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SECTION 0703 BUILT-UP ROOFING
<br />SECTION 0703 BUILT-UP ROOFING (CONT.)
<br />SECTION 0704 EXTERIOR INSULATION AND FINISH SYSTEM (EIFS) (CONT.)
<br />2.00 MATERIALS
<br />A.
<br />Bitumen:
<br />. B.
<br />Felts:
<br />C.
<br />Roofing Cement:
<br />D.
<br />Top Coat:
<br />E.
<br />Surface Coating
<br />F. Walkway Pads:
<br />G. Tapered Edge Strips:
<br />H. Covering For Parapets:
<br />3.00 PROTECTION OF OTHER WORK
<br />ASTM D312 Type II and Type III
<br />Asphalt.
<br />ASTM D2178 Type IV.
<br />ASTM D4586, Asphalt based flashing
<br />cement, asbestos -free.
<br />Bitumen asphalt type II and type III
<br />Leafed Aluminum pigment in an
<br />asbestos free fibered asphalt base.
<br />Aluminum Content: not less than 2
<br />lb./gal. ASTM D2824 Type III.
<br />Asphalt impregnated mineral boards
<br />with slate granular surface 24" x
<br />24" x 1/2".
<br />Perlite board taper strips ASTM
<br />C728.
<br />90 lbs. roll roofing.
<br />A. Protect metal, glass, plastic and unpainted surfaces within
<br />wind-borne range of bitumen application. Protect neighboring
<br />work, properties, cars and person from spills and wind-borne
<br />bitumen surfacing.
<br />4.00 INSTALLATION
<br />A. Apply buildup roofing in
<br />strict accordance with manufacturers
<br />printed instructions.
<br />B. Roofing materials shall
<br />be thoroughly dry when applied and
<br />shall be closed in at end
<br />of each day.
<br />C. Application of roofing system
<br />in phases is not acceptable.
<br />D. ROOF MEMBRANE SYSTEM:
<br />1. Description:
<br />Four (4) hot mopped plies, plus
<br />smooth surfacing over accepted roof
<br />insulation.
<br />2. Plies:
<br />Four shingled plies, lapped 27 - 1/2
<br />using starter sheets.
<br />3. Type of Felt
<br />Fiberglass.
<br />4. Interply bitument
<br />Type II or III asphalt.
<br />5. Smooth Surfacing:
<br />Flood coat of Bitumen over top felt
<br />layer plus fibrated aluminum roof
<br />coating.
<br />E. Application Temperatures
<br />of Asphalts:
<br />1. Type II
<br />350 to 415 degrees F.
<br />2. Type III
<br />365 to 435 degrees F.
<br />F. Roofing Ply Application:
<br />1. Apply uniform, solid bitumen mopping at the rate of 23
<br />to 27 lbs./100 sq. ft. Apply bitumen the full width of
<br />the sheet, and sufficiently hot to obtain complete
<br />embedment of ply to ply.
<br />2. Roll felt into hot bitumen. Extend each ply of roofing
<br />felts to the top of the parapet wall.
<br />3. Broom in promptly to eliminate voids and obtain total
<br />embedment.
<br />4. Apply layer of roofing cement to top layer of wall felts
<br />and cover with 90 lb. roll roofing. Lap joints in
<br />direction of water flow.
<br />G. Smooth Surfacing:
<br />1. Apply Flood coat of Bitumen over last felt uniformly at
<br />the rate of 25 lbs./100 sq. foot.
<br />2. Once dry, and properly cured apply Fibrated Aluminum
<br />coating uniformly at the rate of 2 gals./100 sq. ft.
<br />Coating must be thoroughly mixed to a smooth consistency
<br />and uniform silver color.
<br />3. Coatings shall be installed in strict accordance with
<br />manufacturer's printed instructions.
<br />H. Walkway Pad Application; Provide walkway pads at perimeter
<br />of HVAC rooftop units and roof hatch. Set walkway pads in
<br />hot, Type III asphalt at the rate of 20 lbs. per square.
<br />Provide 6 inch space at joints for proper drainage. Pads
<br />are to be within 2 inches of HVAC units. (See drawings)
<br />I. Provide crickets at high end of all roof curbs for HVAC,
<br />roof hatches and where shown on drawings.
<br />SECTION 0704 EXTERIOR INSULATION AND FINISH SYSTEM (EIFS)
<br />1.00 ACCEPTABLE MANUFACTURERS: Sto Industries
<br />Atlanta, Ga.
