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Moisture between vapor barrier and insulation in shed

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Moisture between vapor barrier and insulation in shed Victag 02-10-2007
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Posted by Rima Neas on February 11, 2007, 4:32 pm
> Thanks for the reply Michael,
> We have had the heat on high so it is definitely warmer inside and the
> moisture is a sweat on the whole wall, so we have ruled out any
> leaks. We have just replaced all VB and insulation trying to solve
> this problem and it is back again. Thank god we did not put up the
> drywall yet!
>

I am here asking questions myself, so do not presume to know the answer,
but....

If the insulation was previously made wet, it would stand to reason that you
would get renewed moisture on the VB after re-sealing the cavity. Under
this scenario, you would have even more condensation on the felt paper under
your siding. Another, albeit unlikely, source of moisture is the lumber
used to make your wall. Perhaps if it was quite green and got a good
soaking prior to being sealed in. If you were to open things up yet again,
make sure to let everything get bone-dry before putting up a vapor barrier.

Cheers, Shawn



Posted by Bill on February 11, 2007, 5:20 pm
Is the wall in question facing east?

--
please reply to bargerw NO @ SPAM bellsouth.net and remove the NOSPAM


> We have just insulated our shed and put vapor barrier inside the
> insulation, with a layer of tar paper between the insulation and the
> siding. We are noticing that one wall is sweating and moisture is
> collecting between the insulation and vapor barrier. Berfore we
> drywall, we want to eliminate the moisture. The attic of the shed is
> vented, so I can not understand why we are seeing this moisture
> still? Does anyone have any advice as to how to fix this and why we
> would still be getting moisture? We would like to use the shed as an
> office and have also installed heating. Are we still lacking proper
> venting or is this likely because we have not properly sealed the
> vapor barrier? Thanks in advance for any help.
>



Posted by Michael Bulatovich on February 11, 2007, 6:12 pm

> We have just insulated our shed and put vapor barrier inside the
> insulation, with a layer of tar paper between the insulation and the
> siding.

I just noticed this line. There is nothing but paper between the studs and
the siding?
--


MichaelB
www.michaelbulatovich.ca



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