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How is what supposed to breath?
Posted by: Pablo (699) on 2015-01-25 20:39:20 In Reply to: If that's the case, how is it supposed to breathe? posted by 5speed6 v.3 on 2015-01-25 20:10:47	Share \| Report

Closed cell foam is sprayed under the sheathing and the rest of the bay is filled in with fiberglass. The foam acts as a vapor barrier and the material on either side is vapor permeable. The roof isn't vented at all. It's a hot roof.

Thread:

Poll: How high would you put the collar ties? - Pablo 2015-01-25 12:32:57 (364 views)
- I walled around the ties in my attic. 13' peak makes the room just feel bigger. - 8Rings 2015-01-26 11:52:27 (122 views)
  - If I understand what you're saying correctly, I'd box them in with some hardwood. - Pablo 2015-01-26 12:29:56 (231 views)
    - no flat horizontal in that pic, show them and then get new drywallers - doug 2015-01-26 21:53:15 (117 views)
      - There might be at the very top. The pic is cut off. - Pablo 2015-01-27 11:57:06 (98 views)
    - That is exactly what I'm saying and plan to do only - 8Rings 2015-01-26 16:26:50 (122 views)
    - Beautiful. - 30V-6 2015-01-26 13:37:21 (87 views)
- skip, drywall guys don't need it. Will make the room feel small. - doug 2015-01-25 20:40:40 (102 views)
  - They're telling me they need it. - Pablo 2015-01-25 20:45:54 (172 views)
    - Lol, they're lazy. - freakness 2015-01-26 12:33:59 (96 views)
    - If that's the case I would place it as high as possible and maximize the height of the - Grapeking 2015-01-25 21:24:15 (144 views)
      - Tks. - Pablo 2015-01-25 22:06:01 (132 views)
- In your case, I'd put them so that the horizontal length is 48-1/2" - gription 2015-01-25 15:58:52 (164 views)
  - That's exactly how I did mine in an attic apartment.... - 5speed6 v.3 2015-01-25 20:15:08 (118 views)
  - I'm doing the framing, but not the drywall. - Pablo 2015-01-25 17:57:39 (140 views)
    - All of the above, actually - gription 2015-01-25 21:25:00 (133 views)
      - The max possible height of the ceiling would be 13' or so. - Pablo 2015-01-25 22:05:18 (105 views)
  - I vote for 24 1/2" & a scaffold. - 30V-6 2015-01-25 17:37:16 (101 views)
    - 2nd - freakness 2015-01-25 20:25:55 (95 views)
    - A scaffold? - Pablo 2015-01-25 18:32:24 (127 views)
      - No. Just saying a work platform will make your life easier & safer. <edited - added image> - 30V-6 2015-01-26 00:17:25 (169 views)
        
        Fantastic tool to have. - gription 2015-01-26 09:14:05 (110 views)
- no more than 1/3 down - ModifiedA4 2015-01-25 15:01:16 (99 views)
- off, but - vapor barrier? - Max_A6 2015-01-25 13:10:15 (107 views)
  - There's spray foam under the fiberglass. - Pablo 2015-01-25 13:26:30 (99 views)
    - If that's the case, how is it supposed to breathe? - 5speed6 v.3 2015-01-25 20:10:47 (103 views)
      - How is what supposed to breath?  -  Pablo  2015-01-25 20:39:20 (138 views)
        
        wait - condensation is expected to go back thru sheetrock?  -  Max_A6  2015-01-26 08:35:12 (109 views)
        
        How is that any different than a typical house where the vapor barrier...  -  Pablo  2015-01-26 09:08:45 (117 views)
        
        I imagine the vapor barrier itself and sheetrock are approx. at the same temp  -  Max_A6  2015-01-26 09:14:33 (116 views)
        
        The whole house is like this (and read my edits in the previous post).  -  Pablo  2015-01-26 09:26:39 (120 views)
        
        Ahhh, so no soffits at the base of the rafters then.   -  5speed6 v.3  2015-01-26 00:43:11 (93 views)

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