Walls / Discussions

How should I insulate basement Walls in climate zone 5?

...walls are already dry and mold free? the exterior of the basement walls has 2” of foam on them so any warmer air from finished basement would permiate through m...

Posted by Chad Johnson March 25, 2019, 8:33 p.m. Basements improvements 1 Responses

Can I put a breathable peel and stick weather (air) barrier on the inside walls and ceiling?

...walls and unvented flat roof ceiling. It's impossible to air seal all the joints and sistered joists with caulk or sealant because where the SPF meets the joint...

Posted by Anomika Singhn Oct. 1, 2018, 9:56 p.m. Air and vapour barriers 1 Responses

Can you install foam boards directly against basement walls?

...walls directly against the concrete, then rigid insulation boards afterwards? If so then I would say they are an expert in making mold grow perhaps. We must be ...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 4 Responses

How do you remove moisture and condensation from basement walls?

...walls . As for your last question, yes, unfortunately the only way to fix it that we can think of is to remove it and do it properly. If you do that in the wi...

Posted by Aaron Keating July 27, 2019, 4:51 p.m. Basements improvements 3 Responses

How do you insulate a 70s home with 2x4 walls that has fiber glass insulation?

...walls . And here's another page all about how best to insulate exterior walls from the outside on older homes . Have a read over that to get some ideas and send...

Posted by Mark Aussenegg Nov. 26, 2018, 6:49 p.m. Wall assemblies - renovation 1 Responses

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

...walls have always been kept warm due to heat loss, you will be subjecting them to the freeze / thaw cycle if you are in a cold climate and you insulate the wall...

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

Does using T & G wood plank instead of drywall affect where we put the vapor & air barrier?

...walls. In the Edelweiss Demo House we used vapour barrier paint on the walls but we used poly on the ceiling. As for your building inspector, that could go eith...

Posted by Sue Colbourne Nov. 9, 2019, 6:16 p.m. Walls and ceilings - interior surfaces 3 Responses

Can you use Foam boards on basement walls to stop condensation?

I am finishing my basement and my basement exterior walls are fully framed about 2” away from the concrete. They have mineral wool in between the stud bays but...

Posted by Chad Johnson Dec. 21, 2019, 7:59 p.m. Basements improvements 3 Responses

What is your experience and thoughts on pre-fab wall assemblies?

...walls and more even more likelyis that prefabricated kit homes will be built, delivered and installed, faster and cheaper than the houses we currently build. We...

Posted by Shaun B Nov. 12, 2019, 4:16 p.m. Wall assemblies - new construction 2 Responses

How do you prevent walls from rotting in humid climates?

...walls rot that could be for a number of reasons - it could be design related, quality of workmanship, or even due to a ‘ micro-climate ’, meaning their very spe...

Posted by Rose Alderson Nov. 5, 2018, 4:34 p.m. Wall assemblies - new construction 1 Responses

How do you prevent mold in a finished basement?

We had a water leak in our basement earlier this year and when the contractors started pulling off damaged drywall we were disgusted to find that our basement ...

Posted by Brian Cole Nov. 22, 2019, 10:22 a.m. Basements improvements 1 Responses

Can you use a vapour retarder paint on the ceiling instead of using a poly vapour barrier?

...walls? Vapour barrier paint (or Vapor barrier paint in the U.S. ) is more of a solution for walls rather than ceilings to prevent the indoor vapour drive during...

Posted by Anwas Qwelten June 8, 2019, 3:56 p.m. Air and vapour barriers 2 Responses

What is the best way to insulate a crawlspace to keep humidity down and stop odors?

...walls and a cement floor, insulation between the floor joists and has 3 - vents to the outside. I am thinking of 1" foam boards on the walls, sealing the floor....

Posted by Dave Bell Oct. 24, 2019, 3:57 p.m. Crawl spaces 3 Responses

What is the best way to insulate a home from the outside?

...walls inside and out, keep the structure but add insulation to the inside but also the outside of the walls so we don’t lose too much space inside. Do you have ...

Posted by Sylvie Gagnon Dec. 12, 2017, 11:58 a.m. Wall assemblies - renovation 1 Responses

Is it OK putting 1 inch of EPS under vinyl siding with no wall insulation good?

...Walls have no insulation, siding is T-1-11 from the sixties would like to put 1 inch EPS under vinyl siding. the building is pretty well built. no sagging parts...

Posted by Roger Smith Nov. 12, 2019, 6:34 a.m. Wall assemblies - renovation 7 Responses

How do I create a complete air barrier using a vapour retarding primer?

...walls and ceiling. Any tips on this? The short answer is that you can’t, the vapor retarder primer won’t do anything for air leakage. What it can be used for is...

Posted by Mihai Wilson May 3, 2018, 10:15 p.m. Wall assemblies - renovation 1 Responses

Is polyiso board or styrofoam best for insulating when finishing a basement in CO?

...walls the same way they build above grade walls, without realizing that they can’t dry to the outside. So putting organic materials like wood against a wet co...

Posted by Evan B. Nov. 21, 2019, 8 p.m. Basements improvements 1 Responses

What infloor radiant heating would you use in a corewood home design?

...walls are not very airtight, so you're going to need some juice in that system of yours if you want a cozy home. Building cord wood walls is not super common so...

Posted by John Yoho Feb. 6, 2020, 10:59 p.m. Wall assemblies - new construction 1 Responses