Fire Rated Plywood Roof Sheathing

Lp wall assembly requires 2x4 wood studs 1 layer of 2 sided.

Fire rated plywood roof sheathing.

Lp flameblock fire rated osb sheathing is a component of the following code compliant fire rated assemblies. When making a selection below to narrow your results down each selection made will reload the page to display the desired results. When making a. 2 hour exterior wall assembly ul design no.

Roof systems flooring and other interior applications. 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. Applications e valuated by icc es for fire rated sheathing that combines flame spread and burn through resistance to meet fire codes. 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.

Rated sheathing 27 sturd i floor 1 nominal dimensions. Typically permitted for interior above ground applications such as. This plywood has been grade stamped and third party inspected to ensure quality. 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.

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. Lp flameblock fire rated osb sheathing is icc certified to meet code and provides additional value strength savings and greater design flexibility. 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.

It helps you build fire rated wall assemblies and roof deck faster at a lower cost than most common alternatives. In fire rated wall assemblies this attribute can provide more flexibility in designing wall openings and more options in framing and bracing to meet structural requirements. Some frt plywood products are only certified for type v construction. Firepro brand fire retardant treated plywood is pressure impregnated with firepro interior type a high temperature ht fire retardant chemicals.

In virtually all cases engineered wood sheathing is certified for type ii iii and v construction. Low smoke development values.