Specifications.pdf

SPECIFICATIONS

INDEX BY DIVISION

01 33 00 Submittal Procedures 02 41 00 Demolition 07 31 13 Asphalt Shingles 07 62 00 Sheet Metal Flashing and Trim 07 67 12 Manufactured Gutters and Downspouts 07 92 00 Joint Sealants

Note that where the specifications refer to “drawings”, this applies to the shop drawings required by the specifications; construction drawings have not been provided. Building drawings are available upon request in scanned pdf format, but are not considered reliable for quantity take-off purposes.

SECTION 01 33 00 - SUBMITTAL PROCEDURES

PART 1 – GENERAL

1.01 DESCRIPTION

A. Reviewing, Certifying, Approving Authority: Contractor shall be responsible for reviewing and certifying that submittals are in compliance with contract requirements.

B. Scheduling: Allow review period, beginning with receipt by approving authority that includes at least 15 working days for submittals for contracting officer approval. Period of review for submittals with contracting officer approval begins when Government receives submittal from contractor. Period of review for each resubmittal is the same as for initial submittal.

C. Submittal Quality and Legibility: Submittals will be clear and concise, with applicable parts, models, and units clearly delineated.

D. Submittal Format: Submittals shall be submitted in pdf format to the CO. Contractor shall provide each submittal in a single pdf file to the extent practical, with file size optimized.

Samples (such as for color selection) are exempt from this requirement.

E. Variations: Variations from contract requirements require Government approval pursuant to contract Clause entitled “FAR 52.236-21, Specifications and Drawings for Construction” and will be considered where advantages to government.

END OF SECTION 01 33 00

SECTION 02 14 00

DEMOLITION

SECTION 02 41 00 – DEMOLITION

PART 1 - GENERAL

1.01 DESCRIPTION

A. This section covers the furnishing of materials, labor, and equipment required to partially or entirely remove and/or demolish those items identified on in this contract and restore any disturbed areas or components impacted by demolition.

1.02 JOB CONDITIONS

A. Protection: Ensure safe passage of persons around area of demolition. Conduct operations to prevent injury to adjacent buildings, structures, and persons in accordance with the approved safety plan.

B. Damages: Promptly repair damages caused to adjacent structures by demolition operations at no cost to the Owner.

PART 2 - PRODUCTS

Not applicable.

PART 3 - EXECUTION

3.01 DISPOSAL OF DEMOLISHED MATERIALS

A. Contractor shall provide for and document the recycling of major components of the project, specifically the steel roofing.

B. All debris, rubbish, and other materials resulting from demolition operations and not identified as salvageable by the Owner’s Representative shall be removed and transported to a Contractor-furnished disposal site.

C. Debris and rubbish resulting from demolition work shall be staged in an on-site container and removed from the site promptly and regularly. Grounds will be cleaned daily of all debris. Contractor shall utilize a magnet to capture small ferrous items such as nails and metal trimmings.

D. Burning of removed materials will not be permitted on site.

END OF SECTION 02 14 00

SECTION 07 31 13

ASPHALT SHINGLES

SECTION 07 31 13 - ASPHALT SHINGLES

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Asphalt shingles.

2. Underlayment.

3. Ridge vents.

4. Metal flashing and trim.

1.2 DEFINITION

A. Roofing Terminology: See ASTM D 1079 and glossary of NRCA's "The NRCA Roofing and Waterproofing Manual" for definitions of terms related to roofing work in this Section.

1.3 PREINSTALLATION MEETINGS

A. Pre-installation Phone Conference: Conduct phone conference at time and on phone line determined by the Contracting Officer or their designee.

1.4 ACTION SUBMITTALS

A. Product Data: For each type of product.

B. Samples: For each exposed product and for each color and texture specified.

1. Asphalt Shingles: Full size.

2. Ridge and Hip Cap Shingles: Full size.

3. Ridge Vent: 36” long sample.

4. Drip edge and trim. 36 inch long sample

C. Samples for Initial Selection: For each type of asphalt shingle indicated.

1. Include similar Samples of accessories involving color selection.

D. Samples for Verification: For the following products, of sizes indicated:

1. Asphalt Shingles: Full size.

2. Ridge and Hip Cap Shingles: Full size.

3. Ridge Vent: 36 inch long Sample.

1.5 INFORMATIONAL SUBMITTALS

A. Qualification Data: For Installer.

B. Product Test Reports: For each type of asphalt shingle and underlayment product indicated, for tests performed by a qualified testing agency.

C. Sample Warranty: For manufacturer's warranty.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance Data: For asphalt shingles to include in maintenance manuals.

1.7 MAINTENANCE MATERIAL SUBMITTALS

A. Furnish extra materials that match products installed and that are packaged with protective covering for storage and identified with labels describing contents.

1. Asphalt Shingles: 100 sq. ft. (9.3 sq. m) of each type, in unbroken bundles.

1.8 QUALITY ASSURANCE

A. Installer Qualifications: An authorized representative who is trained and approved by manufacturer.

1.9 DELIVERY, STORAGE, AND HANDLING

A. Store roofing materials in a dry, well-ventilated location protected from weather, sunlight, and moisture according to manufacturer's written instructions.

B. Store underlayment rolls on end on pallets or other raised surfaces. Do not double stack rolls.

C. Protect unused roofing materials from weather, sunlight, and moisture when left overnight or when roofing work is not in progress.

D. Handle, store, and place roofing materials in a manner to prevent damage to roof deck or structural supporting members.

E. Handle, store and place roofing materials on the roof prior to application in a manner so as to prevent deformation and/or damage to the shingle bundles or shingles.

1.10 FIELD CONDITIONS

A. Environmental Limitations: Install self-adhering sheet underlayment within the range of ambient and substrate temperatures recommended in writing by manufacturer.

1.11 WARRANTY

A. Manufacturer's Warranty: Manufacturer agrees to repair or replace asphalt shingles that fail within specified warranty period.

1. Failures include, but are not limited to, the following:

a. Manufacturing defects.

