Frt Plywood Roof Sheathing

It adds proven performance and durability to new homes room additions and renovations.

Frt plywood roof sheathing.

Go to work with a building solution that meets building code requirements for fire resistent construction while increasing structural ratings. This document summarizes the history of the development and use of fire resistant plywood roof sheathing in the u s. Frt plywood is a sheathing treated with a chemical to prevent flame spreading in the event of the fire. In these cases the wood had darkened was very brash and brittle and crum bled easily.

Pyro guard was the first frtw fire retardant treated wood to be issued a code compliance report based on high temperature testing for roof sheathing and framing uses. In contrast frt plywood has a flame spread rating but no rating for burn through resistance. Background in the worst cases roofs made with frt plywood have required replacement. In addition it has a higher load span ratings than frtw plywood of the same thickness and can reduce.

Frt fire retardant treated plywood. Ul evaluation report er7002 01 has been issued for pyro guard by underwriters laboratory confirming compliance with the international building code. Structural design values for lp flameblock sheathing are not reduced by the fire retardant treatment so the panel carries load span and shear design values equivalent to an untreated wood structural panel in the same panel thickness category. And explains the issue of structural damage to roof sheathing where fire retardant plywood roof sheathing or frt plywood was used on buildings.

Properties of frt plywood inspection tips. Therefore the quantity shown may not be available when you get to the store. Prices promotions styles and availability may vary by store and online. It was used on townhouses and condos roofs 4 feet on each side sometimes more of the walls separating each individual unit in the late 1970 s to early 1980 s.

Fx lumber guard xt frt osb sheathing can be used in type ii iii and v construction as a listed component in fire rated interior wall exterior wall and roof deck assemblies and as an alternative to pressure impregnated frtw plywood. Lp flameblock is an icc es evaluated component of 1 and 2 hour fire rated wall assemblies and roof deck applications. Plywood sheathing is ideal for residential and light plywood sheathing is ideal for residential and light construction and every piece meets the highest grading standards for strength and appearance. Atures lower than those at the roof covering sheathing interface are responsible for the strength degradation of frt plywood used as roof sheathing.

Plywood sheathing delivers outstanding rigidity strength and versatility and is an excellent choice for. 1 2 x 4 x 8 fire retardant plywood sheathing.