wall thimble framing?

cac4 Posted By cac4, Aug 4, 2008 at 9:36 PM

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  1. cac4

    cac4
    New Member 2.
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    Jul 11, 2008
    376
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    Loc:
    Essex County, MA
    I was just perusing the install instructions on simpson duravent's website. they say you're supposed to "frame" the opening for a wall thimble. does anyone actually do that?? in a standard 15" stud cavity, you'd have to cut a 15" hole to do that properly.
     
  2. cncpro

    cncpro
    New Member 2.
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    Jun 29, 2008
    341
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    Loc:
    NE Connecticut, USA
    I cut some pieces just small enough to fit in the opening and screwed then in one at a time. I used 2 on the bottom, 2 on top, and one on each side then screwed from inside & out. I was imagining they wanted it framed up to keep insulation and/or foreign material from getting against the thimble so i figured my lame approach would be OK...

    I'm not sure if it's correct or not... I'm just telling you what I did. ;-P
     
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