Attachment 1 - Specifications.pdf

PROJECT SPECIFICATIONS

NFJD BUILDING ROOF REPLACEMENT INDEX 1

SPECIFICATION

INDEX

SECTION 012000 MOBILIZATION PAYMENT PROCEDURES

SECTION 061000 ROUGH CARPENTRY

SECTION 061053 MISCELLANEOUS ROUGH CARPENTRY

SECTION 061600 SHEATHING

SECTION 072100 THERMAL INSULATION

SECTION 072500 WEATHER BARRIER

SECTION 073110 ASPHALT SHINGLES

SECTION 073120 REMOVAL OF EXISTING ROOFING

SECTION 073129 WOOD SHINGLES

SECTION 074110 METAL ROOF PANELS

SECTION 076000 FLASHING AND SHEET METAL

SECTION 077100 MANUFACTURED ROOF SPECIALTIES

NFJD BUILDING ROOF REPLACEMENT MOBILIZATION PAYMENT 2

PROCEDURES.

SECTION 012000

MOBILIZATION PAYMENT PROCEDURES

PART 1 – GENERAL

1.1 SUMMARY

A. This work shall consist of preparatory work and operations necessary for the movement of personnel, equipment, supplies, and incidentals to the project site, and for all other work and operations that must be performed or that cause costs to be incurred prior to beginning work on the various items on the project site. This item also includes the final clean-up of the site. All debris generated from the project shall be removed and legally disposed of off Forest Service lands.

B. Mobilization for option items is incidental to pay items.

PART 2 – PRODUCTS (NOT USED)

PART 3 – EXECUTION (NOT USED)

PART 4 – MEASUREMENT AND PAYMENT

4.1 PROGRESS PAYMENTS WILL BE MADE AS FOLLOWS

A. When 5 percent or more of the original contract amount is earned from other pay items, 50 percent of the amount for mobilization, or 5 percent of the original contract amount, whichever is less, will be paid.

B. When 10 percent or more of the original contract amount is earned from other pay items, 100 percent of the amount for mobilization, or 10 percent of the original contract amount, whichever is less, will be paid.

C. Upon completion of all work on the project, any unpaid amount for mobilization will be paid.

D. The total of all payments shall not exceed the original contract amount for this item.

END OF SECTION

NFJD BUILDING ROOF REPLACEMENT ROUGH CARPENTRY

SECTION 061000

ROUGH CARPENTRY

A. Provide rough carpentry:

a. Wood grounds, nailers, and blocking.

b. Wood furring.

c. Rooftop support curbs.

d. Backing Panels

e. Sheathing.

f. Underlayment.

B. It is anticipated that approximately 30% of roof sheathing damage will be found, and replacement is included in the bid schedule. The contractor shall report these conditions if found.

1.2 SUBMITTALS

A. Product Data: Submit the manufacturer's product data and installation instructions for each material and product used.

1.3 QUALITY ASSURANCE

A. Comply with governing codes and regulations. Provide products of acceptable manufacturers, which have been in satisfactory use in similar service for three years. Use experienced installers. Deliver, handle, and store materials in accordance with the manufacturer's instructions.

B. Lumber Standards and Grade Stamps: DOC PS 20, American Softwood Lumber Standard, and inspection agency grade stamps.

C. Construction Panel Standards: DOC PS 1, U.S. Product Standard for Construction and Industrial.

1. Plywood; APA PRP-108.

PART 2 - PRODUCTS

2.1 MATERIALS

A. Dimension Lumber:

1. Structural Framing: No. 2 grade.

2. Species: Any species of grade indicated.

B. Boards:

1. Exposed Boards: 15 percent moisture content.

2. Concealed Boards: 19 percent moisture content.

C. Miscellaneous Lumber:

1. Moisture Content: 19 percent.

2. Grade: Standard grade light framing.

D. Engineered Wood Products:

NFJD BUILDING ROOF REPLACEMENT ROUGH CARPENTRY

1. Laminated-Veneer Lumber: A composite of wood veneers with grain primarily parallel to member lengths, manufactured with an exterior-type adhesive complying with ASTM D 2559.

2. Parallel-Strand Lumber: A composite of wood strand elements with grain primarily parallel to member lengths, manufactured with an exterior-type adhesive complying with ASTM D 2559.

3. Prefabricated Wood I Joists: Stress-graded lumber bonded to APA performance-rated panel with exterior type adhesive; design stresses for the use intended.

4. Composite Joists and Headers: Laminated lumber veneers; design stresses for the use intended.

E. Construction Panels:

1. Combination Subfloor-Underlayment: Exposure 1, Structural I, Underlayment.

2. Combination Subfloor-Underlayment: Exposure 1, Underlayment.

3. Oriented-Strand-Board, Combination Subfloor-Underlayment: Exposure 1.

4. Plywood Subflooring: Exterior, Structural I.

5. Plywood Subflooring: Exposure 1, Structural I.

6. Plywood Roof Sheathing: Exterior, Structural I, Sheathing.

7. Plywood Underlayment for Resilient Flooring: DOC PS 1, Exterior A-C with a fully sanded face.

8. Plywood Underlayment for Carpet: DOC PS 1, Interior Underlayment.

F. Auxiliary Materials:

1. Building Paper: Asphalt-saturated organic felt, ASTM D 226, Type

I, No. 15 felt, unperforated.

2. Sill Sealer Gaskets: Glass fiber strip resilient insulation.

3. Framing Anchors and Fasteners: Non-corrosive, suitable for load and exposure. Drywall screws are not acceptable.

PART 3 - EXECUTION

3.1 INSTALLATION

A. Securely attach rough carpentry work to the substrate by anchoring and fastening as indicated, B. Plywood: Comply with applicable recommendations contained in APA Form No.

