Fire Rated Plywood Roof Sheathing

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Fire rated plywood roof sheathing.

Rated sheathing 27 sturd i floor 1 nominal dimensions. This plywood has been grade stamped and third party inspected to ensure quality. Offers protection from termites and decay fungi. Where the room side fire resistance rated membrane of the corridor is carried through to the underside of the floor or roof sheathing deck or slab of a fire.

Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies. 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. 2 hour exterior wall assembly ul design no. It helps you build fire rated wall assemblies and roof deck faster at a lower cost than most common alternatives.

Two layers of 5 8 inch fire rated gypsum on the interior with steel framing or frt wood framing frt plywood exterior sheathing and 5 8 inch exterior fire rated gypsum such as gp densglass see u371 lp flameblock sheathing applications. Low smoke development values. In virtually all cases engineered wood sheathing is certified for type ii iii and v construction. Lp flameblock fire rated osb sheathing is icc certified to meet code and provides additional value strength savings and greater design flexibility.

Firepro brand fire retardant treated plywood is pressure impregnated with firepro interior type a high temperature ht fire retardant chemicals. Typically permitted for interior above ground applications such as. Roof systems flooring and other interior applications. Lp wall assembly requires 2x4 wood studs 1 layer of 2 sided.

V337 2 hour interior wall assembly ul design no. Fire retardant plywood sheathing panel 4 plywood sheathing panel 25 pressure treated plywood sheathing panel 18 nominal thickness. When making a. Flamepro frtw wood has been tested for fire performance by several independent laboratories and meets model code requirements for a class a class 1 fire retardant.

Roof sheathing slab or deck above or to the fire resistance rated floor ceiling or roof ceiling assembly above and shall be securely attached thereto. Applications e valuated by icc es for fire rated sheathing that combines flame spread and burn through resistance to meet fire codes.