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pgriz

Professional Metal Roofer

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Join Date:

11-16-2007

Last Activity:

05-13-2008 8:29 AM

    ABOUT ME

  • Kayaking, astronomy, photography
  • Owner of roofing company
  • Paul Grizenko

LATEST ACTIVITY

  • Posted in thread: Insulate open rafter roof on 11-29-2007 at 03:29 PM
    Busyflyin, you will then have an under-insulated and non-ventilated cathedral ceiling roof.
    Snow on top of the roof will melt due to the heat loss from the roof, run to the eaves and
    freeze, forming i...

  • Posted in thread: Insulate open rafter roof on 11-28-2007 at 07:11 PM
    Busyflyin, we're not talking the same thing. First of all, a SIP panel does not give you
    anywhere near the R38-R40 of insulation you need in your roof system. So if you install a SIP
    panel over vertic...

  • Posted in thread: Insulate open rafter roof on 11-27-2007 at 05:18 PM
    The code for minimum air channel is 2 inches. So by putting 2 inch vertical battens, you
    satisfy that requirement. However, don't forget that the purpose of ventilation is 1) to
    dissipate residual hea...

  • Posted in thread: Insulate open rafter roof on 11-27-2007 at 07:38 AM
    Busyflyin, you have a beautiful cottage. If that was my place, I'd fill in the space between
    the rafters with blue styrofoam (5 1/2" should give you about R25-R30), install a vapour
    barrier across the...

  • Posted in thread: Insulate open rafter roof on 11-22-2007 at 05:26 PM
    glennjanie, the reason I didn't mention the method is because it wouldn't actually deal with
    the issues that I brought up in my post. Yes it can be done, but it won't provide adequate
    insulation, nor ...

  • Posted in thread: Insulate open rafter roof on 11-22-2007 at 08:17 AM
    You probably need R38 or R40 for your ceiling/roof. Depending on what kind of foam insulation
    you install, you get anywhere from R2 to R6 per inch. Fiberglas bats are usually around R3-R4.
    So your fir...

  • Posted in thread: Plywood siding - 2nd story on 11-19-2007 at 02:24 PM
    Ken, rent some scaffolding, and get yourself a helper. Moving plywood by yourself on one ladder
    is suicide. Gravity can be so unforgiving. With a properly installed scaffold, you have a safe
    platform ...

  • Posted in thread: total replacement of roof.... on 11-17-2007 at 04:54 PM
    If there's an opening cut through the roof (vent, pipe stack, etc.), the cut is usually square,
    and it's possible to measure the thickness of an exposed edge. Saw your photo, and the decking
    is defini...

  • Posted in thread: total replacement of roof.... on 11-16-2007 at 06:45 PM
    It's probably getting late in the season, and don't know if you have already commited yourself,
    but...It's not clear to me what kind of sheathing you have on your roof. Is it OSB or plywood,
    or planks...

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