2. Material Warranty Period: 50 years from date of Substantial Completion, prorated, with first five years non-prorated.

3. Wind-Speed Warranty Period: Asphalt shingles will resist blow-off or damage caused by wind speeds of up to 130 mph (58 m/s) FIFTEEN years from date of Substantial Completion.

4. Algae-Resistance Warranty Period: Asphalt shingles will not discolor from black streaking algae for TWENTY years from date of Substantial Completion prorated after ONE year.

5. Workmanship Warranty Period: FIVE years from date of Substantial Completion.

B. Roofing Installer's Warranty: On warranty form at end of this Section, signed by Installer, in which Installer agrees to repair or replace components of asphalt-shingle roofing that fail in materials or workmanship within specified warranty period.

1. Warranty Period: TWO years from date of Substantial Completion.

PRODUCTS

1.12 PERFORMANCE REQUIREMENTS

A. Exterior Fire-Test Exposure: Provide asphalt shingles and related roofing materials identical to those of assemblies tested for Class A fire resistance according to ASTM E 108 or UL 790 by Underwriters Laboratories or another testing and inspecting agency acceptable to authorities having jurisdiction. Identify products with appropriate markings of applicable testing agency.

1.13 GLASS-FIBER-REINFORCED ASPHALT SHINGLES

A. Laminated-Strip Asphalt Shingles: ASTM D 3462/D 3462M, laminated, multi-ply overlay construction, glass-fiber reinforced, mineral-granule surfaced, and self-sealing.

1. Basis-of-Design Products: Malarkey Roofing Products, Legacy Shingle featuring Scotchgard.

2. Butt Edge: Straight cut.

3. Strip Size: Manufacturer's standard.

4. Algae Resistance: Granules resist algae discoloration.

5. Impact Resistance: UL 2218, Class 4.

6. Color and Blends: As selected by Contracting Officer from manufacturer's full range of colors and blends.

B. Hip and Ridge Shingles: Manufacturer's standard units to complement asphalt shingles and or Site-fabricated units cut from asphalt-shingle strips. Trim each side of lapped portion of unit to taper approximately 1 inch (25 mm). Contracting Officer in consultation with supplier and contractor shall choose between manufacturers standard unit or site fabricated hip and ridge shingles.

1.14 UNDERLAYMENT MATERIALS

A. Self-Adhering Sheet Underlayment, ASTM D1970, ASTM D903, ASTM E96 minimum: Minimum of 40-mil- (1.0-mm-) thick; with slip-resisting, polymer-film-reinforced or glass-reinforced top surface laminated to layer of adhesive; with release backing; cold applied; and evaluated and documented to be suitable for use for intended purpose under applicable codes by a testing and inspecting agency acceptable to authorities having jurisdiction.

1. Basis-of-Design Product: InterWrap Roofing Products Division; Titanium PSU 30 Subject to compliance with requirements, provide; Titanium PSU 30 or comparable product by one of the following:

a. Use product required by manufacturer if it is a requirement of the warranty.

2. Thermal Stability: Stable after testing at 240 deg F (116 deg C) according to

ASTM D 1970.

3. Low-Temperature Flexibility: Passes after testing at minus 20 deg F (29 deg C) according to ASTM D 1970/D 1970M.

4. Class A Fire Resistance

1.15 RIDGE VENTS

A. Rigid Ridge Vent: Manufacturer's standard, rigid section high-density polypropylene or other UV-stabilized plastic ridge vent for use under ridge shingles.

1. Basis-of-Design Products: Subject to compliance with requirements, provide or comparable product by one of the following:

a. Air Vent, Inc.; a Gibraltar Industries company.

b. Lomanco, Inc.

c. CertainTeed Corporation; CertainTeed Ridge Vent.

2. Minimum Net Free Area: 0.7% of gross roof area

3. Width: Drawings or match existing.

4. Thickness: Drawings or match existing.

a. Nonwoven geotextile filter strips.

b. External deflector baffles.

B. Flexible Ridge Vent: Manufacturer's standard, compression-resisting, three-dimensional, open-nylon or polyester-mat filter bonded to a nonwoven, nonwicking, geotextile fabric cover.

1. Basis-of-Design Product: Subject to compliance with requirements, provide CertainTeed Corporation; CertainTeed Ridge Vent or comparable product by one of the following:

a. Air Vent, Inc.; a Gibraltar Industries company.

b. Lomanco, Inc.

2. Minimum Net Free Area: 0.7% of gross roof area.

3. Width: Drawings or match existing.

4. Thickness: Drawings or match existing.

1.16 ACCESSORIES

A. Asphalt Roofing Cement: ASTM D 4586, Type II, asbestos free.

B. Roofing Nails: ASTM F 1667; stainless-steel or aluminum wire shingle nails, minimum 0.120-inch- (3-mm-) diameter, sharp-pointed, with a minimum 3/8-inch- (9.5-mm-) diameter flat head and of sufficient length to penetrate 3/4 inch (19 mm) into solid wood decking or extend at least 1/8 inch (3 mm) through OSB or plywood sheathing.

1. Where nails are in contact with metal flashing, use nails made from same metal as flashing or stainless steel.

C. Synthetic-Underlayment Fasteners Metal or Disc Cap: As recommended in writing by synthetic-underlayment manufacturer for application indicated.

1.17 METAL FLASHING AND TRIM

A. General: Comply with requirements in Section 07 62 00 "Sheet Metal Flashing and Trim."

1. Sheet Metal: Aluminum, mill finished.

B. Fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to design, dimensions, metal, and other characteristics of the item.

1. Apron Flashings: Fabricate with lower flange a minimum of 4 inches (100 mm) over and 4 inches (100 mm) beyond each side of downslope asphalt shingles and 6 inches (150 mm) up the vertical surface.

2. Step Flashings: Fabricate with a headlap of 2 inches (50 mm) and a minimum extension of 5 inches (125 mm) over the underlying asphalt shingle and up the vertical surface.

