When called for on the Drawings, all solid lumber and plywood pressure-treated to the standards of the American Wood Preserver's Association for water-borne CCA, at a rate of 0.25 lbs/cf retained after treatment for all applications above ground, and OAO lbs/cfretained after treatment for all applications below ground or in contact with water. Water-borne CCA to conform to Federal Specification TT-W-550. All bearing plates, nailers and blocking partially or totally imbedded in concrete or masonry shall be pressure-treated.
When required, use Fire Retardant Treatment process conforming to C-20 and C 27 of the American Wood Preserver's Association. Materials so treated must bear the quality mark of the American Wood Preserver's Bureau. Flame spread maximum of 25 as measured in accordance with ASTM E-84.
PROTECTION AND STORAGE
Protect all lumber and sheathing from weather and store 1
above the ground.
Set level to within 1/8" in 12 feet, in mortar bed if necessary to bring stem wall leveL Do not shim.
POSTS AND BEAMS
Erect straight, plumb and level and in-line.
Provide in continuous lengths without splices. Provide triple studs at comers and
wall intersections with nailing surface for edge of finishes. Bore holes not greater than 40% of width of studs, minimum % inch from edge of stud. Notch to a depth less than 25% of stud width for bearing walls and 40% for non-bearing walls.
Provide double jamb studs (one support king stud, and one trimmer stud) for openings
less than 4 feet wide; quadruple jamb studs for openings over 4 feet; unless noted otherwise on Drawings.
3 Section 06lO0