E30K, "APA

Design/Construction Guide: Residential & Commercial" C. Provide nailers, blocking, and grounds where required. Set work plumb, level, and accurately cut.

D. Install materials and systems in accordance with the manufacturer's instructions and approved submittals. Install materials and systems in proper relation with adjacent construction. Coordinate with other work.

E. Comply with the manufacturer's requirements for cutting, handling, fastening, and working treated materials.

F. Restore damaged components. Protect work from damage.

NFJD BUILDING ROOF REPLACEMENT MISCELLANEOUS 5

SECTION 061053

MISCELLANEOUS ROUGH CARPENTRY

A. Section Includes:

1. Framing with dimension lumber.

2. Wood blocking and nailers.

3. Wood furring.

4. Wood sleepers.

B. Related Requirements:

1. Section 061753 "Shop-Fabricated Wood Trusses."

1.2 DEFINITIONS

A. Dimension Lumber: Lumber of 2 inches nominal or greater but less than 5 inches nominal in least dimension.

B. Lumber grading agencies, and the abbreviations used to reference them, include the following:

1. WCLIB: West Coast Lumber Inspection Bureau.

2. WWPA: Western Wood Products Association.

1.3 QUALITY ASSURANCE

A. Testing Agency Qualifications: For testing agency providing classification marking for fire-retardant treated material, an inspection agency acceptable to authorities having jurisdiction that periodically performs inspections to verify that the material bearing the classification marking is representative of the material tested.

1.4 DELIVERY, STORAGE, AND HANDLING

A. Stack lumber flat with spacers beneath and between each bundle to provide air circulation. Protect lumber from the weather by covering it with waterproof sheeting, securely anchored. Provide air circulation around stacks and under coverings.

PART 2 – PRODUCTS

2.1 WOOD PRODUCTS, GENERAL

A. Lumber: DOC PS 20 and applicable rules of grading agencies indicated. If no grading agency is indicated, provide lumber that complies with the applicable rules of any rules-writing agency certified by the ALSC Board of Review. Provide lumber graded by an agency certified by the ALSC Board of Review to inspect and grade lumber under the rules indicated.

NFJD BUILDING ROOF REPLACEMENT MISCELLANEOUS 6

1. Factory mark each piece of lumber with the grade stamp of the grading agency.

2. Provide dressed lumber, S4S, unless otherwise indicated.

B. Maximum Moisture Content of Lumber: 15 percent for 2-inch nominal (38-mm actual) thickness or less.

2.2 DIMENSION LUMBER FRAMING

A. Other Framing: No. 2 the following species:

1. Douglas fir-larch; WCLIB or WWPA.

2. Douglas fir-larch (north); NLGA.

2.3 MISCELLANEOUS LUMBER

A. General: Provide miscellaneous lumber indicated and lumber for support or attachment of other construction, including the following:

1. Blocking.

2. Nailers.

3. Furring.

B. For items of dimension lumber size, provide Construction or No. 2 and the following species:

1. Western Woods; WCLIB or WWPA

C. For concealed boards, provide lumber with 15 percent maximum moisture content and the following species and grades:

1. Western Woods, No. 2 Common grade; WCLIB or WWPA.

D. For blocking not used for attachment of other construction, Utility, Stud, or No. 3 grade lumber of any species may be used provided that it is cut and selected to eliminate defects that will interfere with its attachment and purpose.

E. For blocking and nailers used for attachment of other construction, select, and cut lumber to eliminate knots and other defects that will interfere with the attachment of other work.

F. For furring strips for installing plywood or hardboard paneling, select boards with no knots capable of producing bent-over nails and damage to the paneling.

2.4 FASTENERS

A. General: Provide fasteners of size and type indicated that comply with requirements specified in this article for material and manufacture.

B. Nails, Brads, and Staples: ASTM F 1667.

C. Power-Driven Fasteners: NES NER-272.

NFJD BUILDING ROOF REPLACEMENT MISCELLANEOUS 7

D. Wood Screws: ASME B18.6.1.

PART 3 – EXECUTION

3.1 INSTALLATION, GENERAL

A. Set carpentry to required levels and lines, with members plumb, true to line, cut, and fit. Fit carpentry to other construction; scribe and cope as needed for accurate fit.

Locate nailers, blocking, and similar supports to comply with requirements for attaching other construction.

B. Framing Standard: Comply with AF&PA's WCD 1, "Details for Conventional Wood Frame Construction," unless otherwise indicated.

C. Do not splice structural members between supports unless otherwise indicated.

D. Provide blocking and framing as indicated and as required to support facing materials, fixtures, specialty items, and trim.

1. Provide metal clips for fastening gypsum board or lath at corners and intersections where framing or blocking does not provide a surface for fastening the edges of panels. Space clips not more than 16 inches o.c.

E. Sort and select lumber so that natural characteristics will not interfere with installation or with fastening other materials to lumber. Do not use materials with defects that interfere with the function of members or pieces that are too small to use with the minimum number of joints or optimum joint arrangement.

F. Securely attach carpentry work to the substrate by anchoring and fastening as indicated, complying with the following:

1. NES NER-272 for power-driven fasteners.

2. Table 2304.9.1, "Fastening Schedule," in ICC's International Building Code.

3. Table R602.3(1), "Fastener Schedule for Structural Members," and Table

R602.3(2), "Alternate Attachments," in ICC's International Residential Code for One- and Two-Family Dwellings.

G. Use steel common nails unless otherwise indicated. Select fasteners of the size that will not fully penetrate members where the opposite side will be exposed to view or will receive finish materials. Make tight connections between members. Install fasteners without splitting wood. Drive nails snugly but do not countersink nail heads unless otherwise indicated.

