Block wall / Discussions

What insulation should I put on basement block walls that is resistant to mold?

...block basement wall. Moisture issue in spring ( and I suspect fall). We get a lot of people asking about the best way to insulate a cinder block (CMU) foundatio...

Posted by Ken Gee July 31, 2019, 3:25 p.m. Basements improvements 4 Responses

What is the best practice to insulate a crawl space floor?

...walls, insulated and drywalled Crawl space has dirt floor, 3 cement block walls, open lattice wall to access crawl space, exposed floor joists 24'' o.c., heig...

Posted by austin Fanning March 16, 2020, 8:55 a.m. Crawl spaces 4 Responses

How would I rectifiy problem of foundation wall cracks with finished basement?

...block (or CMU) foundation wall from the inside in cold climates is risky as it can cause cracking . A cinder block foundation wall is not as strong as poured co...

Posted by Terry P July 22, 2020, 7:07 p.m. Basements improvements 3 Responses

Should you put insulation on the outside of a cinder block wall in a desert?

...block home with a 2 foot over hang. I studed my inner wall, I put R13 fiberglass and sheet rock, then on the outside I tared the out side and filled most of the...

Posted by Michael Apodaca March 9, 2020, 3:10 p.m. Wall assemblies - renovation 1 Responses

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

...walls were just about touching the block walls and had no barrior between them. I now am going to put 4 new walls up (same as before 3 exterior, 1 dividing). I ...

Posted by Nick Santore Oct. 10, 2020, 2:03 a.m. Basements improvements 1 Responses

Why does interior insulation cause a freeze/thaw cycle- cinder block foundation?

...block wall was not insulated on the exterior, if the interior space inside the wall is heated, then it will have and endless supply of heat to keep it warm. The...

Posted by P Mci July 5, 2021, 11:17 p.m. Foundation and basement improvements 1 Responses

What is the best way to insulate a concrete block house?

...blocks have been warm all this time, so suddenly being exposed to the freeze / thaw cycle can on occasion cause walls to crack. Concrete block walls are not as ...

Posted by kent wardecke Oct. 17, 2020, 11 a.m. Foundation and basement improvements 2 Responses

How do you fix moisture problems in basement?

...wall that has a lot of moisture and has rotted the studs I see you mentioned to do drywall, studs with mineral wood then 2" of rigid insulation attached to bloc...

Posted by John rodrigues Nov. 27, 2020, 8:50 a.m. Basements improvements 3 Responses

Should I install a poly moisture barrier before the rigid foam board against a basement wall?

...block wall (to be relocated in a new stud wall later) to make room for the new insulation process. From the block wall inwards I am considering the following ...

Posted by DONandCATHY Crenna Dec. 14, 2020, 2:21 p.m. Basements improvements 3 Responses

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

...wall, along with you saying you weren’t going to seal the wall. If you have a waterproof membrane against the block wall then there is no reason you can’t put t...

Posted by Aarne Valikangas Jan. 1, 2021, 9:22 p.m. Basements improvements 1 Responses

How should I install XPS insulation in a basement?

...block” basement wall that transitions to a course of narrower blocks above grade. An uninsulated rim joist sits on top of the sill plate on the narrower blocks....

Posted by Ken Hunold Dec. 27, 2020, 7:22 p.m. Basements improvements 0 Responses

Can you Insulate a cinder block basement foundation with Rockwool?

...wall fully above ground (walkout side) one wall fully below ground (opposite side) And 2 walls that grade slopes down from top of the wall (100%underground ) to...

Posted by Victor B June 19, 2019, 11:41 p.m. Basements improvements 5 Responses

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

...wall in, are there many cracks? And was it insulated before of is this the first time? If the block wall has always been exposed and kept warm (meaning no insul...

Posted by Elijah Hargett Jan. 9, 2021, 5:31 p.m. Foundation and basement improvements 4 Responses

What's the best way to seal a crawl space and insulate?

...blocks, that’s not a bad idea but do proceed with a bit of caution, as block walls are not as strong as poured concrete, and you may then be exposing the wall t...

Posted by Steven Johnston Feb. 23, 2021, 12:35 p.m. Crawl spaces 1 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 ...

Posted by Wilhelmina Lange March 11, 2021, 4:19 p.m. Foundation and basement improvements 2 Responses

I have many issues with my house where should I start?

...wall, to the roof, then re-side the house, and insulate roof. Or insulate inside basement walls, and insulate the roof. What is the best product to proceed with...

Posted by Bryan Squirrell Sept. 29, 2019, 3:08 p.m. Wall assemblies - renovation 1 Responses

My window drips when I run my air conditioning. What is the fix?

...block on that wall. I have been told that the exterior bricks along the top of the window should be taken out so that the window can be reflashed with a new vap...

Posted by Sean Sullivan Aug. 27, 2020, 10:36 a.m. Heat pumps, geothermal and AC 5 Responses

Where can I purchase non-toxic interior wall panels near Laval, Quebec?

...wall with low-dust drywall compound and zero VOC paint , and if you want a pre-finished formaldehyde-free wall panel you could try Columbia here . What was the ...

Posted by Louise Goulet Nov. 30, 2019, 1:14 p.m. Basements improvements 1 Responses