Timber Framers Guild

Drywall on timber framing houses..

Posted By: Snickare

Drywall on timber framing houses.. - 04/19/15 07:38 AM

Hi Guys,
i have a question that maybe is silly but i canīt find the right answer for that..whatīs the best method for attaching drywall on a timber frame structure(house) that will be insulated without using SIPs..?could the drywall be screwed directly on the frame?some of you guys has a picture or some kind of drawing for explain to me how it works?thanks!
Posted By: Roger Nair

Re: Drywall on timber framing houses.. - 04/19/15 04:24 PM

Normally, drywall is fastened to the enclosure frame and the enclosure is fastened to the timber frame.
Posted By: Snickare

Re: Drywall on timber framing houses.. - 04/19/15 06:38 PM

ok i understood,so the drywall is never fastened directly on the timber frame from outside..or there are exception? it is not at all possible to screw the drywall directly on the timber due to swelling and shrinking of the timber,or there are other issues?
Posted By: Roger Nair

Re: Drywall on timber framing houses.. - 04/19/15 09:16 PM

There is, of course, no one way or order to enclose a frame, it's all a matter of design. The complications of exterior walls are related to the various systems contained in the walls, so the drywall is normally hung after the walls are weather tight and the insulation, wiring, plumbing, hvac, windows, doors and etc. are in place. So if you can avoid the entanglement of systems in the walls and not be concerned with weather spoiling the drywall and if you can get the walls up quick and if your timber is seasoned, then fasten the drywall close to the center of the timber and cross your fingers and say a prayer.
Posted By: Snickare

Re: Drywall on timber framing houses.. - 04/19/15 09:32 PM

that sounds scary...i was reading some articles about wrap and strap..like in this video https://www.youtube.com/watch?v=jNdipEU3xoo instead of using T&G boards attached to the frame as finish wall could drywall be used and continue the system as described in the video??
Posted By: Roger Nair

Re: Drywall on timber framing houses.. - 04/19/15 09:48 PM

I have made many miscalculations but I would not go down this path. Every abut of 2 x 4 with foam is a potential condensation factory and dam, especially in the north.
Posted By: Snickare

Re: Drywall on timber framing houses.. - 04/20/15 04:48 AM

what about a simple yet effective way to insulate without SIP and in the same time substitute T&G boards with drywall..??
Posted By: Roger Nair

Re: Drywall on timber framing houses.. - 04/20/15 12:46 PM

Since I do not live in the north, I have not worked through the problems and conditions you would have to deal, so I will not advise a system, but urge you look for local knowledge and please share what you learn.
Posted By: Snickare

Re: Drywall on timber framing houses.. - 04/20/15 01:05 PM

thanks Roger for finding the time to answer me..i will look around and see what i can find..thanks!
Posted By: collarandhames

Re: Drywall on timber framing houses.. - 04/21/15 02:36 AM

We're getting into building envelope issues. Are we relying on the styrofoam to create vapour barrier seals acknowledging the 1/3 2/3 rule of vapour barrier placement? This would imply the taped seal on the inner face, which is impossible to do, with the wrap and strap method, or do we have several layers of insulation? Also, the best choice method of strapping uses diagonal strapping before external siding, so any moisture that drives in can drain to the outside,, or you can cut dadoes. I've not been on the forum in quite some time,looks like a current thread, you're on the right path,, don't let me steer you wrong. I can' t see how far north you are, but we have definitely been using wrap and strap here in Peterborough. Loving the styrofoam insulation. With careful attention to polyurethane spray foam to the details. Need to think about dew point condensation. If attention is paid, you'll get a good warm house with no issues. If you rush the process, you can have mould issues.
Feel free to PM me, or we can carry on conversation here.
dave
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