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Old 10-03-2011, 09:20 PM  
kentvogel
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Default Need some advice on my renovation

I have listed some of the options / ideas of what I am going to do with each part:

1. Bathroom Ceiling:
Option1:
• 5/8” greenboard
• 6mil plastic sheeting
• on attic side, greenfiber blow-in up to a recommended amount to achieve a high R-Value

Option2:
• 5/8” greenboard
• Faced Fiberglass Insulation Batts (faced down toward the bathroom ceiling)
• On top of batts, greenfiber blown-in to a recommended amount to achieve a high R-Value

Which option would make more sense?

2. Exterior Wall (will have no fixtures / no running pipes, just a window)

• Ultratouch batts
• 6mil plastic sheeting
• 5/8” greenboard (for better insulation)

3. Tub/Shower wall surround:

• No insulation in wall cavities
• 6mil plastic sheeting
• ½” Durock
• Shlutzer Kerdi membrane
• Tiles


4. Also, I will be insulating a garage ceiling, so our bedroom (which is directly above this unheated garage) will be much warmer in the winter months.

• About 2” of insulated sheathing (like XPS, EPS, or Polyiso, etc.)
• Ultratouch batts
• 5/8” Type X Drywall

In terms of insulated foam sheathing, I am not sure which one would be best for this project. Should I use boards that contain laminated facers on both sides, on one side, or neither, just “unfaced”? Should I use XPS, EPS, or Polyiso?

Please, advice / comment on all of these above points.
Thank you.



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Old 10-03-2011, 10:14 PM  
nealtw
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Bathroom ceiling _ option 1
Bathroom walls 1/2" board is plenty
Tub surround - insulate exterior walls.
Garage- Fill the cavities with bat insulation and 5/8 drywall, drywall the rest of the garage to seal it so auto off gasses can,t enter the house.



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Old 10-08-2011, 06:20 PM  
CallMeVilla
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I would recommend spray foam for the entire garage ceiling. It fills the cracks, provides a sealed vapor barrier and is fast. After that, suit yourself as to drywall choice. Thicker provides better sound attenuation.

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Old 10-09-2011, 11:20 PM  
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Originally Posted by CallMeVilla View Post
. . . . . After that, suit yourself as to drywall choice. Thicker provides better sound attenuation. . .
Not really true. If the garage is attached to living quarters, the ceiling has to have 5/8" thick drywall, for fire rating purposes. Same for the common wall.
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Old 10-17-2011, 01:58 AM  
chrisbc
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You may not want to use greenboard for your ceiling in the main part of your bathroom. I don't believe it is rated for horizontal application, that is what i've read anyways. Apparently it does not have the same holding strength overhead for 16'' centres, you may be ok to go with furring strips at 12''oc if you are set on greenboard on the ceiling.

Proper bathroom paint and ventilation should prevent mould/mildew issues.

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Old 10-17-2011, 07:10 PM  
isola96
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Quote:
Originally Posted by chrisbc
You may not want to use greenboard for your ceiling in the main part of your bathroom. I don't believe it is rated for horizontal application, that is what i've read anyways. Apparently it does not have the same holding strength overhead for 16'' centres, you may be ok to go with furring strips at 12''oc if you are set on greenboard on the ceiling.

Proper bathroom paint and ventilation should prevent mould/mildew issues.
Oh I thought green board was fine for ceilings?!?... How about purple board? I cant imagine using regular for any bath unless it doesn't have shower....

Perma wash has a good mold proof paint.
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Old 10-18-2011, 01:00 PM  
chrisbc
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Oh I thought green board was fine for ceilings?!?... How about purple board? I cant imagine using regular for any bath unless it doesn't have shower....

Perma wash has a good mold proof paint.

I don't believe it is, although I have used it myself in small amounts over showers and whatnot. This is just something i've read online, however it seemed true.

I would never use green board in a "wet area" as in a tiled area around a shower. However I do believe that reguar drywall , providing the ventilation is proper and a good paint is used, will be fine in non wet areas of the bathroom. Although I do use green board quite a bit in bathrooms, I have taken apart many bathrooms with regular drywall (in non wet areas) and no issues whatsoever.

Anyways I would look into it on the web/ consult with the manufacturer. I believe I read on a contractors website that it is not rated for ceilings, and cannot support its own height hung from a ceiling. As to whether this would apply to the purple board I would assume so, but not saying for sure.
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Old 10-18-2011, 06:24 PM  
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Quote:
Originally Posted by chrisbc

I don't believe it is, although I have used it myself in small amounts over showers and whatnot. This is just something i've read online, however it seemed true.

I would never use green board in a "wet area" as in a tiled area around a shower. However I do believe that reguar drywall , providing the ventilation is proper and a good paint is used, will be fine in non wet areas of the bathroom. Although I do use green board quite a bit in bathrooms, I have taken apart many bathrooms with regular drywall (in non wet areas) and no issues whatsoever.

Anyways I would look into it on the web/ consult with the manufacturer. I believe I read on a contractors website that it is not rated for ceilings, and cannot support its own height hung from a ceiling. As to whether this would apply to the purple board I would assume so, but not saying for sure.
Yeah I haven't used purple board in any bathrooms I have done yet mostly green
I did a kitchen today and used green because I ran out of the white lol
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Old 10-19-2011, 12:46 AM  
walterjo
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just wanna ask how you design with your gate?

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Old 10-19-2011, 01:11 AM  
chrisbc
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Yeah I haven't used purple board in any bathrooms I have done yet mostly green
I did a kitchen today and used green because I ran out of the white lol


Yeah I do that too. Beats a trip to the store.


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