SECTION 07313

WOOD SHINGLES AND SHAKES

PART 1 GENERAL

SECTION INCLUDES

Cedar [shingle] [shake] roofing.

Moisture shedding underlayment, eave, valley and ridge protection.

Associated metal flashings.

RELATED SECTIONS

Section [______-____________]: Flashing reglets placed at vertical surfaces of [concrete] [masonry] [________].

Section [06112 - Framing and Sheathing] [06125 - Wood Decking]: Roof sheathing [and framed openings].

Section 07190 - Vapor and Air Barriers.

Section [_____-____________]: Nailable rigid insulation.

Section 07620 - Sheet Metal Flashing and Trim.

Section 07631 - Gutters and Downspouts.

Section 07810 - Plastic Skylights.

Section [______-____________]:	Attic space vents.

Section [______-____________]:	Chimney flue.

Section [______-____________]: Mechanical work projecting through roof.

REFERENCES

ANSI/ASTM B209 - Aluminum-Alloy Sheet and Plate.

ANSI/ASTM D224 - Smooth-Surfaced Asphalt Roll Roofing (Organic Felt).

ANSI/ASTM D226 - Asphalt-Saturated Organic Felt Used in Roofing and Waterproofing.

ANSI/ASTM D228 - Method Of Testing Asphalt Roll Roofing, Cap Sheets and Shingles.

ANSI/ASTM D249 - Asphalt Roll Roofing Surfaced with Mineral Granules.

ANSI/ASTM D2178 - Asphalt Impregnated Glass (Felt) Mat Used in Roofing and Waterproofing.

ANSI/ASTM D2822 - Asphalt Roof Cement.

ANSI/ASTM D3018 - Class A Asphalt Shingles Surfaced with Mineral Granules.

ASTM A361 - Sheet Steel, Zinc-Coated (Galvanized) by the Hot-Dip Process for Roofing and Siding.

ASTM B370 - Copper Sheet and Strip for Building Construction.

ASTM E84 - Test Method for Surface Burning Characteristics of Building Materials.

FS L-P-375 - Plastic Film, Flexible, Vinyl Chloride.

NRCA - Steep Roofing Manual.

RCSHSB - Grading Rules for Red Cedar Shingles and Handsplit Shakes.

RIS - Standard Specifications for Grades of California Redwood Lumber.

UL 580 - Tests for Wind Uplift Resistance of Roof Assemblies.

UL 790 - Tests for Fire Resistance of Roof Covering Materials.

SUBMITTALS

Submit under provisions of Section [01300] [________].

Shop Drawings: Indicate [specially configured] [________________] metal flashings, jointing methods and locations, fastening methods and locations, and installation details.

Product Data: Provide data indicating material characteristics, performance criteria, limitations, [and] [________________].

Manufacturer's Installation Instructions: Indicate preparation required and installation procedures.

Manufacturer's Certificate: Certify that [products] [________] meet or exceed [specified requirements] [___________________].

QUALITY ASSURANCE

Perform Work in accordance with [NRCA Steep Roofing Manual] [RCSHSB instructions] [________________].

Maintain [one] [____] copy of document on site.

REGULATORY REQUIREMENTS

Conform to [applicable] [___________] code for [ASTM E84 flame spread] [UL 580 wind uplift] [UL 790 fire resistance] on [shingle] [shake] types required.

Provide certificate of compliance from [authority having jurisdiction] [________________] indicating approval of specified products.

MOCKUP

Provide mockup of [_____] sq ft ([____] sq m), including eave protection, underlayment, [shingle] [shake] installation and associated flashings, under provisions of Section [01400] [________].

Mockup may [not] remain as part of the Work.

ENVIRONMENTAL REQUIREMENTS

Do not install eave edge (ice dam) protection when ambient temperatures are below [50] [____] degrees F ([10] [____] degrees C).

EXTRA MATERIALS

Furnish under provisions of Section [01700] [________].

Provide [____] sq ft ([____] sq m) of extra [shingles] [shakes] [of each shape specified].