3. Cricket or Backer Flashings: Fabricate with concealed flange extending a minimum of 24 inches (600 mm) beneath upslope asphalt shingles and 6 inches (150 mm) beyond each side of skylight and 6 inches (150 mm) above the roof plane.

4. Open-Valley Flashings: Fabricate in lengths not exceeding 10 feet (3 m) with 1-inch- (25-mm-) high, inverted-V profile at center of valley and equal flange widths of 12 inches (300 mm).

5. Drip Edges: Fabricate in lengths not exceeding 10 feet (3 m) with 2-inch (50-mm) roof-deck flange and 1-1/2-inch (38-mm) fascia flange with 3/8-inch (9.5-mm) drip at lower edge.

6. Drip Edges where roofing panel is utilized as fascia: Fabricate in lengths not exceeding 10 feet (3 m) with 8-inch (203-mm) roof-deck flange and 3-inch (76-

mm) fascia flange with 3/8-inch (9.5-mm) drip at lower edge.

PART 2 - EXECUTION

2.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting performance of the Work.

1. Examine roof sheathing to verify that sheathing joints are supported by framing and blocking or metal clips and that installation is within flatness tolerances.

2. Verify that substrate is sound, dry, smooth, clean, sloped for drainage, and completely anchored; and that provisions have been made for flashings and penetrations through asphalt shingles.

B. Prepare written report, endorsed by Installer, listing conditions detrimental to performance of the Work.

C. Proceed with installation only after unsatisfactory conditions have been corrected.

2.2 UNDERLAYMENT INSTALLATION

A. General: Comply with underlayment manufacturer's written installation instructions applicable to products and applications indicated unless more stringent requirements apply.

B. Self-Adhering Sheet Underlayment: Install, wrinkle free, on roof deck. Comply with low-temperature installation restrictions of underlayment manufacturer if applicable.

Install lapped in direction that sheds water. Lap sides not less than 3-1/2 inches (89 mm).

Lap ends not less than 6 inches (150 mm) staggered 24 inches (600 mm) between courses.

Roll laps with roller. Cover underlayment within seven days.

1. Prime concrete and masonry surfaces to receive self-adhering sheet underlayment.

2. Eaves: Extend from edges of eaves 36 inches (914 mm) beyond interior face of exterior wall.

3. Rakes: Extend from edges of rake 36 inches (914 mm) beyond interior face of exterior wall.

4. Valleys: Extend from lowest to highest point 18 inches (450 mm) on each side.

5. Hips: Extend 18 inches (450 mm) on each side.

6. Ridges: Extend 36 inches (914 mm) on each side without obstructing continuous ridge vent slot.

7. Sidewalls: Extend beyond sidewall 18 inches (450 mm), and return vertically against sidewall not less than 4 inches (100 mm).

8. Dormers, Chimneys, Skylights, and Other Roof-Penetrating Elements: Extend beyond penetrating element 18 inches (450 mm), and return vertically against penetrating element not less than 4 inches (100 mm).

9. Roof Slope Transitions: Extend 18 inches (450 mm) on each roof slope.

2.3 METAL FLASHING INSTALLATION

A. General: Install metal flashings and other sheet metal to comply with requirements in Section 07 62 00 "Sheet Metal Flashing and Trim."

1. Install metal flashings according to recommendations in ARMA's "Residential Asphalt Roofing Manual" and NRCA's "NRCA Guidelines for Asphalt Shingle Roof Systems."

B. Apron Flashings: Extend lower flange over and beyond each side of downslope asphalt shingles and up the vertical surface.

C. Step Flashings: Install with a headlap of 2 inches (50 mm) and extend over the underlying asphalt shingle and up the vertical surface. Fasten to roof deck only.

D. Cricket or Backer Flashings: Install against the roof-penetrating element extending concealed flange beneath upslope asphalt shingles and beyond each side.

E. Rake Drip Edges: Install rake drip-edge flashings over underlayment and fasten to roof deck.

F. Eave Drip Edges: Install eave drip-edge flashings below underlayment and fasten to roof sheathing.

G. Pipe Flashings: Form flashing around pipe penetrations and asphalt shingles. Fasten and seal to asphalt shingles as recommended by manufacturer.

2.4 ASPHALT-SHINGLE INSTALLATION

A. General: Install asphalt shingles according to manufacturer's written instructions and conditions to obtain manufacturer warranty, recommendations in ARMA's "Residential Asphalt Roofing Manual," and recommendations in NRCA's "NRCA Guidelines for Asphalt Shingle Roof Systems."

B. Install starter strip along lowest roof edge, consisting of an asphalt-shingle strip at least 7 inches (175 mm) wide with self-sealing strip face up at roof edge.

1. Extend asphalt shingles 1/2 inch (13 mm) over fasciae at eaves and rakes.

2. Install starter strip along rake edge.

C. Install first and remaining courses of asphalt shingles stair-stepping diagonally across roof deck with manufacturer's recommended offset pattern at succeeding courses, maintaining uniform exposure.

D. Install first and remaining courses of asphalt shingles stair-stepping diagonally across roof deck with manufacturer's recommended offset pattern or as specified by the roofing Manufacturer at succeeding courses, maintaining uniform exposure.

E. Install asphalt shingles by single-strip column or racking method, maintaining uniform exposure. Install full-length first course followed by cut second course, repeating alternating pattern in succeeding courses.

F. Fasten asphalt-shingle strips with a minimum of six roofing nails located according to manufacturer's written instructions.

1. Where roof slope exceeds 21:12, seal asphalt shingles with asphalt roofing cement spots after fastening with additional roofing nails, meeting ASTM D4586, Type II.

2. Where roof slope is less than 4:12, seal asphalt shingles with asphalt roofing cement spots.

3. When ambient temperature during installation is below 50 deg F (10 deg C), seal asphalt shingles with asphalt roofing cement spots.

G. Closed-Cut Valleys: Extend asphalt-shingle strips from one side of valley 12 inches (300

mm) beyond center of valley. Use one-piece shingle strips without joints in valley.

Fasten with extra nail in upper end of shingle. Install asphalt-shingle courses from other side of valley and cut back to a straight line 2 inches (50 mm) short of valley centerline.

