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Posted by Larry Caldwell on April 21, 2007, 12:40 pm
bozarth.d@gmail.com (dpb) says...
> > Hi all -
> >
> > By front porch pad is concrete poured over galvanized, corregated steel
> > plates. Underneath is a full 13 course foundation depth. I recently added
> > an insulated door from my insulated basement into this uninsulated, under
> > porch space.
> >
> > Since I did that I've gotten a huge amount of condensation on the steel
> > plating inside that area at times. I figure I need to add a layer of
> > insulation to cover the steel plating on the inside, but I'm not sure what
> > kind to use.
> >
> > I was thinking about the great stuff foam, but it would turn into a huge
> > mess - plus I have 160sqft to cover. Ideally I'd like to find a spray
> > paint type application that I can use since troweling something into the
> > corregrated grooves would be hard. Is there anything like this out there?
> >
> > I considered using the rigid foam board, but I think the gaps between the
> > depressed parts of the steel and the foam would still allow condensation to
> > form and drip down from the edges...
> >
> > Any ideas?
>
>
> Gunnite?
Rigid insulation. Bead board or Styrofoam(tm). Construction adhesive
will hold it up. Tape the seams to prevent condensation.
You will need to do something to deal with the moisture in the air,
which is the source of all the condensation. Put down a vapor barrier
on the ground, like visqueen, and run it up the concrete block.
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