1 5 Roof Decking

1 5 composite steel deck.

1 5 roof decking.

In the first half of the 20th century roofs in missouri were built with wood shingles over planks spaced about 1 apart. Also known as narrow rib this structural metal roof deck provides a wide support surface for various types of rigid insulation and roofing materials. 1 5 composite metal deck requires less concrete but spans shorter distances than deeper composite metal decking. B deck is by far the most commonly used roof deck for new construction projects.

It is recommended to pour a minimum of 2 of concrete over the ribs of the deck for a total slab thickness of 3 5. 1 5 type a roof deck type a roof deck is 1 5 deep. Same day pick up or delivery. Compared to type a roof decks and type f roof decks type b metal roof deck has the highest strength to weight ratio.

22 gauge is the lightest weighing 1 9 pounds per square foot. 1 5b 1 5bi 1 5plb roof deck imperial standard features astm a653 a653m ss gr 50 minimum steel with fy 50 ksi. Wood shingle are expensive so when these roofs need to be torn off and replaced it is cheaper to resheath the entire roof and go over it. 16 gauge is the heaviest weighing 3 5 pounds per square foot.

The most common rafter spacing is 24 inches and 5 8 inch plywood is recommended for that. 22 20 18 16. Verco hsb 36 stands for high shear b deck 36 wide. 6 0 to 42 0 ulc listing tables conform to can csa s136 12 and meet the guidelines of cssbi 10m 2013 unless noted otherwise.

Plank sheathing usually 1 6 or 1 8 was used as a roof deck before plywood. B deck is strong light weight economical and easy to install and is the most common structural roof deck. B deck hsb 36 high shear b deck 1 5 deep good in stock. Type b wide rib deck provides excellent structural load carrying capacity per pound of steel utilized and its nestable design eliminates the need for die set ends.

For rafters spaced 20 or more inches apart 1 2 or 5 8 inch plywood is recommended.