Foam / Discussions

I want to insulate the outside of my house, which type of insulation do you think is best?

...foam insulation at about 1 inch thick will act as a vapour barrier, EPS foam insulation will start to act as one at about 2 inches, and polyisocyanurate (the on...

Posted by J. Ferguson Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 7 Responses

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

I have a crawlspace with 4' concrete walls and a cement floor, insulation between the floor joists and has 3 - vents to the outside. I am thinking of 1" foam b...

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

What is the best way to insulate my basement?

...Foam Board Insulation over the bare concrete and leave the framed walls insulated as the are? 2. Install Foam Boards over the concrete and replace the foam in...

Posted by Chris Rogers Oct. 27, 2019, 11:23 a.m. Foundation and basement improvements 1 Responses

How do you insulate a cathedral ceiling?

...foam insulation. My walls are double 2x4 stud walls 12 inches deep and will have 2-3 inches of closed cell spray foam insulation to create a air and vapour barr...

Posted by Raoul Lions Oct. 19, 2019, 8:07 a.m. Roof assemblies - new construction 1 Responses

Should a Vapor Barrier be installed over Exterior Grade Plywood?

...Foam insulation. In the future I may add A/C to the cottage. Do you believe a Vapor Barrier to be necessary? Thank-you Michael Vapor barriers can be a problem w...

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

How do you fix high humidity levels in a basement?

...foam insulation; the foundation around my house on the outside surface has been waterproofed (4 cracks were found inside the basement walls) and the grading rev...

Posted by JR Tadinac Aug. 21, 2019, 11:26 a.m. Healthy indoor air quality 3 Responses

What's the difference between a slab on grade and a monolithic foundation?

...foam forms to get a quote for an addition in Michigan and keep reading about slab on grade and monolithic foundation styrofoam forms - is there a difference or ...

Posted by Ronaldo Johnitas Dec. 10, 2019, 6:12 a.m. Slab on Grade 4 Responses

How do you insulate a cottage crawlspace? It's in the Haliburton Highlands

...foam boundary. One half has all the plumbing, 2 radiators, spray foam around perimeter and a dehumidifier with hose exiting to outside. The vents on this side h...

Posted by Beata Domanska May 25, 2020, 11:38 a.m. Crawl spaces 1 Responses

What do I in my basement where new insulation meets old?

...foam them (like you it's not our first choice but it works) or you can cut pieces of foam boards and place them between the joists and seal them with acoustic s...

Posted by Steve J July 20, 2019, 10:01 p.m. Basements improvements 2 Responses

Can I reclaim old triple slider windows?

...foam, and achive better results than buying all new windows for a fraction of the cost? We have a ton of trees around the house so there is virtually no solar...

Posted by Keanan Toews Jan. 20, 2019, 1:01 p.m. Windows and doors 1 Responses

How do you remove moisture and condensation from basement walls?

...foam or rigid foam and do not change the exterior waterproofing, will that stop the moisture from coming inside? Or is digging down and adding a waterproofing m...

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

What is the best way to insulate a 2x8 wall?

...foam or 2 layers of 4" foam board not sure which kind would be best ......or spray foam and fill the rest with rock wool....it would be nice to talk to someone ...

Posted by Michael Sweglar July 8, 2020, 10:43 a.m. Wall assemblies - new construction 3 Responses

How do you best use polyiso insulation in a basement?

...foam board : fiber faced (white) (IKO Therm 3) or the older product, Organic faced (gray) polyiso. Both products have visible 2mm (+/-) holes in both sides of t...

Posted by Iain Matheson Jan. 24, 2020, 7:45 p.m. Basements improvements 1 Responses

Basement reno - How do I effectively insulate my basement?

...foam EPS (1.5" or 2"?) +wood stud with Rockwool R14 +Drywall +moisture/vapour barrier laytex paint. Which EPS thickness should I go with? Concrete Slab: DMX a...

Posted by Steve J Feb. 13, 2019, 10:25 p.m. Foundation and basement improvements 2 Responses

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

...foam insulation. Since we moved in, I know that the addition's floor is very cold in the winter and in the summer we don't really have to use air conditioning b...

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

What is the best material to use on top of Plywood for water proofing?

...Foam, Delta Dry etc. For help choosing a weather barrier for the exterior of a home see here – Choosing a house wrap, which is best? In our 2015 LEED Platin...

Posted by Babak K July 27, 2020, 12:22 a.m. Air and vapour barriers 3 Responses

How do you fix a moisture problem in a finished basement?

...foam insulation on basement walls is not a bad one. However, spray foam itself is a vapour barrier, so you wouldn’t need to apply a typical 6 mil polyethylene v...

Posted by Margo MACFARLANE Oct. 28, 2019, 10:24 a.m. Foundation and basement improvements 1 Responses