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Tongue-and-groove ceiling

I currently building an addition and plan on putting up a knotty pine tongue and groove (1x6, 3/4" thick) ceiling attached to the bottom of scissors trusses. The trusses are 24" on center. I plan on putting up 5/8" drywall first to get an airtight assembly. The tongue and groove pine is end matched (ends are tongue and groove as well). My question is this, with the drywall up, am I ok not ending each piece of pine on a truss seeing that the ends are also tongue and groove, or am I asking for trouble if the boards aren't nailed on the ends?

Posted Jul 23, 2014 7:17 PM ET
Edited Jul 24, 2014 4:50 AM ET


3 Answers

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I would use rigid foam as you then add insulation. I never use drywall.

You can put your joints where ever and they will do fine.

Tape the rigid foam seams and caulk it glue it to the entire perimeter for a good air seal.

Answered by aj builder, Upstate NY Zone 6a
Posted Jul 23, 2014 11:21 PM ET


No you are just fine as long as the boards aren't all shorts and span at least two trusses.

Answered by Malcolm Taylor
Posted Jul 24, 2014 12:39 AM ET


Thank you for the replies, I appreciate it.

Answered by SCOTT KOONS
Posted Jul 24, 2014 6:26 AM ET

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