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
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...