Home>Discussions>INSULATION & HVAC>Questions about insulating basement walls
3 posts / 0 new
Last post
twiggy2cents
Questions about insulating basement walls

We just bought a new house and the previous owners painted the basement walls. I want to put of polystyrene and gypsum but I wanted to make sure that the paint isnt going to cause water issues from sealing the concrete.

Also what are the disadvantages to using expanded over extruded polystyrene?

canuk
Re: Questions about insulating basement walls
twiggy2cents wrote:

We just bought a new house and the previous owners painted the basement walls. I want to put of polystyrene and gypsum but I wanted to make sure that the paint isnt going to cause water issues from sealing the concrete.
Not sure what you issues you are referring to -- water or condensation?

Also what are the disadvantages to using expanded over extruded polystyrene?

Aside from price --- read this http://www.dyplastproducts.com/newsletter/more_xpseps.htm

twiggy2cents
Re: Questions about insulating basement walls

Hmm, I found this by the same people w w w. dyplastproducts.REPLACEWITHDOTCOM/Customer_Bulletins/CUSTOMER_BULLETIN_0710.pdf

I am guessing this one is more up to date. It seems that the biggest thing is that it is a little more permeable, which in my case will be okay because the basement stays dry and I will keep humidity under control inside the basement.

TV Listings

Find TV listings for This Old House and Ask This Old House in your area.