PART 2 PRODUCTS

MANUFACTURERS - [SHINGLES] [SHAKES]

[__________________________________] Product [_________].

[__________________________________] Product [_________].

[__________________________________] Product [_________].

Substitutions: Under provisions of Section [01600] [________].

[SHINGLES] [SHAKES]

Shingles: RCSHSB sized and graded, [No. 1 (Blue Label)] No. 2 (Red Label)] [No. 3 (Black Label)] [including No. 4 under coursing]; [16] [18] [24] inches ([400] [450] [600] mm) long, [________] style, [________] configuration [, aluminum foil backed].

****** [OR] ******

Shingles: RIS sized and graded; [No. 1] [No. 2 Vertical Grain] [No. 2 Mixed Grain]; [16] [18] [24] inches ([400] [450] [600] mm) long; [________] style, [________] configuration [, aluminum foil backed].

Shakes: RSCHSB sized and graded; No. 1 [handsplit and resawn] [taper split] [straight split], [18] [24] inches ([450] [600] mm) long x [3/8] [1/2 to 5/8] [1/2 to 3/4] [1/2 to 1-1/4] inch ([9] [13 to 16] [13 to 19] [13 to 31] mm) thick at butt ends.

****** [OR] ******

Shakes: RIS sized and graded; No. 1 [handsplit and resawn] [taper sawn] [machined grooved] [straight split] [tapersplit]; [18] [24] inches ([450] [600] mm) long.

[Hips and Ridge Caps: Prefabricated [lapped single ply] [flush multiple ply] units to match [shingles] [shakes].]

[Treatment: Shop preservative treat with [water] [________] based [clear] [________] preservative to improve [[fungus] [moisture] resistance] [fire retardancy]; [________] manufactured by [________________].]

SHEET MATERIALS

Roll Roofing: [ANSI/ASTM D249;] asphalt saturated roll roofing; [____] lb/square ([____] kg/sq m) surfaced on weather side with mineral granules of [________] color; [________] manufactured by [________________].

****** [OR] ******

Roll Roofing: [ANSI/ASTm D228, Type [S - Smooth Surface] [M - Mineral Surfaced] [MC - Mineral Surfaced Cap Sheet];] asphalt saturated roll roofing; [____] lb/square ([____] kg/sq m); surfaced on weather side with mineral granules of [________] color; [________] manufactured by [________________].

****** [OR] ******

Roll Roofing: [ANSI/ASTm D224, Type [I - 40 lb/square (1 943 gm/sq m)] [II - 55 lb/square (2 666 gm/sq m)];] asphalt saturated roll roofing; surfaced on weather side with mineral granules of [________] color; [________] manufactured by [________________].

Eave (Ice Dam) Protection: Sheet barrier of rubberized asphalt bonded to sheet polyethylene, [40] [____] mil ([one] [____] mm) total thickness, with strippable treated release paper; [________] manufactured by [________________].

****** [OR] ******

Eave (Ice Dam) Protection: ANSI/ASTM D226, No. [15] [20] [30] ([73][, [unperforated] [perforated] asphalt saturated

felts.

****** [OR] ******

Eave (Ice Dam) Protection: ANSI/ASTM D2178, Type IV, glass fiber felts.

Underlayment: Cellulose fiber building paper, water repellent breather type.

****** [OR] ******

Underlayment: [ANSI/ASTM D226,] No. 15 (73 kg/sq m) unperforated asphalt saturated felts as recommended for use in waterproofing and in construction of built-up roofs.

****** [OR] ******

Underlayment: [FS L-P-375, Class [1] [2];] [4] [____] mil ([0.025] [____] mm) thick translucent polyethylene film; [low] [standard] permeance type.

ACCESSORIES

Nails: Standard round wire shingle type, [hot dipped zinc coated steel] [________________] of sufficient length to penetrate through roof sheathing.

