1x6 Tongue And Groove Roof Decking Spans

This document contains all that s needed to design and construct tongue and groove wood roof decking including span and load tables.

1x6 tongue and groove roof decking spans. Irc table r803 1 lists 1 1 2 t g for rafter spans up to 72. Span for 1x6 t g roof decking 08 25 2006 05 52 pm i have looked all over to try and find a span table for 1x6 tongue and groove roof sheathing and am coming up with nothing. With less than 4 supports a special pattern requiring specified lengths must be used. On 24 1x6 will work but put a layer of sheathing down to eliminate the roofing nail issue.

Does anyone have experience using tongue and groove decking for roof sheathing. 4 tongue and groove roof decking. I am looking to space rafters at 72 however i cannot find any information on diaphragm strength of the t g decking. All pieces are supported on three supports.

It is nominal 2 x 6 3 x 6 or 4 x 6 in 1 or 2 grade and kiln dried. Maximum moisture content is 19 for 2 x 6 3 x 6 and 4 x 6. Roof deck 2x6 or 1x6 t g we use 1x6 up to 3 but the roof is then strapped after with 2x4 then sheathing. Decking is machined to a single or double tongue and groove evis pattern.

Roof decking is southern pine as manufactured by s i. All end joints occur in line on every other support figure 6. Nominal three and four inch decking is especially well adapted for use with glued laminated arches and girders and is easily and quickly erected. See figures 1 and 2 lengths decking pieces may be of.