Air space / Discussions

Should I vent the space between a block wall and vapor barrier?

...air space of an inch or so won’t do much to alleviate the problem, since that air will soon be fully saturated (as in reach 100% Relative Humidity) and the walls will then keep producing moisture or water at the same rate.  Have you considered putting in an interior french drain? If you were to break up the concrete al...

Posted by Nick Santore Oct. 10, 2020 Basements improvements 1 response

Can basement walls to dry to the inside with foam board?

...air gap or no air gap, because concrete walls aren’t perfectly uniform, so unless you spread a thick coat of adhesive evenly over the whole surface of the EPS and press it firmly to the wall until it sets, there will be minor air gaps. Whether you try or not you’ll probably have one : )  Here is another good page to re...

Posted by Tim Hanrahan Aug. 20, 2020 Basements improvements 7 responses

What is the best way to put siding on an older home without causing it to rot?

...air barrier on the wall before we side it? - should we remove the insulbrick? - should we install styrofoam?  If so, what type? - should we strap the wall before siding it (with or without the styrofoam)? - should we leave an air gap (either behind the siding, behind the styrofoam or both)? From what I have read, we ar...

Posted by Richard Reinert April 18, 2021 Wall assemblies - renovation 1 response