****** [OR] ******

Nails: Standard round wire shingle type [hot dipped zinc coated steel] [________________] type, [minimum 13/64 inch (5 mm) head diameter and 0.080 inch (2 mm) shank diameter, [1-1/4 inch (31 mm) long] of sufficient length to penetrate [through roof sheathing] [[3/4] [____] inch ([19] [____] mm) into roof sheathing]].

****** [OR] ******

Staples:	Standard wire shingle [hot dipped zinc coated steel] [________________] type, of sufficient length to penetrate [through roof sheathing] [[3/4] [____] inch ([19] [____] mm) into roof sheathing]].

Plastic Cement: [ANSI/ASTM D2822;] asphalt type with mineral fiber components, free of toxic solvents, capable of setting within 24 hours at temperatures of 75 degrees F (24 degrees C) and 50 percent RH; [________] manufactured by [________________].

Lap Cement: Fibrated cutback asphalt type, recommended for use in application of underlayment, free of toxic solvents; [________] manufactured by [________________].

[Site Preservative Treatment: [Water] [________] based, [clear] [________] type, to resist [fungus] [moisture intrusion]; [________] manufactured by [________________].]

FLASHING MATERIALS

Sheet Flashings:	[ASTM A361;] [24] [26] [____] gage ([0.60] [0.50] [____] mm) thick steel with minimum [1.25] [____] oz/sq ft ([380] [____] oz/sq m) galvanized coating, shop precoated with [silicone] [________] coating of [________] color [to match [________]].

****** [OR] ******

Sheet Flashings:	ANSI/ASTM B209; [0.03] [____] inch ([0.76] [____] mm) thick [stucco embossed] aluminum, shop precoated with [silicone] [________] coating of [________] color [to match [________]].

****** [OR] ******

Sheet Flashings:	ASTM B370; cold rolled copper, [[16] [20] [____] oz/sq ft] [[0.02] [0.03] [____] inches ([0.56] [0.68 [____] mm) thick]; natural finish.

Bituminous Paint: Acid and alkali resistant type; black color.

Nails: Standard round wire roofing type, [hot dipped zinc coated steel] [________]; of sufficient length to penetrate through roof sheathing.

****** [OR] ******

Nails: Standard round wire roofing type, [hot dipped zinc coated steel] [________]; minimum 19/64 inch (8 mm) head diameter and 0.104 inch (3 mm) shank diameter; minimum 7/8 inch (22 mm) long.

FLASHING FABRICATION

Form flashings [to profiles indicated on Drawings, and] to protect materials from physical damage and shed water.

Form sections square and accurate to profile, in maximum possible lengths, free from distortion or defects detrimental to appearance or performance.

Hem exposed edges of flashings minimum [1/4] [____] inch ([6] [____] mm) on underside.

Apply bituminous paint on concealed surfaces of flashings.

PART 3 EXECUTION

EXAMINATION

Verify existing site conditions under provisions of

Section [01039] [________].

Verify that plumbing stacks and roof penetrations are in place and flashed to deck surface.

Verify roof openings are correctly framed prior to installing work of this Section.

Verify deck surfaces are dry, free of ridges, warps, or voids.

PREPARATION

[Fill knot holes and surface cracks with latex filler at areas of bonded eave protection.]

Broom clean deck surfaces.

INSTALLATION - EAVE (ICE DAM) PROTECTION

Place [eave edge] [and] [gable edge] metal flashings tight with facia boards. Weather lap joints [2] [____] inches ([50] [____] mm) and seal with plastic cement. Secure flange with nails spaced [____] inches ([____] mm) oc.

Apply rubberized asphalt/polyethylene sheet eave protection in accordance with manufacturer's instructions.

****** [OR] ******

Apply 4 inch (100 mm) wide band of plastic cement over deck flange of eave edge flashings, and embed an [18] [____] inch ([450] [____] mm) wide strip of underlayment. Place underlayment starter strip with eave edge flush with face of flashings. Secure in place. Lap ends minimum [6] [____] inches ([150] [____] mm).

Apply lap cement at rate of approximately [1-1/4] [____] gal/100 sq ft ([0.5] [____] L/sq m) over underlayment starter strip.

