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

Why is there Mould on particle board outside vapor barrier on new addition?

...walls. We wonder whether the mould is caused by condensation between the vapor barrier and the particle board. The house had air conditioning going all summer. ...

Posted by Christine ML June 7, 2020, 1:35 p.m. Wall assemblies - renovation 1 Responses

What is the best material to use for wall and roof insulation?

...walls can dry , also read about the importance of air barriers for energy efficiency and durability . If walls are not built with airtightness and an ability to...

Posted by Babak K July 12, 2020, 8:43 p.m. Insulation and soundproofing 1 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

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 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

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

...walls, but can only excavate about 50% of foundation due to concrete stairs and platforms around the exterior. Not really sure what to do at this point. Read ma...

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

Is cross laminated lumber to heavy to frame a cantilevered room?

...walls. Termites and woodrot have eaten the exterior walls posts and beams. And as it is 15 ft in the air with sun exposure I hope never to paint the exterior. S...

Posted by Teresa Pfiffner May 20, 2020, 7:43 p.m. Wood and organic materials 0 Responses

What is your recommendation for an air source heat pump?

...walls with spray foamed 9' walls, vaulted southern kitchen and living room with passive solar window design and 6' overhang on south& west walls. 1 1/2" R 7.5 s...

Posted by Martin Dandeneau July 9, 2020, 2:30 p.m. Heating and cooling 3 Responses

Should a Vapor Barrier be installed over Exterior Grade Plywood?

...walls are insulated with traditional Fiberglass Pink. I will be putting solid 3/4" wood siding over top of the exterior walls. I plan on strapping the cottage w...

Posted by Michael Klauck March 6, 2020, 1:24 p.m. Air and vapour barriers 1 Responses

Should I install basement drain tile vents?

...walls through the floor to the drain tiles . he claims this prevents mold from forming behind finished walls. Does this work or is it only a path for Radon and ...

Posted by gary taube Dec. 11, 2019, 10:14 p.m. Foundation and basement improvements 3 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