Trim upper concealed corners of cut-back shingle strips.

1. Do not nail asphalt shingles within 6 inches (150 mm) of valley center.

2. Set trimmed, concealed-corner asphalt shingles in a 3-inch- (75-mm-) wide bed of asphalt roofing cement.

H. Ridge Vents: Install continuous ridge vents over asphalt shingles according to manufacturer's written instructions. Fasten with roofing nails of sufficient length to penetrate sheathing.

I. Hip and Ridge Shingles: Maintain same exposure of cap shingles as roofing shingle exposure. Lap cap shingles at ridges to shed water away from direction of prevailing winds. Fasten with roofing nails of sufficient length to penetrate sheathing.

1. Fasten ridge cap asphalt shingles to cover ridge vent without obstructing airflow.

2.5 ROOFING INSTALLER'S WARRANTY

A. WHEREAS of, herein called the "Roofing Installer," has performed roofing and associated work ("the work") on the following project:

1. Owner: .

2. Address: .

3. Building Name/Type: .

4. Address: .

5. Area of the Work: .

6. Acceptance Date: .

7. Warranty Period: .

8. Expiration Date: .

B. AND WHEREAS Roofing Installer has contracted (either directly with Owner or indirectly as a subcontractor) to warrant the work against leaks and faulty or defective materials and workmanship for designated Warranty Period, C. NOW THEREFORE Roofing Installer hereby warrants, subject to terms and conditions herein set forth, that during Warranty Period he will, at his own cost and expense, make or cause to be made such repairs to or replacements of the work as are necessary to correct faulty and defective work and as are necessary to maintain the work in a watertight condition.

D. This Warranty is made subject to the following terms and conditions:

1. Specifically excluded from this Warranty are damages to the work and other parts of the building, and to building contents, caused by:

a. Lightning;

b. Peak gust wind speed exceeding 130 mph (209 m/sec);

c. Fire;

d. Failure of roofing system substrate, including cracking, settlement, excessive deflection, deterioration, and decomposition;

e. Faulty construction of parapet walls, copings, chimneys, skylights, vents, equipment supports, and other edge conditions and penetrations of the work;

f. Vapor condensation on bottom of roofing; and

g. Activity on roofing by others, including construction contractors, maintenance personnel, other persons, and animals, whether authorized or unauthorized by Owner.

2. When the work has been damaged by any of foregoing causes, Warranty shall be null and void until such damage has been repaired by Roofing Installer and until cost and expense thereof have been paid by Owner or by another responsible party so designated.

3. Roofing Installer is responsible for damage to the work covered by this Warranty but is not liable for consequential damages to building or building contents resulting from leaks or faults or defects of the work.

4. During Warranty Period, if Owner allows alteration of the work by anyone other than Roofing Installer, including cutting, patching, and maintenance in connection with penetrations, attachment of other work, and positioning of anything on roof, this Warranty shall become null and void on date of the alterations, but only to the extent the alterations affect the work covered by this Warranty. If Owner engages Roofing Installer to perform the alterations, Warranty shall not become null and void unless Roofing Installer, before starting the alterations, notified Owner in writing, showing reasonable cause for claim, that the alterations would likely damage or deteriorate the work, thereby reasonably justifying a limitation or termination of this Warranty.

5. During Warranty Period, if original use of roof is changed and it becomes used for, but was not originally specified for, a use or service more severe than originally specified, this Warranty shall become null and void on date of the change, but only to the extent the change affects the work covered by this Warranty.

6. Owner shall promptly notify Roofing Installer of observed, known, or suspected leaks, defects, or deterioration and shall afford reasonable opportunity for Roofing Installer to inspect the work and to examine evidence of such leaks, defects, or deterioration.

7. This Warranty is recognized to be the only warranty of Roofing Installer on the work and shall not operate to restrict or cut off Owner from other remedies and resources lawfully available to Owner in cases of roofing failure. Specifically, this Warranty shall not operate to relieve Roofing Installer of responsibility for performance of the work according to requirements of the Contract Documents, regardless of whether Contract was a contract directly with Owner or a subcontract with Owner's General Contractor.

E. IN WITNESS THEREOF, this instrument has been duly executed this day of,.

1. Authorized Signature: .

2. Name: .

3. Title: .

END OF SECTION 07 31 13

SECTION 07 62 00

SHEET METAL FLASHING AND TRIM

SECTION 07 62 00 - SHEET METAL FLASHING AND TRIM

PART 3 - GENERAL

3.1 SECTION REQUIREMENTS

A. Submittals: Product Data color Samples.

B. Coordinate installation of sheet metal flashing and trim with adjoining roofing and wall materials, joints, and seams to provide a leakproof, secure, and noncorrosive installation.

C. Fabricator Qualifications: For copings and low-slope roof edge flashings that are SPRI ES-1 tested and FM Approvals approved, shop shall be listed as able to fabricate required details as tested and approved.

D. Warranty on Finishes: Manufacturer agrees to repair or replace sheet metal flashing and trim that shows evidence of deterioration of factory-applied finishes within 20 years.

PART 4 - PRODUCTS

4.1 PERFORMANCE REQUIREMENTS

A. Standard: Comply with SMACNA's "Architectural Sheet Metal Manual" unless otherwise indicated. Conform to dimensions and profiles shown unless more stringent requirements are indicated.

B. FM Approvals' Listing: Manufacture and install roof edge flashings that are listed in FM Approvals' "RoofNav" and approved for windstorm classification, Class 1-130. Identify materials with name of fabricator and design approved by FM Approvals.

C. SPRI Wind Design Standard: Manufacture and install low-slope roof edge flashings tested according to SPRI ES-1 and capable of resisting the following design pressure:

1. Design Pressure: 20psf.

4.2 SHEET METAL

A. Aluminum Sheet: ASTM B 209 (ASTM B 209M), alloy as standard with manufacturer for finish required, not less than 0.032 inch (0.8 mm) thick; with mill finish.

