Insulate block foundation / Discussions

What is the best insulation for concrete block foundation wall and basement stud wall system?

...Insulate the interior of a CMU or block foundation is not as simple as with poured foudations as they are only held together but the mortar between blocks, so they are not nearly as strong as a poured concrete foundation.  So right off the bat I would say if she is able to, insulating the exterior of block foundations ...

Posted by Don Fraser Dec. 8, 2021 Foundation and basement improvements 2 responses

How do you improve an old block foundation with no insulation or exterior moisture barrier?

...block foundation which is 42" to 48" below grade; walls 30-32" above grade which slopes down and away from foundation/wall intersect.  Basement walls parged and painted with mold resistant paint; floor painted. Auto dehumidifier always on 24/7 year after year; fan oscillating at rear of basement; try to keep humidity a...

Posted by Wilhelmina Lange March 11, 2021 Foundation and basement improvements 2 responses

Can you insulate a concrete block basement walls with only rockwool?

...block foundation wall for the first time when it has never been insulated can cause cracking as it suddenly experiences freezing. Butr if your basement wall was previously insulated then you should be fine, but take advantage of the fact that it is open to check the condition and make sure there is no cracking before y...

Posted by Aarne Valikangas Jan. 1, 2021 Basements improvements 1 response

How do you fix moisture problems in basement?

...block foundation would it be ok if I put Delta MS against the block foundation then apply the rigind insulation Thanks for your help. Putting a membrane like Delta MS against a foundation wall before studs is a great idea. Keep in mind though, that moisture may drain down the interior or the wall, so ideally you would ...

Posted by John rodrigues Nov. 27, 2020 Basements improvements 3 responses