Division 6-Wood and Plastics.pdf

102-029 06 10 00-1

DIVISION 6 - WOOD AND PLASTICS 1

SECTION 06 10 00 3

ROUGH CARPENTRY 4

A. GENERAL 6

RELATED WORK SPECIFIED ELSEWHERE 8

Wood Treatment Section 06 30 00 10

QUALITY ASSURANCE 12

Comply with PS 20 and with applicable rules of the respective grading and inspecting agencies for species and 14 products indicated. 15 Comply with PS 1-74 (ANSI 199.1) or, for products not manufactured under PS 1-74 provisions, with applicable 17 APA Performance Standard for type of panel indicated. Identify each plywood panel with the appropriate APA 18 Trademark. 19 All stress grades and stress criteria shall be based on the National Design Specifications for Wood Construction, 21 latest edition. 22

STORAGE 24

Store lumber and rough carpentry materials on bunks or skids at least 6 inches above the ground, and protect 26 materials from weather with waterproof covers. 27

JOB CONDITIONS 29

Fit carpentry work to other work; scribe and cope as required for accurate fit. Correlate location of furring, nailers, 31 blocking, grounds, and similar supports to allow proper attachment to other work. 32

B. PRODUCTS 34

MATERIALS 36

Lumber shall be S4S, kiln dried, with 19 percent maximum moisture content at time of dressing. Lumber shall be 38 grade stamped in accordance with the latest edition of the standard grading rules of NELMA, SPIB, WCLIB, 39 WWPA or NLGA (or equivalent Canadian governing authority). 40 All roof curbs, parapet caps, roof nailers, roof cants, and all other miscellaneous blocking used in the roofing 42 installation shall be pressure treated No. 2 or better Douglas Fir or Southern Pine. 43

MISCELLANEOUS PLYWOOD 45

Miscellaneous Concealed Plywood: C-C plugged exterior. 47

MISCELLANEOUS MATERIALS 49

Fasteners and anchorages shall be of the size, type, material and finish as indicated below or on the Drawings and 51 as recommended by applicable standards complying with applicable Federal Specifications for nails, (staples), 52 screws, bolts, nuts, washers and anchoring devices. Metal Anchors shall be of the size and type recommended by 53 the manufacturer for each use. Where rough carpentry work is exposed to the weather, in ground contact, or in 54 areas of high humidity, provide fasteners and anchorages with a hot-dip zinc coating (ASTM A 153). 55 Miscellaneous Fastenings. Spikes, screws, lag bolts, and other miscellaneous fastenings and rough hardware 57 shall be as shown on the Drawings, or as required to assemble and secure rough carpentry items. All fasteners 58 associated with exterior work shall be galvanized finished, except that fasteners for redwood shall be stainless 59

102-029 06 10 00-2 steel or aluminum. 1 Adhesives shall conform with Specification AFG-01 of the American Plywood Association. 3

C. EXECUTION 5

MISCELLANEOUS WOOD BLOCKING 7

Erect miscellaneous blocking as shown on the Drawings or as required to secure materials to rough construction. 9 Anchoring of blocking to steel or concrete shall be by bolted connections. Bolts shall be 1/2" diameter located 12" 11 from each end and at 4' centers maximum, unless otherwise shown on the Drawings or specified herein. 12

INSTALLATION OF TREATED WOOD 14

Field cuts shall be coated with a concentrated solution of preservative treatment. Treated lumber shall be 16 anchored in place as specified earlier in this section for blocking unless shown otherwise on the Drawings. 17

102-029 06 30 00-1

SECTION 06 30 00 1

WOOD TREATMENT 2

A. GENERAL 4

RELATED WORK SPECIFIED ELSEWHERE 6

Installation of Treated Rough Carpentry Materials Section 06 10 00 8

ACCEPTABLE MANUFACTURERS 10

Acceptable manufacturers are those listed by the American Wood Preservers Bureau in their current directory as 12 suppliers of pressure-treated wood products. 13

QUALITY MARK 15

Each piece of lumber which is pressure treated shall bear the American Wood Preservers Bureau Quality Mark to 17 indicate conformance with the AWPB Standard specified later in this section. The information required by the 18 American Wood Preservers Bureau Standard must appear on the label. 19

DELIVERY, STORAGE AND HANDLING 21

Store pressure-treated lumber indoors, if possible, or on a raised platform under waterproof coverings. 23

CONTRACTOR'S OPTION 25

The Contractor may substitute untreated Grade No. 2 or better Western Red Cedar in lieu of pressure-treated 27 framing and blocking material at all locations where decay-resistant material is specified hereinafter. In the case of 28 all blocking nominally 8" wide or wider, only Western Red Cedar shall be used; pressure-treated wood will not be 29 acceptable. 30

B. PRODUCTS 32

PRESERVATIVE TREATMENT 34

All preservative treatment shall comply with applicable requirements of AWPA Standards C2 (Lumber) and C9 36 (Plywood) and of AWPB Standards listed below. Mark each treated item with the AWPB Quality Mark 37 Requirement. 38 Preservative-treat items listed below with water-borne preservatives complying with AWPB LP-2 to a minimum 40 retention of 0.25 pcf. After treatment, kiln-dry to a maximum moisture content of 19%. 41

LUMBER REQUIRING PRESERVATIVE TREATMENT 43

Rough carpentry materials for decay resistant pressure treatment shall consist of the following materials: 45

1. All miscellaneous blocking, cants and similar items at roof edge nailers, parapet caps, roof curbs and 46 similar items (except cedar used under the Contractor's options described above.) 47

2. All blocking in contact with masonry or concrete. 48

ON-SITE TREATMENT 50

Cuts resulting from site fabrication shall be liberally coated with a concentrated solution of the preservative. 52

C. EXECUTION 54

INSTALLATION 56

Installation of treated wood shall be as specified in Section 06 10 00, Rough Carpentry. 58