1. Finish: Manufacturer's standard.

2. Concealed Finish: Manufacturer's standard white or light-colored acrylic or polyester backer finish.

B. Metallic-Coated Steel Sheet: Galvanized steel sheet, ASTM A 653/A 653M, G90 (Z275), or aluminum-zinc alloy-coated steel sheet, ASTM A 792/A 792M, Class AZ50 coating designation, Grade 40 (Class AZM150 coating designation, Grade 275); 0.028-inch (0.71-mm) nominal thickness.

1. Finish: Manufacturer's standard epoxy primer and silicone-modified, polyester-enamel topcoat.

2. Concealed Finish: Manufacturer's standard white or light-colored acrylic or polyester backer finish.

4.3 ACCESSORIES

A. Felt Underlayment: ASTM D 226, Type I (No. 15), asphalt-saturated organic felts.

B. Self-Adhering, High-Temperature Sheet Underlayment: Butyl or SBS-modified asphalt;

slip-resisting-polyethylene surfaced; with release paper backing; cold applied. Stable after testing at 240 deg F (116 deg C) and passes after testing at minus 20 deg F (29 deg C); ASTM D 1970.

4.4 FABRICATION

A. Fabricate sheet metal flashing and trim to comply with details shown and recommendations in cited sheet metal standard that apply to the design, dimensions, geometry, metal thickness, and other characteristics of item indicated.

B. Expansion Provisions: Where lapped expansion provisions cannot be used, form expansion joints of intermeshing hooked flanges, not less than 1 inch (25 mm) deep, filled with butyl sealant concealed within joints.

C. Fabrication Tolerances: Fabricate sheet metal flashing and trim that are capable of installation to tolerances specified in MCA's "Guide Specification for Residential Metal Roofing."

PART 5 - EXECUTION

5.1 INSTALLATION

A. Comply with cited sheet metal standards. Allow for thermal expansion; set true to line and level. Install Work with laps, joints, and seams permanently watertight and weatherproof; conceal fasteners where possible.

B. Sealant Joints: Where movable, nonexpansion-type joints are required, form metal to provide for proper installation of elastomeric sealant according to cited sheet metal standard.

C. Seams: Fabricate nonmoving seams with flat-lock seams. For aluminum, form seams and seal with epoxy seam sealer. Rivet joints for additional strength.

D. Soldered Joints: Clean surfaces to be soldered, removing oils and foreign matter. Pretin edges of sheets to a width of 1-1/2 inches (38 mm); however, reduce pretinning where pretinned surface would show in completed Work.

1. Do not solder metallic-coated steel and aluminum sheet.

2. Do not pretin zinc-tin alloy-coated stainless steel.

3. Do not use torches for soldering.

4. Heat surfaces to receive solder, and flow solder into joint. Fill joint completely.

Completely remove flux and spatter from exposed surfaces.

E. Metal Protection: Where dissimilar metals contact each other, protect against galvanic action or corrosion by painting contact surfaces with bituminous coating.

1. Coat concealed side of aluminum with bituminous coating where it contacts wood, ferrous metal, or cementitious construction.

END OF SECTION 07 62 00

SECTION 07 67 12

MANUFACTURED GUTTERS AND DOWNSPOUTS

SECTION 076712-MANUFACTURED GUTTERS AND DOWNSPOUTS

PART 1 – GENERAL

1.01 SECTION INCLUDES

The work includes, but is not necessarily limited to, furnishing and installation of all preformed metal gutters, and accessories as indicated on the drawings and specified herein.

1.02 SUBMITTALS

A. PRODUCT DATA

1. Submit manufacturer’s technical product data, installation instructions and recommendations for each type of gutter required.

B. SAMPLES

1. Submit Manufacturer’s standard color Samples for Architect’s/Engineer’s selection.

2. Submit (2) 3” X 6” color chip for Architect’s/Engineer’s acceptance.

C. SHOP DRAWINGS

1. Installer to submit complete shop drawings indicating thickness and dimensions of parts, fastenings and anchoring methods, details and locations of gutter system and other provisions necessary to accommodate thermal expansion and contraction.

2. Shop drawings show methods of erection, elevations and plans of roof, sections and details, sealants, substrates, interfaces with all materials not supplied and proposed identification of parts and their finishes.

1.03 QUALITY ASSURANCE

A. INSTALLER’S QUALIFICATIONS

1. Installer shall meet the following:

a. Successfully applied metal gutter systems of comparable size and complexity, which reflect a quality installation.

b. Have been in business for a minimum period of three years in the region where the work will be performed.

B. MANUFACTURER’S QUALIFICATIONS

1. Manufacturer shall have a minimum of 3 years’ experience supplying metal gutter systems to the region where the work is to be done.

C. REGULATORY AGENCY REQUIREMENTS

1. Comply with UBC and local Building Code requirements if more restrictive than those specified herein.

1.04 PRODUCT DELIVERY, STORAGE AND HANDLING

A. Protect against damage and discoloration B. When hoisting, handle gutter with non-marring slings.

C. Do not bend gutter.

D. Store gutters above ground, with one end elevated for drainage.

E. Protect gutters against standing water and condensation between adjacent surfaces.

1.05 PROJECT CONDITIONS

A. Examine the conditions and substrates in which metal gutter system is to be installed. Substrate shall be level, flat and true to avoid gutter stresses and distortion.

B. Proceed with gutter installation only after satisfactory conditions are met.

1.06 WARRANTY

A. MANUFACTURER’S PRODUCT WARRANTY

1. Manufacturer’s standard Limited Lifetime coating performance warranty, as available for specified installation and environmental conditions. (Contact a Custom-Bilt Metals representative to determine actual warranty criteria.)

B. CONTRACTOR’S WARRANTY

1. Warrant gutters, flashings, sealants, fasteners and accessories against defective materials and/or workmanship, to remain watertight and weatherproof with normal usage for two (2) years following Project Substantial Completion date.

PART 2 – PRODUCTS

2.01 GUTTER PROFILE

A. GUTTER DESIGNATION:

1. 5” O.G.