3.2 PROTECTION

A. Protect wood that has been treated with inorganic boron (SBX) from the weather. If, despite protection, inorganic boron-treated wood becomes wet, apply EPA-registered borate treatment. Apply borate solution by spraying to comply with the EPA-registered label.

NFJD BUILDING ROOF REPLACEMENT MISCELLANEOUS 8

B. Protect miscellaneous rough carpentry from the weather. If, despite protection, miscellaneous rough carpentry becomes wet, apply EPA-registered borate treatment.

Apply borate solution by spraying to comply with the EPA-registered label.

NFJD BUILDING ROOF REPLACEMENT THERMAL INSULATION 9

SECTION 061600

SHEATHING

1.1 RELATED DOCUMENTS

A. Drawings and general provisions of the Contract apply to this Section.

1.2 SUMMARY

1. Roof sheathing.

B. Related Requirements:

1. Section 061053 "Miscellaneous Rough Carpentry.”

A. Testing Agency Qualifications: For testing agency providing classification marking for fire-retardant-treated material, an inspection agency acceptable to authorities having jurisdiction that periodically performs inspections to verify that the material bearing the classification marking is representative of the material tested.

A. Stack panels flat with spacers beneath and between each bundle to provide air circulation. Protect sheathing from the weather by covering it with waterproof sheeting, securely anchored. Provide air circulation around stacks and under coverings.

2.1 ROOF SHEATHING

A. Plywood Roof Sheathing: Exterior, Structural I, sheathing.

1. Span Rating: Not less than 24/0

2. Nominal Thickness: Not less than 3/4 inch.

B. Oriented-Strand-Board Roof Sheathing: Exposure 1, Structural I, sheathing.

1. Span Rating: Not less than 24/0.

2. Nominal Thickness: Not less than 3/4 inch.

2.2 FASTENERS

A. General: Provide fasteners of size and type indicated that comply with requirements specified in this article for material and manufacture.

1. For roof sheathing, provide fasteners with hot-dip zinc coating complying with ASTM A 153/A 153M.

NFJD BUILDING ROOF REPLACEMENT THERMAL INSULATION 10

B. Nails, Brads, and Staples: ASTM F 1667.

C. Power-Driven Fasteners: NES NER-272.

D. Wood Screws: ASME B18.6.1.

3.1 INSTALLATION, GENERAL

A. Do not use materials with defects that impair the quality of sheathing or pieces that are too small to use with a minimum number of joints or optimum joint arrangement.

Arrange joints so that pieces do not span between fewer than three support members.

B. Cut panels at penetrations, edges, and other obstructions of work; fit tightly against abutting construction unless otherwise indicated.

C. Securely attach to substrate by fastening as indicated, complying with the following:

1. NES NER-272 for power-driven fasteners.

2. Table 2304.9.1, "Fastening Schedule," in ICC's "International Building

Code."

3. Table R602.3(1), "Fastener Schedule for Structural Members," and Table

R602.3(2), "Alternate Attachments," in ICC's "International Residential Code for One- and Two-Family Dwellings."

D. Use common wire nails unless otherwise indicated. Select fasteners of a size that will not fully penetrate members where the opposite side will be exposed to view or will receive finish materials. Make tight connections. Install fasteners without splitting wood.

E. Coordinate roof sheathing installation with flashing and joint-sealant installation so these materials are installed in a sequence and manner that prevent exterior moisture from passing through the completed assembly.

F. Do not bridge building expansion joints; cut and space the edges of panels to match the spacing of structural support elements.

G. Coordinate sheathing installation with the installation of materials installed over sheathing so sheathing is not exposed to precipitation or left exposed at end of the workday when rain is forecast.

NFJD BUILDING ROOF REPLACEMENT THERMAL INSULATION 11

SECTION 072100

THERMAL INSULATION

1. Glass-fiber blanket insulation.

2. Loose-fill insulation.

A. Surface-Burning Characteristics: As determined by testing identical products according to ASTM E 84 by a qualified testing agency. Identify products with appropriate markings of applicable testing agencies.

A. Protect insulation materials from physical damage and deterioration due to moisture, soiling, and other sources. Store inside and in a dry location. Comply with the manufacturer's written instructions for handling, storing, and protecting during installation.

2.1 GLASS-FIBER BLANKET INSULATION

A. Manufacturers: Subject to compliance with requirements, available manufacturers offering products that may be incorporated into the Work include, but are not limited to, the following:

1. CertainTeed Corporation.

2. Guardian Building Products, Inc.

3. Johns Manville.

4. Knauf Insulation.

5. Owens Corning.

B. Unfaced, Glass-Fiber Blanket Insulation: ASTM C 665, Type I; with maximum flame-spread and smoke-developed indexes of 25 and 50, respectively, per ASTM E 84; passing ASTM E 136 for combustion characteristics.

C. Polypropylene-Scrim-Kraft-Faced, Glass-Fiber Blanket Insulation: ASTM C 665, Type II (non-reflective faced), Class A (faced surface with a flame-spread index of 25 or less); Category 1 (the membrane is a vapor barrier).

NFJD BUILDING ROOF REPLACEMENT THERMAL INSULATION 12

D. Kraft-Faced, Glass-Fiber Blanket Insulation: ASTM C 665, Type II (non-reflective faced), Class C (faced surface not rated for flame propagation); Category 1 (the membrane is a vapor barrier).

E. Eave Ventilation Troughs: Preformed, rigid fiberboard or plastic sheets designed and sized to fit between roof framing members and to provide cross ventilation between insulated attic spaces and vented eaves.

F. Sustainability Requirements: Provide glass-fiber blanket insulation as follows:

1. Free of Formaldehyde: Insulation manufactured with 100 percent acrylic binders and no formaldehyde.

G. Low Emitting: Insulation tested according to ASTM D 5116 and shown to emit less than 0.05 ppm formaldehyde.

2.2 LOOSE-FILL INSULATION

A. Cellulosic-Fiber Loose-Fill Insulation: ASTM C 739, chemically treated for flame-resistance, processing, and handling characteristics.

