Tongue And Groove Roof Decking Spans

Plan is to use 2x6 t g sheathing since it would require no plywood or osb overlay and 1 roofing nails wouldn t penetrate beneath.

Tongue and groove roof decking spans.

Tongue and groove decking provides the customer with an outstanding solution for roof and subfloor structure where exposed to the lower level. 2x6 douglas fir tongue and groove decking as one of the hardest and most dense of the softwood species douglas fir makes a practical as well as a beautiful addition to your home. Just wondering if anyone has used this decking to act as the roof diaphragm. I am looking to space rafters at 72 however i cannot find any information on diaphragm strength of the t g decking.

This tongue and groove decking combines appearance grade with unsurpassed quality of finish making them ideal for exposed ceiling applications. Standard structural decking patterns are 2 nominal tongued and grooved t g and 3 and 4 double t g products available with vee or eased edges to meet discriminating architectural requirements. It is nominal 2 x 6 3 x 6 or 4 x 6 in 1 or 2 grade and kiln dried. 4 tongue and groove roof decking.

All end joints occur in line on every other support figure 6. American institute of timber construction standards for tongue and groove heavy timber decking. See figures 1 and 2 lengths decking pieces may be of. 1 grade lumber decking is standard and is used where construction requires the finest appearance and high strength.

This document contains all that s needed to design and construct tongue and groove wood roof decking including span and load tables. Roof decking is southern pine as manufactured by s i. Frequently used for loft flooring and roof decking the uniquely straight grain and reddish orange color of douglas fir provides eye catching appeal wherever it is installed. Storey lumber co inc.

Find all the facts and ideas about it in this article before you install one for your home design. Decking is machined to a single or double tongue and groove evis pattern. Tongue and groove roof decking especially the one from solid wood boards is one of the two most common choices for residential use right now. Alternate grades can be used upon request depending on span appearance requirements quantity and availability.

This arrangement is applicable to 4 or more supports 3 or more spans. With less than 4 supports a special pattern requiring specified lengths must be used. Irc table r803 1 lists 1 1 2 t g for rafter spans up to 72. Does anyone have experience using tongue and groove decking for roof sheathing.

Tongue groove structural decking structural decking also known as roof decking should not be confused with lumber intended for residential and non residential outdoor decks. All pieces are supported on three supports.