Insulate basement / Discussions

Should I put foam boards right against my basement wall or leave an air gap?

...basement to our home has no insulation with a cinderblock wall that they have either applied white paint or drylok to, can't tell though. The basement is also a walkout so three sides are exposed to air while the front of the house is underground. My question is should I apply 2 inch foam board to the inside of the wal...

Posted by Elijah Hargett Jan. 9, 2021 Foundation and basement improvements 4 responses

What is the best way to install 5" of XPS rigid foam on interior basement walls?

...insulate basements properly so they won’t go moldy Wood studs will almost certainly be wet when you buy them and install them, that is what you need to allow to dry to the interior since they can’t dry to the exterior. Putting wood studs against a basement wall and then putting plastic over them is why almost all basem...

Posted by Sean MacDonald June 14, 2021 Foundation and basement improvements 8 responses

How do can I insulate an existing basement floor from 1906?

...basement is only 21% of total under house footage. 79% is crawl space. Basement Never painted. Walls go up 4 ft to a 2ft wide ledge and then the old stone foundation. 1 side is an exterior wall; 3 sides are crawl space beyond the stone.  A lot of heat is lost through uninsulated basement floors, so good idea to fix tha...

Posted by Cathy Gaskins Feb. 18, 2021 Basements improvements 3 responses