What is needed to create a drywall ceiling?

6 years ago

Hi all,

So I’ve been having trouble with the asphalt odor permanently entering the garage from the roof particularly on hot days as there is no ceiling. The owner tried to help by adding a solar vent which obviously helped none as far as getting rid of the odor. Wondering what it would take to be able to create a ceiling here? It’s about 18x18 and there are only 4 beams that i believe are only 2x4’s. There’s the X diagonal beams as well so those would interfere I imagine with creating a ceiling. What’s a realistic idea here to seal off that odor?

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Comments (10)

houssaon
6 years ago
Is this from the roof? I don't have that problem in my garage. Was there an underlayment?
kudzu9
6 years ago
last modified: 6 years ago
That would be a pricy undertaking, and might not be feasible given that the rafters are too widely spaced and possibly undersized to handle the weight of sheet rock applied on the slanted roof, and you would have to create a structure to support a flat ceiling. Also those cross beams in the way would complicate the project. Finally, I don’t know if it would do anything to solve your odor problem.
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eliyetti
Original Author
6 years ago
Houssaon - it appears to be asphalt shingles placed on top of old wooden shakes. No covering on the inside just exposed shakes
eliyetti
Original Author
6 years ago
Kudzu9 - I figured any barrier would help to a large degree since it isn’t completely overwhelming but it’s odorous enough to be irritating. Wondering if a drop ceiling is at all possible as they’re much lighter
pricklypearcactus
6 years ago
You'd need to have rafters installed so that the distance between joists is correct for supporting drywall. The current situation with the X is interesting. I'm not a construction experts so maybe there's some reason why they did that. I believe the maximum joist spacing needed to support drywall is 24" but check your local codes (or talk to a professional contractor). Another alternative might be OSB which might allow for wider spacing of joists. Or yet another alternative might be corrugated metal.
kudzu9
6 years ago
A drop ceiling would also be costly and you might still have air leakage around the panel edges. The only thing I can think of is to staple visqueen sheeting to the rafters. It might not be pretty, but it would be light, cheap, and prevent odors as well as a more expensive ceiling could.
eliyetti thanked kudzu9
eliyetti
Original Author
6 years ago
Kudzu9 funny you mention that. I actually have some fire retardent plastic sheeting coming on Thursday as that was my initial idea. Was gonna put that up and just some polyester under it to look nicer. seems like the way to go
cat_ky
6 years ago
Your best bet, would be to have the asphalt roof removed, and the wood shingles too. Redo the roof properly with underlayment, and roofing felt, and then new shingles. Then its done right, and should be good for many years.
kudzu9
6 years ago
last modified: 6 years ago
eliyetti-

You mentioned the "owner" in your first post...is this a rental? Also, an afterthought I had was that you might want to check local fire code before putting up plastic and polyester....
houssaon
6 years ago
I agree 100% with cat_ky. Remove the shingles and have the roof replaced with a proper underlayment.