2.02 MATERIALS

A. GUTTERS

1. Base metal:

a. Prefinished Aluminum made up of Alloy 3105/5005, Hardness (H14) in thickness .027 or .032 ASTM B 209.

2. Exterior Finish:

a. Dura Coat / Polyester resin

3. Interior Finish:

a. Polyester resin

4. Color:

a. Musket

B. ACCESSORIES

1. Fasteners:

a. Per manufacturer’s recommendation

2. Sealant:

a. Gunnable Grade Caulking: Single component polyurethane caulk

C. FLASHING

1. Material, gauge and finish to match gutters.

D. FABRICATION

1. Fabricate gutters, flashings and accessories in longest practical lengths.

2. Gutters shall be factory or field formed as required.

PART 3 – EXECUTION

3.01 EXAMINATION

A. EXISTING CONDITIONS

1. Verify that members to receive gutters are complete, accurately sized and located, in true plane, secure and otherwise properly prepared.

2. Prior to starting work, notify General Contractor about any defects requiring correction

3. Do not start work until conditions are satisfactory.

3.02 PREPARATION

A. FIELD MEASUREMENTS

1. Verify prior to fabrication.

2. If field measurements differ from drawing dimensions, notify

Architect/Engineer prior to fabrication.

B. PROTECTION

1. Treat, or isolate with protective material, any contacting surfaces of dissimilar materials to prevent electrolytic corrosion.

2. Protect Work of other Trades against damage and discoloration.

C. SURFACE PREPARATION

1. Clean and dry surfaces prior to applying sealant.

3.03 INSTALLATION

A. GUTTERS

1. Comply with gutter manufacturer’s instructions for assembly and installation.

2. Install in accordance with approved shop drawings.

3. Secure gutters without warp or deflection.

B. ALLOWABLE ERECTION TOLERANCE

1. Maximum substrate Variation: 1/4 inch in 20 feet.

C. FLASHING

1. Install in compliance with Manufacturer’s installation instructions and

Architect approved Shop Drawings.

2. Install flashings to allow for thermal movement.

D. CUTTING AND FITTING

1. Neat, square and true. Torch or saw cutting is prohibited.

3.04 CLEAN UP AND CLOSE OUT

A. GUTTER DAMAGE AND FINISH SCRATCHES

1. Touch-up paint should be applied to damaged paint areas that involve minor scratches or abrasions.

2. Panels or flashings that have severe paint and/or substrate damage shall be replaced as directed by the Contracting Officer.

B. CLEANING AND REPAIRING

1. At completion of each day’s work, sweep the Gutters, and Flashings clean. Do not allow fasteners, cuttings, filings or scraps to accumulate.

2. Remove debris from Project Site upon work completion or sooner, if directed.

END OF SECTION 07 67 12

SECTION 07 92 00

JOINT SEALANTS

SECTION 07 92 00 - JOINT SEALANTS

PART 1 - GENERAL

1.01 RELATED DOCUMENTS

A. General provisions of the Contract, including General and Supplementary Conditions and Division 01 Specification Sections, apply to this Section.

1.02 SUMMARY

A. Section Includes:

1. Silicone joint sealants.

2. Urethane joint sealants.

3. Latex joint sealants.

B. Related Sections:

1. Division 09 Section "Gypsum Board" for sealing perimeter joints.

1.03 SUBMITTALS

A. Product Data: For each joint-sealant product indicated.

B. Manufacturer’s Installation Instructions: Indicate special procedures, surface preparations, and perimeter conditions requiring special attention.

C. Samples for Initial Selection: Manufacturer's color charts consisting of strips of cured sealants showing the full range of colors available for each product exposed to view.

D. Joint-Sealant Schedule: Include the following information:

1. Joint-sealant application, joint location, and designation.

2. Joint-sealant manufacturer and product name.

3. Joint-sealant formulation.

4. Joint-sealant color.

E. Product Certificates: For each kind of joint sealant and accessory, from manufacturer.

F. Sealant, Waterproofing, and Restoration Institute (SWRI) Validation Certificate: For each sealant specified to be validated by SWRI's Sealant Validation Program.

G. Product Test Reports: Based on evaluation of comprehensive tests performed by a qualified testing agency, indicating that sealants comply with requirements.

H. Warranties: Sample of special warranties.

1.04 QUALITY ASSURANCE

A. Source Limitations: Obtain each kind of joint sealant from single source from single manufacturer.

1.05 DELIVERY, STORAGE, AND HANDLING

A. Deliver materials to Project site in original unopened containers or bundles with labels indicating manufacturer, product name and designation, color, expiration date, pot life, curing time, and mixing instructions for multicomponent materials.

B. Store and handle materials in compliance with manufacturer's written instructions to prevent their deterioration or damage due to moisture, high or low temperatures, contaminants, or other causes.

1.06 PROJECT CONDITIONS

A. Do not proceed with installation of joint sealants under the following conditions:

1. When ambient and substrate temperature conditions are outside limits permitted by joint-sealant manufacturer or are below 40 deg F (5 deg C).

2. When joint substrates are wet.

3. Where joint widths are less than those allowed by joint-sealant manufacturer for applications indicated.

4. Where contaminants capable of interfering with adhesion have not yet been removed from joint substrates.

1.07 WARRANTY

A. Special Installer's Warranty: Manufacturer's standard form in which Installer agrees to repair or replace joint sealants that do not comply with performance and other requirements specified in this Section within specified warranty period.

1. Warranty Period: Two years from date of Substantial Completion.

B. Special Manufacturer's Warranty: Manufacturer's standard form in which joint-sealant manufacturer agrees to furnish joint sealants to repair or replace those that do not comply with performance and other requirements specified in this Section within specified warranty period indicated below:

1. Warranty Period: 20 years from date of Substantial Completion for silicone sealants.

2. Warranty Period: 10 years from date of Substantial Completion for urethane and polysulfidesealants.

3. Warranty Period: 1 year from date of Substantial Completion for floor traffic sealants

C. Special warranties specified in this article exclude deterioration or failure of joint sealants from the following:

1. Movement of the structure caused by structural settlement or errors attributable to design or construction resulting in stresses on the sealant exceeding sealant manufacturer's written specifications for sealant elongation and compression.

