Block foundation / Discussions

Can you Insulate a cinder block basement foundation with Rockwool?

...Block Foundation from the interior using Rockwool, here are the factors we would prioritize and how we would do it. First, the three main rules of durable bas...

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

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 De...

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

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?

...block foundations are not as strong as poured concrete, so in very cold climates they are more susceptible to cracking if left to freeze and thaw. Hey Mike, ...

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

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

...block foundation wall from the inside in cold climates is risky as it can cause cracking. This is due to the introduction of the freeze/thaw cycle. I can't wr...

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

How do you apply vapor barrier and insulation to a CMU house?

...block should I apply it to? Foundation made of CMUs (aka Cinder block foundations ), are trickier to fix than poured concrete foundations . They are not nearly ...

Posted by Scott Brekke Nov. 22, 2019, 9:37 a.m. Basements improvements 2 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

What is your opinion on filling block foundations with concrete?

...block foundation is weaker than a poured foundation, so any cracks should be more closely examined, and block foudations are better insulated on the outside tha...

Posted by Nina Hartt March 21, 2019, 8:06 a.m. Foundation and basement improvements 1 Responses

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

...foundation/walls are concrete block and we have 2 sides done with interior plastic membrane to french drain and sump pump, one side exterior waterproofing, and ...

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

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

...block foundation addition. The basement is not insulated, the roof has very little insulation with vermiculite ( been tested ok) in the attic. I wanted to find ...

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

What is the best way to do exterior foundation styrofoam finishing?

...block foundations. I saw a reputable company do some parging over a mesh on the styrofoam and two years later it was all flaking off from the frost. The only ...

Posted by Castor River Farm Jan. 31, 2021, 12:56 p.m. New foundations and slab-on-grade 1 Responses

What options are there for pre fab Passive House kit designs?

...block foundation and piers) into a garage with a 550 sq ft passive house on the main floor. Do you have recommendations for pre fab kits? I have seen the Kenoga...

Posted by Kim MacKay Dec. 27, 2019, 3:12 p.m. Planning and Design 1 Responses

How do you insulate a crawlspace with dirt floor?

...block foundation that slide open with a little screen. We have rigid foam panels on the concrete block walls (2 inch) The cottage is 900 square ft. To complicat...

Posted by sal Bellicoso Oct. 30, 2019, 4:56 p.m. Crawl spaces 2 Responses

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

...block foundation or wall, at least in a cold climate. Without insulation, the blocks have been warm all this time, so suddenly being exposed to the freeze / tha...

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

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

...foundation walls if that is a problem you experience. Blocks are very porous so they will absorb ground moisture and try to dry to the inside, but are you dir...

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

Should I insulate my basement ceiling?

...block foundation since they are not nearly as strong as a poured concrete foundation. It is only held together by the mortar, so it is more susceptible to crack...

Posted by Nina Hartt March 21, 2019, 8:23 a.m. Basements improvements 1 Responses