B. Glass-Fiber Loose-Fill Insulation: ASTM C 764, Type II for poured application; with maximum flame-spread and smoke-developed indexes of 5, per ASTM E 84.

3.1 PREPARATION

A. Clean substrates of substances that are harmful to insulation or vapor retarders, including removing projections capable of puncturing vapor retarders, or that interfere with insulation attachment.

3.2 INSTALLATION, GENERAL

A. Comply with the insulation manufacturer's written instructions applicable to products and applications indicated.

B. Install insulation that is undamaged, dry, and unsoiled and that has not been left exposed to ice, rain, or snow at any time.

C. Extend insulation to envelop the entire area to be insulated. Cut and fit tightly around obstructions and fill voids with insulation. Remove projections that interfere with placement.

D. Provide sizes to fit applications indicated and selected from the manufacturer's standard thicknesses, widths, and lengths. Apply a single layer of insulation units to produce the thickness indicated unless multiple layers are otherwise shown or required to make up the total thickness.

NFJD BUILDING ROOF REPLACEMENT THERMAL INSULATION 13

3.3 INSTALLATION OF INSULATION FOR FRAMED CONSTRUCTION

A. Apply insulation units to substrates by the method indicated, complying with the manufacturer's written instructions. If no specific method is indicated, bond units to the substrate with adhesive or use mechanical anchorage to provide permanent placement and support of units.

B. Glass-Fiber or Mineral-Wool Blanket Insulation: Install in cavities formed by framing members according to the following requirements:

1. Use insulation widths and lengths that fill the cavities formed by framing members. If more than one length is required to fill the cavities, provide lengths that will produce a snug fit between ends.

2. Place insulation in cavities formed by framing members to produce a friction fit between the edges of insulation and adjoining framing members.

3. Maintain a 3-inch clearance of insulation around recessed lighting fixtures not rated for or protected from contact with insulation.

4. Install eave ventilation troughs between roof framing members in insulated attic spaces at vented eaves.

5. For wood-framed construction, install blankets according to ASTM C 1320 and as follows:

a. With faced blankets having stapling flanges, secure insulation by inset, and stapling flanges to sides of framing members.

b.With faced blankets having stapling flanges, lap blanket flange over the flange of the adjacent blanket to maintain continuity of vapor retarder once finish material is installed over it.

6. Vapor-Retarder-Faced Blankets: Tape joints and ruptures in vapor-retarder facings and seal each continuous area of insulation to ensure airtight installation.

C. Loose-Fill Insulation: Apply according to ASTM C 1015 and the manufacturer's written instructions. Level horizontal applications to uniform thickness as indicated, lightly settle to uniform density, but do not compact excessively.

1. For cellulosic-fiber loose-fill insulation, comply with CIMA's Bulletin #2, "Standard Practice for Installing Cellulose Insulation."

3.4 PROTECTION

A. Protect installed insulation and vapor retarders from damage due to harmful weather exposures, physical abuse, and other causes. Provide temporary coverings or enclosures where insulation is subject to abuse and cannot be concealed and protected by permanent construction immediately after installation.

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 14

SECTION 072500

WEATHER BARRIERS

1. Building paper.

2.1 WATER-RESISTIVE BARRIER

A. Building Paper: ASTM D 226, Type 2 (No. 30 asphalt-saturated organic felt), unperforated.

B. Building Paper: Water-vapor-permeable, asphalt-saturated kraft building paper.

1. Water vapor transmission no less than 35 g/sq. m x 24 hr. per ASTM D 779.

2. Water resistance no less than 20 minutes per ASTM F 1249.

2.2 MISCELLANEOUS MATERIALS

A. Nails and Staples: ASTM F 1667.

3.1 WATER-RESISTIVE BARRIER INSTALLATION

A. Cover the exposed exterior surface of the sheathing with a water-resistive barrier securely fastened to the framing immediately after the sheathing is installed.

B. Cover sheathing with a water-resistive barrier as follows:

1. Cut back barrier 1/2 inch on each side of the break in supporting members at expansion or control-joint locations.

2. Apply barrier to cover vertical flashing with a minimum 4-inch overlap unless otherwise indicated.

C. Building Paper: Apply horizontally with a 2-inch overlap and a 6-inch end lap; fasten to sheathing with galvanized staples or roofing nails.

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 15

SECTION 073110

ASPHALT SHINGLES

A. This Section includes the following:

1. Asphalt shingles.

2. Felt underlayment.

3. Ridge vents.

B. Related Sections include the following:

1. Section 073120 – Removal of Existing Roofing

2. Section 076210 – Sheet Metal Flashing and Trim

3. Statement of Work

1.2 DEFINITIONS

A. Roofing Terminology: Refer to ASTM D 1079 and the glossary of NRCA's "The

NRCA Roofing and Waterproofing Manual" for definitions of terms related to roofing work in this Section.

1.3 SUBMITTALS

A. Product Data: For each type of product indicated.

B. Warranties: Special warranties are specified in this Section.

C. Catalog cuts or brochures, fully describing all materials and color samples for Government selection.

1.4 QUALITY ASSURANCE

A. Installer Qualifications: A firm or individual that is approved, authorized, or licensed by an asphalt shingle roofing system manufacturer to install the roofing system indicated.

B. Source Limitations: Obtain ridge and hip cap shingles through one source from a single asphalt shingle manufacturer.

C. Fire-Test-Response Characteristics: Provide asphalt shingle and related roofing materials with the fire-test-response characteristics indicated, as determined by testing identical products per test method below by UL or another testing and

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 16

inspecting agency acceptable to authorities having jurisdiction. Identify materials with appropriate markings of applicable testing and inspecting agencies.