Starting from lower edge of starter strip, lay additional 36 inch (900 mm) wide strips of underlayment in lap cement, to produce a [two] [____] ply membrane. Weather lap plies minimum [19] [____] inches ([475] [____] mm) and nail in place. Lap ends minimum [6] [____] inches ([150] [____] mm). Stagger end joints of each consecutive ply.

Extend eave protection membrane minimum [4] [2] [____] feet ([1 200] [600] [____] mm) upslope beyond interior face of exterior wall.

INSTALLATION - PROTECTIVE UNDERLAYMENT

Place one ply of underlayment over area not protected by eave protection, with ends and edges weather lapped minimum [4] [6] [____] inches ([100] [150] [____] mm). Stagger end laps of each consecutive layer. Nail in place.

Install protective underlayment perpendicular to slope of roof and weather lap minimum [4] [____] inches ([100] [____] mm) [over eave protection].

Weather lap and seal watertight with plastic cement, items projecting through or mounted on roof.

INSTALLATION - VALLEY PROTECTION

Place one ply of smooth surfaced roll roofing, minimum [18] [____] inches ([450] [____] mm) wide, centered over valleys. Weather lap joints minimum [2] [____] inches ([50] [____] mm). Nail in place minimum [18] [____] inches ([450] [____] mm) oc, [one] [____] inch ([25] [____] mm) from edges.

Place one layer of sheet metal flashing, minimum [24] [____] inches ([600] [____] mm) wide, centered over open valleys and crimped to guide water. Weather lap joints minimum [2] [____] inches ([50] [____] mm). Nail in place minimum [18] [____] inches ([450] [____] mm) oc, [one] [____] inch ([25] [____] mm) from edges.

****** [OR] ******

Apply a [4] [____] inch ([100] mm) wide band of lap cement along each edge of first [ply] [layer] and embed ply of roll roofing minimum [36] [____] inches ([900] [____] mm) wide, centered. [Place with mineral surface side up.] Press into cement to encourage bond and nail in place minimum [18] [____] inches ([450] [____] mm) oc, [one] [____] inch ([25] [____] mm) from edges.

INSTALLATION - METAL FLASHING

[Install flashings in accordance with RCSHSB requirements.]

Weather lap joints minimum [2] [____] inches ([50] [____] mm) and seal weather tight with plastic cement.

Secure in place with nails at [____] inches ([____] mm) oc. Conceal fastenings.

Flash and seal work projecting through or mounted on roofing with plastic cement, weather tight.

INSTALLATION - SHINGLES

Install shingles in accordance with manufacturer's instructions.

****** [OR] ******

Place shingles in accordance with RCSHSB requirements to produce [straight] [thatched] [serrated] [weave] [ocean weave] [________] coursing pattern with [____] inch ([____] mm) weather exposure to produce [double] [triple] thickness over roof area.

Provide [double] [triple] course at eaves.

Project first course [1-1/2] [____] inches ([38] [____] mm) beyond face of facia boards.

Coordinate installation of roof mounted components or work projecting through roof with weather tight placement of counter flashings.

Complete installation to provide weather tight service.

****** [OR] ******

INSTALLATION - SHAKES

Install shakes in accordance with manufacturer's instructions.

****** [OR] ******

Lay shakes and integral interleaved protective underlayment in accordance with RCSHSB requirements to produce [straight] [________] coursing pattern with [____] inch ([____] mm) weather exposure to produce a [double] [triple] thickness over roof area.

Provide [double] [________] course of shingles at eaves.

Project first course of shingles [1-1/2] [____] inches ([38] [____] mm) beyond face of facia boards.

Coordinate installation of roof mounted components or work projecting through roof with weather tight placement of counter flashings.

Complete installation to provide weather tight service.

SITE TREATMENT

Treatment: Treat wood with preservative by [brush] [________] application, [one coat] [[____] coats] in accordance with manufacturer's instructions.

PROTECTION OF FINISHED WORK

Protect finished Work under provisions of Section [01500] [________].

Do not permit traffic over finished roof surface.

END OF SECTION