Tongue And Groove Roof Decking Spans

4 tongue and groove roof decking.

Tongue and groove roof decking spans.

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. I am looking to space rafters at 72 however i cannot find any information on diaphragm strength of the t g decking. 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. 1 grade lumber decking is standard and is used where construction requires the finest appearance and high strength.

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. American institute of timber construction standards for tongue and groove heavy timber decking. Just wondering if anyone has used this decking to act as the roof diaphragm. Maximum moisture content is 19 for 2 x 6 3 x 6 and 4 x 6.

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. 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. Roof decking is southern pine as manufactured by s i. 2x6 tongue and groove as roof sheathing 18x16 gable roof over my deck with exposed rafters and no ceiling.

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. It is nominal 2 x 6 3 x 6 or 4 x 6 in 1 or 2 grade and kiln dried. Storey lumber co inc. See figures 1 and 2 lengths decking pieces may be of.

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. Nominal three and four inch decking is especially well adapted for use with glued laminated arches and girders and is easily and quickly erected. Irc table r803 1 lists 1 1 2 t g for rafter spans up to 72.

Find all the facts and ideas about it in this article before you install one for your home design. Does anyone have experience using tongue and groove decking for roof sheathing. All end joints occur in line on every other support figure 6. Tongue and groove decking provides the customer with an outstanding solution for roof and subfloor structure where exposed to the lower level.

All pieces are supported on three supports. This document contains all that s needed to design and construct tongue and groove wood roof decking including span and load tables.