1. Exterior Fire-Test Exposure: Class A; ASTM E 108 or UL 790, for application and roof slopes indicated.

1.5 DELIVERY, STORAGE, AND HANDLING

A. Store roofing materials in a dry, well-ventilated, weathertight location according to the asphalt shingle manufacturer's written instructions. Store underlayment rolls on end on pallets or other raised surfaces. Do not double-stack rolls.

1. Handle, store, and place roofing materials in a manner to avoid significant or permanent damage to the roof deck or structural supporting members.

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

1.6 PROJECT CONDITIONS

A. Weather Limitations: Proceed with installation only when existing and forecasted weather conditions permit asphalt shingle roofing to be performed according to the manufacturer's written instructions and warranty requirements.

1. Install self-adhering sheet underlayment within the range of ambient and substrate temperatures recommended by the manufacturer.

1.7 WARRANTY

A. Material Warranty Period: 25 years from the date of Substantial Completion.

B. Wind-Speed Warranty Period: Asphalt shingles will resist blow-off or damage caused by wind speeds up to 80 mph (36 m/s) for 5 years from the date of Substantial Completion.

C. Algae-Discoloration Warranty Period: Asphalt shingles will not discolor for five years from the date of Substantial Completion.

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

2.1 MANUFACTURERS

A. In other Part 2 articles where titles below introduce lists, the following requirements apply to product selection:

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 17

1. Available Products: Subject to compliance with requirements, products that may be incorporated into the Work include, but are not limited to, products specified.

2. For any manufacturer approved by the Government, architectural-style asphalt shingles are required.

2.2 GLASS-FIBER-REINFORCED ASPHALT SHINGLES

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

1. Available Products:

a. Atlas Roofing Corporation b.Celotex Corporation

c. CertainTeed Corporation d.Elk Corporation of Dallas;

e. EMCO Limited, Building Products Division

f. GAF Materials Corporation g.Georgia-Pacific Corporation h.Globe Building Materials, Inc

i. IKO

j. Malarkey Roofing Company k.Owens Corning

l. PABCO Roofing Products

m. TAMKO Roofing Products, Inc

2. Butt Edge: Straight cut.

3. Strip Size: Manufacturer's standard.

4. Algae Resistance: Granules treated to resist algae discoloration.

5. Color and Blends: As indicated by manufacturer's designations.

B. Multi-tab-Strip Asphalt Shingles: ASTM D 3462, glass-fiber reinforced, mineral-granule surfaced, and self-sealing.

1. Available Products:

a. Atlas Roofing Corporation b.CertainTeed Corporation

c. GAF Materials Corporation d.Georgia-Pacific Corporation

e. Globe Building Materials, Inc

f. IKO g.Malarkey Roofing Company h.Owens Corning

i. PABCO Roofing Products;

j. TAMKO Roofing Products, Inc

2. Tab Arrangement: Four tab, regularly spaced.

3. Cutout Shape: Square.

4. Butt Edge: Straight cut.

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 18

5. Strip Size: Manufacturer's standard.

6. Algae Resistance: Granules treated to resist algae discoloration.

7. Color and Blends: As indicated by manufacturer's designations.

C. Hip and Ridge Shingles: Manufacturer's standard units to match asphalt shingles.

2.3 UNDERLAYMENT MATERIALS

A. Felts: ASTM D 226 or ASTM D 4869, Type I asphalt-saturated organic felts, non-perforated, 30 lb.

2.4 ACCESSORIES

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

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

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

C. Felt Underlayment Nails: Aluminum, stainless-steel, or hot-dip galvanized steel wire with low profile capped heads or disc caps, 1-inch minimum diameter.

2.5 FALL PROTECTION ANCHORS

A. Ridge-It Anchor® by Guardian Fall Protection, Performance Safety Gear, or approved equivalent product.

3.1 REMOVAL

A. Remove all materials in accordance with Section 073120 – Removal of Existing Roofing.

3.2 EXAMINATION

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

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 19

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

3. For the record, prepare a written report, endorsed by Installer, listing conditions detrimental to the performance of work.

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

Replace all roof sheathing and/or purlins that are damaged or rotted with materials matching existing.

3.3 UNDERLAYMENT INSTALLATION

A. Double-Layer Felt Underlayment: Install double layers of felt underlayment on the roof deck and over self-adhering underlayment perpendicular to the roof slope in parallel courses. Install a 19-inch-wide starter course at the eaves and completely cover it with a full-width second course. Install succeeding courses lapping previous courses 19 inches in shingle fashion. Lap ends a minimum of 6 inches. Stagger end laps between succeeding courses at least 72 inches. Fasten with nails or staples as per the manufacturer’s recommendations.

1. Terminate felt underlayment extended up not less than 4 inches against sidewalls, curbs, chimneys and other roof projections.

B. Metal-Flashed Open Valley Underlayment: Install one layer of 36-inch-wide felt underlayment centered in the valley. Stagger end laps between layers at least 72 inches. Lap ends of each layer at least 12 inches in direction to shed water, and seal with asphalt roofing cement. Fasten each layer to the roof deck with roofing nails.

1. The lap roof deck felt underlayment over the first layer of the valley felt underlayment at least 6 inches.

3.4 METAL FLASHING INSTALLATION

A. General: Install metal flashings and other sheet metal to comply with requirements in Section 076210 "Sheet Metal Flashing and Trim."

1. Install metal flashings according to recommendations in ARMA's "Residential Asphalt Roofing Manual" and asphalt shingle recommendations in NRCA's "The NRCA Roofing and Waterproofing Manual."

