Insulating / Discussions

Is it a good or bad idea to spray foam directly on the interior of shiplap siding?

...insulating the exterior walls of a home to improve energy efficiency, you have to make sure walls can dry. Applying spray foam directly to the back siding of yo...

Posted by MITCHELL KOCH Aug. 21, 2020, 3:49 p.m. Exterior cladding 1 Responses

What are the factors I should consider for choosing between a slab on grade and basement?

...insulating basements Choosing between a slab and a basement Thank you so much for taking the time to provide such a detailed response. It helps! Since...

Posted by Shaun B April 2, 2019, 6:35 a.m. Slab on Grade 3 Responses

Improving the efficiency of a home built in 1978 during renovations, do I need an HRV?

...insulating a home from the exterior and installing an air barrier , you may get to the point where you need a heat recovery ventilation (HRV) or a energy recove...

Posted by joe cruikshank Feb. 8, 2020, 12:08 p.m. HRV and ERV 1 Responses

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

Here is my problem: I have polyurethane spray foam inside the assembly cavity of my walls and unvented flat roof ceiling. It's impossible to air seal all the j...

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

Should I test my home for radon gas?

...insulating purposes? I don't know about anyone else, but personally for $60 I'd buy a twin pack and I'd test before and after especially if I lived in a potenti...

Posted by Mary Anne S March 5, 2019, 7:46 p.m. Radon in Homes - Mitigation 4 Responses

What is the best way to Insulate the crawl space of an old home?

I have a 120 yr old home with a dirt crawl space that is completely dry, no Mold in the entire home, has new windows and new insulation in the attic. I have st...

Posted by Aj Jan. 21, 2020, 8:13 a.m. Crawl spaces 1 Responses

How you vent a metal roof?

...insulating in the bays with Rockwool or perhaps cellulose (here is our page about how to choose the best insulation ) You would then need to add sheathing and a...

Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

How much insulation should I install underneath my concrete slab in my basement?

...insulating below grade slab is not cost effective as most heat is lost through the walls. Is my situation different because I intend to do radiant heating? ...

Posted by Scott Antonation Sept. 27, 2019, 1:06 a.m. Slab on Grade 3 Responses

How do you install rigid insulation to the outside of a brick house"

...Insulating an old brick house from the interior or exterior and adding a vapour barrier are two different things, so let’s address them separately. And since yo...

Posted by Gordon CASWELL Dec. 13, 2019, 11:38 a.m. Wall assemblies - renovation 1 Responses

What is the best way to insulate the ceiling of my crawl space?

I have a concrete floor in my crawl space under an addition (the rest of the house is on concrete slab). There is no ductwork, there is a sump pump, and the wa...

Posted by Judy Mendel Feb. 17, 2020, 11:10 p.m. Crawl spaces 4 Responses

What type of insulation under an outdoor deck frame with 2x8s?

...insulating the roof then I wouldn’t bother going too crazy anywhere else. May as well do the walls with a bit of insulation since you plan to add pine anyway, b...

Posted by Eric Dalpe Sept. 15, 2020, 9:13 a.m. Wall assemblies - renovation 3 Responses

How do you fix radon and water infiltration in a dry stone foundation?

...insulating stone foundations from the inside can be risky, I’d talk to a local professional about that and get it inspected first. Stone and mortar foundations ...

Posted by john flannery July 14, 2020, 4:24 p.m. Foundation and basement improvements 5 Responses

Can I add Larsen Trusses and cellulose to 1920s House in Minneapolis?

...insulating the exterior of old homes to improve energy-efficiency you need to be careful not to trap moisture inside walls. What you read about installing a pol...

Posted by Ken Traefald Feb. 17, 2020, 2:30 p.m. Wall assemblies - renovation 3 Responses