06 11 20 - Framing & Sheathing.pdf

SECTION 06 11 20 – FRAMING AND SHEATHING

Herbert, Rowland & Grubic, Inc. 06 11 20 - 1 000483.0450

SECTION 06 11 20 – FRAMING AND SHEATHING

PART 1 - GENERAL

1.1 SUMMARY

A. Section Includes:

1. Miscellaneous framing and sheathing.

a. Purlins, girts, headers, skirt boards, posts.

B. Related Requirements:

1. Section 06 10 00 – Rough Carpentry: Wood blocking, plating, support members, framing for openings, and framing of openings between trusses.

2. Section 06 17 53 – Shop-Fabricated Wood Trusses.

1.2 REFERENCES

A. APA: American Plywood Association.

B. NFPA: National Forest Products Association.

C. SPIB: Southern Pine Inspection Bureau.

1.3 COORDINATION

C. Coordinate placement of blocking, framing for openings, trusses with Work of this Section.

1.4 SUBMITTALS

A. Section 01 33 00 – Submittal Procedures: Requirements for submittals.

B. Manufacturer's/Fabricator's Certificate: Certify that products meet or exceed specified requirements.

1.5 QUALITY ASSURANCE

A. Perform Work as follows:

1. Lumber Grading: Certified by DOC PS 20.

2. Plywood Grading Agency: Certified by APA/EWA.

3. Lumber: Comply with DOC PS 20.

4. Wood Structural Panels: DOC PS 1 or DOC PS 2.

1.6 DELIVERY, STORAGE, AND HANDLING

A. Deliver, store, protect, and handle products to site under provisions of Section 01 40 00 – Quality Requirements.

B. Handle to avoid damage to materials including corners, edges, and faces. Store level using

Herbert, Rowland & Grubic, Inc. 06 11 20 - 2 000483.0450 blocking on uneven ground and to keep materials off ground and damp surfaces. Store materials under cover to keep dry.

1.7 EXISTING CONDITIONS

A. Field Measurements:

1. Verify field measurements.

PART 2 - PRODUCTS

2.1 SHEATHING MATERIALS

A. Plywood Roof Sheathing: APA Rated Sheathing, Span Rating 24"; Exposure 1, unsanded.

B. Wall Sheathing: APA Rated Sheathing Span Rating 16”; Exposure 1.

2.2 SHEATHING AND UNDERLAYMENT LOCATIONS

A. Roof Sheathing: 5/8" thick (or as noted on drawings), 48 x 96 inch sized sheets, square edges.

B. Walls: ½” thick, 48 x 96 inch, square edges.

2.3 FRAMING MATERIALS

A. Lumber for framing, blocking, nailers, and similar members:

1. NIST PS 20.

2. Treated material species: As indicated in the appropriate AWPA Standard and as required to achieve UL Rating Listed herein.

3. Grade:

a. For nominal sizes up to and including 2 X 4: Hem-Fir or SPF #2 and better.

b. For nominal sizes up to 2” thick and wider than 4”: Hem-Fir or SPF #2 and better.

c. For treated lumber: Southern Yellow Pine #2 and better.

2.4 ACCESSORIES

A. Fasteners and Anchors:

B. Fasteners: Hot-dipped galvanized steel for high humidity and treated wood locations, unfinished steel elsewhere.

PART 3 - EXECUTION

3.1 FRAMING

Herbert, Rowland & Grubic, Inc. 06 11 20 - 3 000483.0450

A. Set structural members level and plumb, in correct position.

B. Make provisions for erection loads, and for sufficient temporary bracing to maintain structure safe, plumb, and in true alignment until completion of erection and installation of permanent bracing.

C. Place horizontal members flat, crown side up.

D. Place sill gasket directly on cementitious foundation. Puncture gasket clean and fit tight to protruding foundation anchor bolts.

3.2 SHEATHING

A. Secure roof sheathing perpendicular to framing members with ends staggered and sheet ends over firm bearing. Use sheathing clips between sheets between roof framing members. Fasten to APA standards unless nailing schedule is provided on drawings.

B. Fasten to cold formed steel rafter/joists with #10 screws 6” on center.

C. Secure wall sheathing with long dimension parallel to wall studs, with ends and edges over firm bearing. Fasten to APA standards unless nailing schedule is provided on drawings.

3.3 TOLERANCES

A. Framing Members: ¼” from true position, maximum.

END OF SECTION 06 11 20