Vapor proofing drywall

Jp.the.pope

Jp.the.pope

Well-Known Member
Any thoughts on sealing drywall from the inside against grow room humidity? Previously finished room being converted. Trying to keep the drywall intact if possible.

Hoping to reuse the walls when finished with the grow, main concerns are smell and moisture/mold.

Somehow I think I'm over thinking this. Feel free to chime in. There are no wrong answers just interesting discussions.
 
Jp.the.pope

Jp.the.pope

Well-Known Member
That was the initial thought. Just concerned about condensation between drywall and sheeting resulting in mold a couple years from now.
 
Jp.the.pope

Jp.the.pope

Well-Known Member
Colorado is changing the real estate disclosure laws vis a vis grow houses. If you grow it's now potentially considered a stigmatized property requiring disclosure to your agent and any potential buyer.

New reqs go into effect 1/2017.

Just trying to get ahead of the curve.
 
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disratory

Well-Known Member
well if its sealed all the way around over the drywall how could the humidity get in-between the plastic and the wall?
 
tusseltussel

tusseltussel

Well-Known Member
There is specific drywall you can get designed for moist areas, it's normally green or blue
 
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disratory

Well-Known Member
wouldnt the wall be insulated from the outside already? unless the drywall is the only thing between the inside of the house and the outside?
 
farmasensist

farmasensist

Well-Known Member
I've used white garbage disposal bags cut up to cover bare insulation on the basement walls. It's thick and reflective and makes it look cleaner. Haven't had any problems with moisture between the insulation and plastic.

When I started growing in a finished room, I was worried about the carpet and dry wall soaking up moisture but it's not a problem. The room is really dry from all the fans and lights. I can spill water on the carpet or run off tray and it's dry the next day.
 
Aeroknow

Aeroknow

Well-Known Member
tusseltussel said:
There is specific drywall you can get designed for moist areas, it's normally green or blue
Click to expand...
You don't see too much green board anymore. The stuff was bullshit anyways. And blueboard is for a plaster veneer.
Paperless drywall would prob be best in this situation, if the concern is that high.
Jp.the.pope said:
Colorado is changing the real estate disclosure laws vis a vis grow houses. If you grow it's now potentially considered a stigmatized property requiring disclosure to your agent and any potential buyer.

New reqs go into effect 1/2017.

Just trying to get ahead of the curve.
Click to expand...
I'm a sheetrocker/lather/framer by trade. Been building growrooms also for a very long time too. If the walls are insulated/vapor barrier/rocked/taped and you have a problem with condensation behind white/black poly, you fucked up somewhere big time, and/or humidity is way too high within the growroom in the first place imo.
 
Jp.the.pope

Jp.the.pope

Well-Known Member
I wanted to use zinsser watertite but it's like 3 weeks out to order to CO. Mostly an East coast deal.

Used a semi gloss white to waterproof and added the mold/mildew additive. Going to build a wood frame with poly/panda to finish off the room.
 
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