WebHigh-grade wood for products requiring premium appearance. Fire-retardant and preservative-treated forest products; untreated lumber is stamped KD-HT; all products … WebUnder AWPA Standards, preservative treatment and fire retardant treatment are two different technologies. Preservatives are expected to protect the wood from decay fungi …
FRT for OSB and Engineered Wood Products - Global …
Webtype, a single resin loading level, and four fire-retardant-treatment levels. The fire retardant (FR) evaluated was a pH-buffered combination of boric acid and organic phosphate. Siberian larch strands were separated into five batches. One batch of strands served as the untreated control group and was not treated with water or FR; the four ... WebApr 29, 2024 · The panels are 4 feet wide, minimum 7/16-inch thick oriented strand board (OSB) or 15/32-inch thick structural sheathing (plywood) complying with DOC PS1 or PS2, or APA Standard PRP-108, and manufactured with exterior glue. how do you pronounce tarshish
For Builders AWPA - American Wood Protection Association
WebOriented strand board (OSB). Plywood. SECTION 2303 MINIMUM STANDARDS AND QUALITY . ES 2303.1 General. ... Fire-retardant-treated wood shall be dried to a moisture content of 19 percent or less for lumber and 15 percent or less for wood structural panels before use. For wood kiln-dried after treatment (KDAT), the kiln temperatures shall not ... WebHoover’s treated southern yellow pine scores a 15 in flame-spread testing (25 or below gets a Class A rating). The company’s treated deck heart-grade redwood and cedar have even lower flame-spread values of 10 each. $2.50 per lineal foot for redwood 2×6. Hoover Treated Wood Products Inc., Thomson, GA; 800-832-9663. Structural Insulated Panels Webfire retardantwoodosb, Fire Retardant Wood, Fire Retardant Wood Products. WOOD PRODUCTS 2653 Warfield St. Fort Worth, TX 76106. FLAMEPROOF COMPANIES. … phone number for chemtrec