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Old 01-18-2012, 08:01 PM   #1
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Advice on drywall types

I am in Canada but we tend to follow the lead of U.S. materials nand codes, so I am asking some general questions. In a cottage or house, regular drywall will be used for most of the walls and ceilings. I have recently heard that a fire proof drywall is required on a wall that seperates one building from another, true? (The buildings are not attached, but about 8' apart.). Next question is about bath/shower areas. I was also informed that aqua-board or other water resistant material is no longer required, True? What would be a recommended board for potential wet/damp areas? I am also considering some Lite drywall. I have heard some pros & cons, ... any comments?
I appreciate any and all feedback. Thanks.


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Old 01-18-2012, 08:16 PM   #2
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Not sure where your getting some of your info but it's wrong.
5/8 fire rock on ceilings, Garage walls and ceiling when it's attached to a home or there's a room above.
1/2' on walls in a home except in a bathroom. Some local codes call for paperless drywall on all walls except the area to be tiled, then you need cement board, others allow green board except in a wet area.
Equipment rooms (where a boiler or furnis is) have to have 5/8 fire code.
You really need to be talking to your local code office for the facts on what you need in your area.
I've never heard anything bad or had any trouble with the new light weight sheetrock.


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Old 01-18-2012, 09:28 PM   #3
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ok. some of that info is wrong for canada. in a residential setting for the common areas 1/2" board is fine everywhere other than in garages and bathrooms.

5/8" is required for a garage yes. and all commercial spaces as to achieve a proper fire rating.

now as for bathrooms, concrete board isnt the only thing used for areas to be tiled in the shower/bath zone. dense shield is a form of drywall that has no paper it has a fibreglass skin which is water proof on its own but needs the seams to be waterproofed as well. concrete board has to be completely water proofed with schluter. as for the rest of the bathroom space, for the best results to resist mould growth aqua board works best though you can use regular drywall but you will need to use a sealer type primer to help give it some added protection
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