2. Disintegration of joint substrates from natural causes exceeding design specifications.

3. Mechanical damage caused by individuals, tools, or other outside agents.

4. Changes in sealant appearance caused by accumulation of dirt or other atmospheric contaminants.

PART 2 - PRODUCTS

2.01 MATERIALS, GENERAL

A. Compatibility: Provide joint sealants, backings, and other related materials that are compatible with one another and with joint substrates under conditions of service and application, as demonstrated by joint-sealant manufacturer, based on testing and field experience.

B. VOC Content of Interior Sealants: Provide sealants and sealant primers for use inside the weatherproofing system that comply with the following limits for VOC content when calculated according to 40 CFR 59, Part 59, Subpart D (EPA Method 24):

1. Architectural Sealants: 250 g/L.

2. Sealant Primers for Nonporous Substrates: 250 g/L.

3. Sealant Primers for Porous Substrates: 775 g/L.

C. Liquid-Applied Joint Sealants: Comply with ASTM C 920 and other requirements indicated for each liquid-applied joint sealant specified, including those referencing ASTM C 920 classifications for type, grade, class, and uses related to exposure and joint substrates.

1. Suitability for Immersion in Liquids. Where sealants are indicated for Use I for joints that will be continuously immersed in liquids, provide products that have undergone testing according to ASTM C 1247. Liquid used for testing sealants is deionized water, unless otherwise indicated.

D. Stain-Test-Response Characteristics: Where sealants are specified to be nonstaining to porous substrates, provide products that have undergone testing according to ASTM C 1248 and have not stained porous joint substrates indicated for Project.

E. Suitability for Contact with Food: Where sealants are indicated for joints that will come in repeated contact with food, provide products that comply with 21 CFR 177.2600.

F. Colors of Exposed Joint Sealants: As selected by Contracting Officer from manufacturer's full range.

2.02 SILICONE JOINT SEALANTS

A. Single-Component, Nonsag, Traffic-Grade, Neutral-Curing Silicone Joint Sealant:

ASTM C 920, Type S, Grade NS, Class 100/50, for Use T.

1. Products: Subject to compliance with requirements, provide one of the following:

a. Dow Corning Corporation; 790.

b. May National Associates, Inc.; Bondaflex Sil 728 NS.

c. Pecora Corporation; 301 NS.

d. Tremco Incorporated; Spectrem 800.

2. Applications: Wall applications as follows:

a. Horizontal and vertical joints from metal to metal.

b. Wood to metal joints.

c. Glass to exterior window frames over dry gaskets.

d. Wood to gypsum wallboard joints.

e. Metal to gypsum wallboard joints.

f. Interior metal to concrete joints.

B. Single-Component, Pourable, Traffic-Grade, Neutral-Curing Silicone Joint Sealant: ASTM C 920, Type S, Grade P, Class 100/50, for Use T.

a. Dow Corning Corporation; 890-SL.

b. May National Associates, Inc.; Bondaflex Sil 728 SG.

c. Pecora Corporation; 300 SL.

d. Tremco Incorporated; Spectrem 900 SL.

2.03 URETHANE JOINT SEALANTS

A. Single-Component, Pourable, Traffic-Grade, Urethane Joint Sealant: ASTM C

920, Type S, Grade P, Class 25, for Use T.

a. BASF Building Systems; Sonolastic SL 1.

b. Pecora Corporation; Urexpan NR-201.

c. Tremco Incorporated; Vulkem 45.

2. Applications: Floor applications as follows:

a. Exterior concrete to concrete joints. b. Interior concrete to concrete joints. c. Interior tile joints.

2.04 LATEX JOINT SEALANTS

A. Latex Joint Sealant: Acrylic latex or siliconized acrylic latex, ASTM C 834, Type OP, Grade NF.

a. BASF Building Systems; Sonolac.

b. Bostik, Inc.; Chem-Calk 600.

c. May National Associates, Inc.; Bondaflex Sil-A 700.

d. Pecora Corporation; AC-20+.

e. Schnee-Morehead, Inc.; SM 8200.

f. Tremco Incorporated; Tremflex 834.

2.05 JOINT SEALANT BACKING

A. General: Provide sealant backings of material that are nonstaining; are compatible with joint substrates, sealants, primers, and other joint fillers; and are approved for applications indicated by sealant manufacturer based on field experience and laboratory testing.

B. Cylindrical Sealant Backings: ASTM C 1330, [Type C (closed-cell material with a surface skin)] [Type O (open-cell material)] [Type B (bicellular material with a surface skin)] [ or any of the preceding types, as approved in writing by joint-sealant manufacturer for joint application indicated], and of size and density to control sealant depth and otherwise contribute to producing optimum sealant performance.

C. Bond-Breaker Tape: Polyethylene tape or other plastic tape recommended by sealant manufacturer for preventing sealant from adhering to rigid, inflexible joint-filler materials or joint surfaces at back of joint. Provide self-adhesive tape where applicable.

2.06 MISCELLANEOUS MATERIALS

A. Primer: Material recommended by joint-sealant manufacturer where required for adhesion of sealant to joint substrates indicated, as determined from preconstruction joint-sealant-substrate tests and field tests.

B. Cleaners for Nonporous Surfaces: Chemical cleaners acceptable to manufacturers of sealants and sealant backing materials, free of oily residues or other substances capable of staining or harming joint substrates and adjacent nonporous surfaces in any way, and formulated to promote optimum adhesion of sealants to joint substrates.

C. Masking Tape: Nonstaining, nonabsorbent material compatible with joint sealants and surfaces adjacent to joints.

PART 3 - EXECUTION

3.01 EXAMINATION

A. Examine joints indicated to receive joint sealants, with Installer present, for compliance with requirements for joint configuration, installation tolerances, and other conditions affecting joint-sealant performance.