<br />Tom Rosenberger or Mary Elzey 1-800-
<br />221-2397
<br />or Approved Equal
<br />2.00 MATERIALS:
<br />A. Dispersion Adhesive
<br />B. Insulation Board
<br />C. Reinforcing Fabric:
<br />■IM:1116*9
<br />E. Finish:
<br />F. Water:
<br />G. Aggregate
<br />3.00 EXECUTION:
<br />A 100 % copolymer emulsion adhesive
<br />that is waterproof and vapor permeable.
<br />Aged expanded polystrene 1PCF, minimum
<br />1"thick,conforming to FS HH-1524C,typel
<br />Open weave woven glass fiber mesh to be
<br />alkaline resistant coated at least 20
<br />grams per sq. yard.
<br />A 80% acrylic 20% portland premixed
<br />polymer -based grout coat.
<br />Redi-mixed all acrylic based wall
<br />coating having integral color and
<br />aggregate. Sto color Maxicryl #21609
<br />see drawings for locations.
<br />Clean and potable.
<br />Stolit K 1.
<br />A. All installations of STO materials shall be performed by and/or
<br />supervised by STO trained applicators.
<br />B. The finish system shall be applied in accordance with STO
<br />specifications.
<br />C. The surface to receive the STO Full Thermal System shall be
<br />structurally sound, clean, dry, and uniform.
<br />D. Ambient temperature shall be 40 degrees F. or higher
<br />during installation and for at least 24 hours thereafter.
<br />E. Avoid application in direct sunlight.
<br />F. Sto Dipersion Adhesive to be applied in ribbons using a 3/16"
<br />trowel, and running horizontal with the building walls.
<br />G. Maintain surface flatness with maximum variation of 1/8"
<br />within 10 feet.
<br />H. No exposed or partially exposed fabric will be acceptable.
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<br />I. Finish shall be applied in a continuous application, always
<br />working to a wet edge. Finish shall be uniform, smooth
<br />Stolit K 1, sand -type texture.
<br />J. Any and all mixing of Sto materials to be done with clean, rust
<br />free, high-speed mixer. Small amounts of water may be
<br />added to the finish, per specification, to aid workability.
<br />K. The Sto Full Thermal System is to be completely installed and
<br />cured before soffit panels are scheduled for installation.
<br />Soffit panels shall not be installed prior to the installation
<br />of the Sto Full Thermal System. Should this occur, the Sto
<br />System installer will be responsible for cleaning all soffit
<br />panels of any debris, paint, etc.
<br />L. Where indicated on the drawings install BTS-B and reinforced
<br />finish coats directly on the smooth face concrete block.
<br />M. Color of finish applied to full thermal system shall be Sto color
<br />Maxicryl #21609. Color of finish applied directly to concrete
<br />block, when required, shall be Sto color Maxicryl #21609.
<br />4.00 WARRANTY
<br />A. Contractor shall provide owner with the Sto 5 year
<br />Systems warranty.
<br />SECTION 0705 SEALANTS
<br />1.00 GENERAL:
<br />A. Install sealants between all dissimilar materials as well as
<br />all expansion, construction and saw cut joints.
<br />2.00 MATERIAL:
<br />A. Exterior
<br />1. Masonry Control Joints:
<br />Paintable Polyurethane base, multicomponent,
<br />chemical curing: type II non -sagging conforming to FS TT-
<br />S227E with 25% joint movement capability.
<br />2. Aluminum Framing System:
<br />Silicone base, one component, chemical curing conforming to
<br />FS TT-S1543A with 25% joint movement capability color to
<br />match adjacent surface.
<br />3. Expansion and Control Joints in Paving:
<br />Polyurethane based, multi component, self -leveling,
<br />chemically curing, type M, grade P conforming to
<br />FS TT-S-00227E. Color to closely match pavement color.
<br />B. Interior: Paintable acrylic base, one component, solvent curing
<br />non -staining, non -bleeding, non -sagging, conforming to FS TT-S-
<br />230 Type II with 7.5% joint movement capability.
<br />C. Primer: Non -staining type recommended by caulking
<br />manufacturer to suit application.
<br />D. Joint Cleaner: Noncorrosive type recommended by caulking
<br />manufacturer to suit application.
<br />E. Joint Filler: Round, open cell polyethylene form rod
<br />oversized 25%-50%.
<br />3.00 INSTALLATION:
<br />A. Clean and prepare joints in accordance with manufacturers
<br />recommendations. Remove loose material and other foreign
<br />matter that might impair adhesions of caulking.
<br />B. Ensure that joint forming materials are compatible with
<br />caulking.
<br />C. Comply strictly with manufacturers printed instructions.
<br />D. Remove excess caulking materials from surfaces adjacent to
<br />caulked joints.
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