Apa Fire Rated Plywood Stamp

Apa is a third party quality control nonprofit trade association that represents us and canadian manufacturers of structural engineered wood products.

Apa fire rated plywood stamp.

The apa panel trademark explained. Moisture resistant resin technology resists the damaging effects of weather during construction and a structural 1 rating provides excellent shear resistance and added strength to your roofs and walls. A fire retardant treated backboard will be designated with a fire rated stamp branded or stamped along the edge or center of the plywood ul fr s plywood 1780 r 7003 marine grade plywood does not qualify even though it is saline treated as it will have a different ul number. Traditional oriented strand board osb and plywood simply can t compare.

An apa stamp confirming compliance appears on each panel. Some grade stamps will have information relevant to the country which has not been included here. Panel grade the term grade may refer to panel grade or veneer grade panel grades are generally identified in terms of the veneer grade used on the face and back of the panel e g a b b c or by a name suggesting the panel s intended end use e g apa rated sheathing underlayment. Apa rated sheathing structural 1 sheathing lp osb sheathing panels are of a consistent composition and manufactured to be free of knots grain defects core voids splits and other irregularities.

Us voluntary product standard ps 1 09 structural plywood. Apa rated sturd i floor panels are designed specifically for single floor combined subfloor under layment applications under carpet and pad and are manufactured with span ratings of 16 20 24 32 and 48 inches. What s inside advantech sheathing panels makes all the difference. Panel grade the panel grade can be either rated sheathing or sturd i floor.

These like those for apa rated sheathing are based on application of the panel with the long dimension or strength axis across. Look for this information on all fire retardant treated wood stamps or labels western wood preservers institute 7017 n e. Ps 1 09 is a product standard covering the requirements for american plywood intended for structural loadbearing use. Highway 99 vancouver wa 98665 360 693 9958 web.

Plywood 3 8 and thicker has been generically recognized as having a class c iii flame spread rating without need for test or label according to hud fha manual of acceptable practices section 405 8 to the minimum property standards interpretive bulletin c 1 76 to the.