. Clean installed products in accordance with manufacturer's instructions prior to owner's acceptance. Remove construction debris from project site and legally dispose of debris. I. Clean all exposed surfaces including metal and glazing using non-abrasive materials and methods recommended by manufacturer of material or product being cleaned. Remove and replace work that cannot be successfully cleaned. 2. Reclean as necessary to prevent damage. Protect completed work from damage and deterioration and inspect immediately before final acceptance of project. 3.04 PROTECTION A. Protection: Protect installed product and finish surfaces from damage during construction. END OF SECTION Final 016059.02 ©KJ 2002 07700 - 5 Roof Hatches and Skylights