B. Proceed with installation only after unsatisfactory conditions have been corrected.

3.02 PREPARATION

A. Surface Cleaning of Joints: Clean out joints immediately before installing joint sealants to comply with joint-sealant manufacturer's written instructions and the following requirements:

1. Remove all foreign material from joint substrates that could interfere with adhesion of joint sealant, including dust, paints (except for permanent, protective coatings tested and approved for sealant adhesion and compatibility by sealant manufacturer), old joint sealants, oil, grease, waterproofing, water repellents, water, surface dirt, and frost.

2. Clean porous joint substrate surfaces by brushing, grinding, mechanical abrading, or a combination of these methods to produce a clean, sound substrate capable of developing optimum bond with joint sealants. Remove loose particles remaining after cleaning operations above by vacuuming or blowing out joints with oil-free compressed air. Porous joint substrates include the following:

a. Concrete.

b. Masonry.

3. Remove laitance and form-release agents from concrete.

4. Clean nonporous joint substrate surfaces with chemical cleaners or other means that do not stain, harm substrates, or leave residues capable of interfering with adhesion of joint sealants. Nonporous joint substrates include the following:

a. Metal.

b. Glass.

c. Porcelain enamel.

d. Glazed surfaces of ceramic tile.

e. Fiberglass reinforced panels.

B. Joint Priming: Prime joint substrates where recommended by joint-sealant manufacturer or as indicated by preconstruction joint-sealant-substrate tests or prior experience. Apply primer to comply with joint-sealant manufacturer's written instructions. Confine primers to areas of joint-sealant bond; do not allow spillage or migration onto adjoining surfaces.

C. Masking Tape: Use masking tape where required to prevent contact of sealant or primer with adjoining surfaces that otherwise would be permanently stained or damaged by such contact or by cleaning methods required to remove sealant smears.

Remove tape immediately after tooling without disturbing joint seal.

3.03 INSTALLATION OF JOINT SEALANTS

A. General: Comply with joint-sealant manufacturer's written installation instructions for products and applications indicated, unless more stringent requirements apply.

B. Do not use solvent curing sealants in enclosed, occupied spaces.

C. Sealant Installation Standard: Comply with recommendations in ASTM C 1193 for use of joint sealants as applicable to materials, applications, and conditions indicated.

D. Install sealant backings of kind indicated to support sealants during application and at position required to produce cross-sectional shapes and depths of installed sealants relative to joint widths that allow optimum sealant movement capability.

1. Oversize backing 30 to 50 percent of joint width.

2. Do not leave gaps between ends of sealant backings.

3. Do not stretch, twist, puncture, or tear sealant backings.

4. Remove absorbent sealant backings that have become wet before sealant application and replace them with dry materials.

E. Install bond-breaker tape behind sealants where sealant backings are not used between sealants and backs of joints.

F. Install sealants using proven techniques that comply with the following and at the same time backings are installed:

1. Place sealants so they directly contact and fully wet joint substrates.

2. Completely fill recesses in each joint configuration.

3. Produce uniform, cross-sectional shapes and depths relative to joint widths that allow optimum sealant movement capability.

G. Tooling of Nonsag Sealants: Immediately after sealant application and before skinning or curing begins, tool sealants according to requirements specified in subparagraphs below to form smooth, uniform beads of configuration indicated; to eliminate air pockets; and to ensure contact and adhesion of sealant with sides of joint.

1. Remove excess sealant from surfaces adjacent to joints.

2. Use tooling agents that are approved in writing by sealant manufacturer and that do not discolor sealants or adjacent surfaces.

3. Provide concave joint profile per Figure 8A in ASTM C 1193, unless otherwise indicated.

4. Provide flush joint profile where indicated per Figure 8B in ASTM C 1193.

5. Provide recessed joint configuration of recess depth and at locations indicated per Figure 8C in ASTM C 1193.

a. Use masking tape to protect surfaces adjacent to recessed tooled joints.

H. Installation of Preformed Silicone-Sealant System: Comply with the following requirements:

1. Apply masking tape to each side of joint, outside of area to be covered by sealant system.

2. Apply silicone sealant to each side of joint to produce a bead of size complying with preformed silicone-sealant system manufacturer's written instructions and covering a bonding area of not less than 3/8 inch (10 mm). Hold edge of sealant bead 1/4 inch (6 mm) inside masking tape.

3. Within 10 minutes of sealant application, press silicone extrusion into sealant to wet extrusion and substrate. Use a roller to apply consistent pressure and ensure uniform contact between sealant and both extrusion and substrate.

4. Complete installation of sealant system in horizontal joints before installing in vertical joints. Lap vertical joints over horizontal joints. At ends of joints, cut silicone extrusion with a razor knife.

I. Installation of Preformed Foam Sealants: Install each length of sealant immediately after removing protective wrapping. Do not pull or stretch material. Produce seal continuity at ends, turns, and intersections of joints. For applications at low ambient temperatures, apply heat to sealant in compliance with sealant manufacturer's written instructions.

3.04 FIELD QUALITY CONTROL

A. Evaluation of Field-Adhesion Test Results: Sealants not evidencing adhesive failure from testing or noncompliance with other indicated requirements will be considered satisfactory. Remove sealants that fail to adhere to joint substrates during testing or to comply with other requirements. Retest failed applications until test results prove sealants comply with indicated requirements.

3.05 CLEANING

A. Clean off excess sealant or sealant smears adjacent to joints as the Work progresses by methods and with cleaning materials approved in writing by manufacturers of joint sealants and of products in which joints occur.

B. Repair or replace defaced or disfigured finishes caused by work of this Section.

3.06 PROTECTION

A. Protect joint sealants during and after curing period from contact with contaminating substances and from damage resulting from construction operations or other causes so sealants are without deterioration or damage at time of Substantial Completion. If, despite such protection, damage or deterioration occurs, cut out and remove damaged or deteriorated joint sealants immediately so installations with repaired areas are indistinguishable from original work.

3.07 JOINT-SEALANT SCHEDULE

A. Joint-Sealant Application: Exterior joints in horizontal traffic…