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

C. Open Valley Flashings: Install centrally in valleys, lapping ends at least 8 inches in direction to shed water. Fasten the upper end of each length to the roof deck beneath the overlap.

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 20

1. Secure hemmed flange edges into metal cleats spaced 12 inches apart and fastened to the roof deck.

2. Adhere a 9-inch-wide strip of the self-adhering sheet to metal flanges and to the self-adhering sheet underlayment.

D. Rake Drip Edges: Install rake drip edge flashings over underlayment and fasten them to the roof deck.

E. Eave Drip Edges: Install eave drip edge flashings below the underlayment and fasten them to roof sheathing.

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

3.5 FALL PROTECTION ANCHORS

A. Install fall protection anchors on the ridge in locations identified by CO.

B. Install per manufacturer’s recommendations.

3.6 ASPHALT SHINGLE INSTALLATION

A. Install asphalt shingles according to the manufacturer's written instructions, recommendations in ARMA's "Residential Asphalt Roofing Manual," and asphalt shingle recommendations in NRCA's "The NRCA Roofing and Waterproofing Manual."

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

1. Extend asphalt shingles 3/4 inch over fascia at eaves and rakes.

2. Install starter strip along rake edge.

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

D. Fasten asphalt shingle strips with a minimum of five roofing nails located according to the manufacturer's written instructions.

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

2. When the ambient temperature during installation is below 50 deg F, seal asphalt shingles with asphalt roofing cement spots.

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 21

E. Open Valleys: Cut and fit asphalt shingles at open valleys, trimming upper concealed corners of shingle strips. Maintain uniform width of exposed open valley from highest to lowest point.

1. Set valley edge of asphalt shingles in a 3-inch-wide bed of asphalt roofing cement.

2. Do not nail asphalt shingles to metal open valley flashings.

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

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

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

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SECTION 073129

WOOD SHINGLES

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Wood roof shingles.

2. Wood roof shakes.

3. Underlayment and shake interlayment materials.

4. Ridge vents.

5. Metal flashing and trim.

B. Related Requirements:

1. Section 061000 "Rough Carpentry" for wood furring.

2. Section 077200 "Roof Accessories" for accessories not specified in this

Section.

1.2 ALLOWANCES

A. See Section 012100 "Allowances" for the description of allowances affecting items specified under this Section.

1.3 DEFINITIONS

A. Roofing Terminology: See ASTM D1079 for definitions of terms related to roofing

Work in this Section.

1.4 ACTION SUBMITTALS

A. Product Data:

1. Wood roof shingles.

2. Underlayment and shake interlayment materials.

3. Ridge vents.

4. Metal flashing and trim.

1.5 INFORMATIONAL SUBMITTALS

A. Sample Warranty: For manufacturer's materials warranty.

1.6 CLOSEOUT SUBMITTALS

A. Maintenance Data: For wood products to include in maintenance manuals.

B. Materials warranties.

C. Roofing Installer's warranty.

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 23

1.7 MAINTENANCE MATERIAL SUBMITTALS

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

1. Wood Roof Shingles: [100 sq. ft. (9.3 sq. m)] of each size and type, in unbroken bundles.

1.8 DELIVERY, STORAGE, AND HANDLING

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

B. Store underlayment rolls on end, on pallets, or on 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 the roof deck or structural supporting members.

1.9 FIELD CONDITIONS

A. Environmental Limitations: Proceed with installation only when existing and forecasted weather conditions permit product installation and related Work to be performed in accordance with the manufacturer's written instructions and warranty requirements.

1. Install self-adhering, polymer-modified bitumen sheet underlayment within the range of ambient and substrate temperatures recommended in writing by the manufacturer.

1.10 WARRANTY

A. Materials Warranty: Manufacturer's warranty administered by CSSB and on CSSB's standard form in which the manufacturer agrees to repair or replace CSSB-labeled products that fail in materials within the specified warranty period. Material failures include manufacturing defects that result in leaks.

1. Materials Warranty Period: Limited lifetime from date of Substantial Completion.

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

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 24

1. Warranty Period: [Five] years from the date of Substantial Completion.

PART 2 - PRODUCTS

2.1 SOURCE LIMITATIONS

A. Obtain each type of product from a single source from a single manufacturer.

2.2 PERFORMANCE REQUIREMENTS

A. Exterior Fire-Test Exposure: Provide roofing materials identical to those of assemblies tested for fire resistance in accordance with ASTM E108 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 agencies.

1. Wood Products: [Class B]

a. Fire-Retardant Treatment: Exterior-type pressure treatment complying with AWPA U1 and AWPA T1.

b. Accelerated Weathering: Subject test specimens to ASTM D2898 Method A before testing.

c. Identification: Attach a label to each bundle of wood products; include the identification mark of the testing agency acceptable to authorities having jurisdiction and identify the manufacturer, chemical treatment, method of application, the purpose of treatment, and warranties available.

B. Decay Resistance: Provide wood products treated in accordance with AWPA U1 and AWPA T1, chromated copper arsenate (CCA) pressure treatment; with a minimum of 0.40-lb/cu. ft. (6.4-kg/cu. m) retention.

1. Identification: Attach a label to each bundle of wood products; identify the manufacturer, chemical treatment, method of application, the purpose of treatment, and warranties available.

2.3 WOOD ROOF SHINGLES

1. Grade: No. 1, with starter courses of [No. 1] [No. 2] [No. 3].

2. Size: [24 inches (610 mm) long; 0.50 inch (13 mm) thick] at the butt.

B. Cedar Shingle Ridge Units: [Manufactured] smooth-sawn western red cedar caps for ridges and hips of the same thickness as shingles, 7 inches (178 mm) wide;

beveled, alternately overlapped, and nailed.

1. Grade: No. 1.

2. Length: [18 inches (457 mm)].

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 25

C. Fancy-Butt Cedar Shingles: Clear heartwood red cedar, No. 1 grade, with butt shape indicated.

1. Butt Shape: [Diagonal] [Fish scale] [Diamond] [Square] [Half cove]

[Hexagonal] [Octagonal] [Round] [Arrow] <Insert shape>.

2. Size: [18 inches (457 mm)] long by 5 inches (127 mm) wide, in manufacturer's standard thickness.

2.4 UNDERLAYMENT AND SHAKE INTERLAYMENT MATERIALS

A. Felt: Asphalt-saturated organic felts, nonperforated and complying with the following:

1. ASTM D226/D226M: [Type I] [Type II].

2. ASTM D4869/D4869M: [Type I] [Type II] [Type III] [Type IV].

3. Use as [underlayment]

B. Self-Adhering, Polymer-Modified Bitumen Sheet: ASTM D1970/D1970M, minimum [55-mil- (1.4-mm-)] [50-mil- (1.3-mm-)] [40-mil- (1.0-mm-)] thick sheet; glass-fiber-mat-reinforced, polymer-modified asphalt; with slip-resistant top surface and release backing; cold applied.[ Provide primer for adjoining concrete, masonry, and metal surfaces to receive underlayment.]

1. Top Surface: [Sand] [Granule] [Textured polymer film] [Polyester].

2.5 RIDGE VENTS

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

1. Minimum Net Free Area: 18 sq in/lin ft

2. Width: 11.5”

3. Thickness: 7/8”

4. Features:

a. Nonwoven geotextile filter strips.

b. External deflector baffles.

2.6 ACCESSORIES

A. Asphalt Roofing Cement: ASTM D4586/D4586M, Type II, asbestos free.

B. Elastomeric Flashing Sealant: ASTM C920, Type S, Grade NS, one-part, non-sag, elastomeric polymer sealant; of class and use classifications required to seal joints and remain watertight; recommended in writing by the manufacturer for installation of flashing systems.

C. Drainage Mat: Manufacturer's standard, compression-resisting, three-dimensional, nonwoven, entangled filament, nylon mat designed to permit air movement and to drain incidental moisture by gravity.

D. Roofing Nails: ASTM F1667, [stainless steel, Type 304,] [stainless steel, Type 316,] [hot-dip galvanized-steel] box-type wire nails, sharp pointed, and of

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 26

sufficient length to penetrate a minimum of 3/4 inch (19 mm) into sheathing or to penetrate through roof sheathing less than 3/4 inch (19 mm) thick.

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

E. Underlayment Nails: Aluminum, stainless steel, or hot-dip galvanized-steel wire nails with low-profile metal or plastic caps, 1-inch- (25-mm-) minimum diameter.

2.7 METAL FLASHING AND TRIM

A. Comply with requirements in Section 076200 "Sheet Metal Flashing and Trim."

1. Sheet Metal: [Copper] [Stainless steel] [Zinc-tin alloy coated copper] [Anodized aluminum] [Aluminum, mill finished] <Insert requirements>.

B. Fabricate sheet metal flashing and trim to comply with recommendations in SMACNA's "Architectural Sheet Metal Manual" that apply to the design, dimensions, metal, and other characteristics of the item unless otherwise specified in this Section or indicated on Drawings.

1. Apron Flashings: Fabricate with a lower flange extending a minimum of [4 inches (102 mm)] [6 inches (152 mm)] over and [4 inches (102 mm)] beyond each side of downslope wood roofing and [6 inches (152 mm)] up the vertical surface.

2. Step Flashings: Fabricate with a head lap of 3 inches (76 mm) and a minimum extension of [4 inches (102 mm)] [5 inches (127 mm)] both horizontally and vertically.

3. Cricket and Backer Flashings: Fabricate with a concealed flange extending a minimum of [18 inches (457 mm)] [24 inches (610 mm)] [30 inches (762 mm)] beneath upslope wood roofing and [6 inches (152 mm)] beyond each side of [chimney] [skylight] and [6 inches (152 mm)] <Insert dimension>above the roof plane.

4. Counterflashing: Fabricate to cover [4 inches (102 mm)] of base flashing measured vertically; and in lengths required so that no step exceeds [8 inches (203 mm)] and the overall length is no more than [10 feet (3 m)]

a. Provide metal [reglets] [receivers] for installation.

5. Open-Valley Flashings: Fabricate from metal sheet not less than [24 inches (610 mm)] wide in lengths not exceeding [10 feet (3 m)] <Insert dimension>, with [1-inch- (25-mm-)] high, inverted-V profile water diverter at the center of the valley and equal flange widths of not less than [11 inches (279 mm)]

6. Drip Edges: Fabricate in lengths not exceeding [10 feet (3 m)] with a minimum 2-inch (51-mm) roof-deck flange and 1-1/2-inch (38-mm) fascia flange with 3/8-inch (10-mm) drip at the lower edge.

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 27

C. Vent-Pipe Flashings: ASTM B749, Type L51121, at least 1/16 inch (1.6 mm) thick.

Provide lead sleeve sized to slip over and turn down into the pipe, soldered to skirt at the slope of the roof and extending at least 6 inches (152 mm) from the pipe onto the roof.

PART 3 - EXECUTION

3.1 EXAMINATION

A. Examine substrates, areas, and conditions, with Installer present, for compliance with requirements for installation tolerances and other conditions affecting the 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 the substrate is sound, dry, smooth, clean, sloped for drainage, and completely anchored and that provisions have been made for flashings and penetrations through wood roofing.

3. Verify that vent stacks and other penetrations through roofing are installed and securely fastened.

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

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

3.2 INSTALLATION OF WOOD ROOF SHINGLES

A. Install wood roof shingles in accordance with the manufacturer's written instructions and recommendations in CSSB's "New Roof Construction Manual" and NRCA's "The NRCA Roofing Manual: Steep-Slope Roofing Systems."

B. Install drainage mat perpendicular to roof slope in parallel courses, butting edges and ends to form a continuous layer, and fasten to roof deck.

C. Install a wood-shingle starter course along the lowest roof edge.

1. Install in [double layer with joints offset a minimum of 1-1/2 inches (38 mm)].

2. Extend [1-1/2 inches (38 mm)] over the fascia.

3. Extend [1-1/2 inches (38 mm)] over the rake edge.

D. Install the first course of wood roof shingles directly over the starter course and in continuous straight-line courses across the roof deck. Install second and succeeding courses of wood roof shingles in continuous straight-line courses across the roof deck.

1. Extend [1 inch (25 mm)] [1-1/2 inches (38 mm)] over the rake edge.

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2. Offset joints between shingles in succeeding courses a minimum of 1-1/2 inches (38 mm). Do not align vertical joints in alternate courses.

3. Space shingles are a minimum of 1/4 inch (6 mm) and a maximum of 3/8 inch (10 mm) apart.

4. Fasten each shingle with two nails spaced 3/4 to 1 inch (19 to 25 mm) from the edge of the shingle and 1-1/2 to 2 inches (38 to 51 mm) above the butt line of the succeeding course. Drive fasteners flush with the top surface of shingles without crushing wood.

5. Maintain weather exposure of 24-inch- (610-mm-)] long shingles.

E. Open Valleys: Cut and fit wood roof shingles at open valleys, trimming upper concealed corners of shingles. [Maintain uniform width of exposed open valley]

F. Ridge Vents: Install continuous ridge vents over wood roof shingles in accordance with the manufacturer's written instructions. Fasten with roofing nails of sufficient length to penetrate the roof sheathing.

G. Ridge Units: Install units over wood roof shingles trimmed at the apex of ridges and hips.

1. Maintain the same exposure dimension of units as roof-shingle exposure.

2. Lap units at ridges to shed water away from the direction of prevailing winds.

3. Alternate overlaps of units and fasten with concealed roofing nails of sufficient length to penetrate sheathing.

4. At unventilated ridges and hips, install concealed strip of [felt] [self-adhering, polymer-modified bitumen sheet] underlayment over apex shingles and below ridge units.

5. Fasten ridge units to cover ridge vents without obstructing airflow.

3.3 INSTALLATION OF UNDERLAYMENT AND SHAKE INTERLAYMENT

MATERIALS

A. Comply with the underlayment manufacturer's written installation instructions and with recommendations in CSSB's "New Roof Construction Manual" and NRCA's "The NRCA Roofing Manual: Steep-Slope Roof Systems" applicable to products and applications indicated unless more stringent requirements are specified in the Section or indicated on Drawings.

B. Felt: Install on roof deck parallel with and starting at eaves and fasten with underlayment nails.

1. Double-Layer Installation:

a. Install a 19-inch- (483-mm-) wide starter course at the eaves and completely cover with a 36-inch- (914-mm-) wide second course.

b. Install succeeding 36-inch- (914-mm-) wide courses lapping previous courses 19 inches (483 mm) in shingle fashion.

c. Lap ends a minimum of 4 inches (102 mm).

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 29

d. Stagger end laps between succeeding courses at least 72 inches (1829 mm).

e. Apply a continuous layer of asphalt roofing cement over the starter course and on the felt-underlayment surface to be concealed by succeeding courses as each felt course is installed. Apply to a point not less than 24 inches (610 mm) inside the exterior wall line of the building.

2. Install felt underlayment [on roof deck not covered] [over areas protected] [over eaves protected] by self-adhering, polymer-modified bitumen sheet.

a. Lap sides of felt over self-adhering sheet not less than 4 inches (102

mm) in the direction that sheds water.

b. Lap ends of felt not less than 6 inches (152 mm) over the self-adhering sheet.

3. Install fasteners in a grid pattern of 12 inches (305 mm) between side laps with 6-inch (152 mm) spacing at the side and end laps.

4. Terminate felt [flush] [extended up not less than 4 inches (102 mm)] against sidewalls, curbs, chimneys, and other roof projections.

C. Self-Adhering, Polymer-Modified Bitumen Sheet: Install, wrinkle-free, on the roof deck.

1. Comply with low-temperature installation restrictions of underlayment manufacturers.

2. Install lapped in a direction that sheds water.

3. Lap sides not less than 4 inches (102 mm). Lap ends not less than 6 inches

(152 mm), staggered 24 inches (610 mm) between succeeding courses.

4. Roll laps with the roller.

5. Prime concrete, masonry, and metal surfaces to receive self-adhering sheets.

6. Eaves: Extend from the edges of eaves [36 inches (914 mm)] beyond the interior face of the exterior wall.

7. Rakes: Extend from the edges of rakes [36 inches (914 mm)] beyond the interior face of the exterior wall.

8. Valleys: Extend from the lowest to the highest point [18 inches (457 mm)] on each side of the centerline.

9. Hips: Extend [18 inches (457 mm)] on each side.

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

11. Sidewalls: Extend [18 inches (457 mm)] beyond sidewalls and return vertically against sidewalls not less than [4 inches (102 mm)]

12. Dormers, Chimneys, Skylights, and Other Roof-Penetrating Elements:

Extend [18 inches (457 mm)] beyond penetrating elements and return vertically against penetrating elements not less than [4 inches (102 mm)]

13. Roof-Slope Transitions: Extend [18 inches (457 mm)] on each roof slope.

14. Cover underlayment within seven days.

NFJD BUILDING ROOF REPLACEMENT ASPHALT SHINGLES 30

D. Metal-Flashed, Open-Valley…