Renovations / Discussions

What is your opinion on filling block foundations with concrete?

Our house is a little over 100 years old, with a cinderblock foundation walls in the basement. We’ve got a minor crack in the grout, and we were advised to fil...

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

Which type of exterior insulation to use on a house?

...renovations, since rarely do older homes have a proper air barrier. If those pages don’t answer all your questions please write us back, they may even inspire a...

Posted by Trevor Marshand May 26, 2020, 1:16 p.m. Insulation and soundproofing 1 Responses

Which is the best basement insulation?

...renovations

Posted by Alex Kesheshian April 23, 2020, 12:29 a.m. Basements 1 Responses

Can you mount heavy objects to a Passive House Larsen truss wall?

...renovations, but in cases where it isn’t part of the load bearing wall it won’t be as solid and able to hold weight the same as the load bearing portion of the ...

Posted by Jay Stevenson July 3, 2020, 2:42 p.m. Wall assemblies - renovation 1 Responses

Can you install foam boards directly against basement walls?

I read in one of your articles when putting up rigid foam to Install two inches of rigid insulation board directly against concrete. A mold expert told me to p...

Posted by Ted Gorab Oct. 3, 2019, 6:09 p.m. Basements improvements 15 Responses

What is the best way to reduce humidity in a basement?

We live in Bellingham WA and our basement was built in the 70's. It has high humidity (70-80%RH) although I don't see any visible damp anywhere. The washer/dry...

Posted by Robert J. Pierson Oct. 17, 2019, 10:45 p.m. Basements improvements 2 Responses

How do you fix high humidity levels in a basement?

Good morning, I bought an older house (built 1965) in September 2018 and shortly after moving in (mid October), I was experiencing extreme joint pains. Stran...

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

Can basement walls to dry to the inside with foam board?

I'm planning to install and seal 2 inch eps foamboard to my basement foundation walls. From all of my reading it says that your basement foundation walls can o...

Posted by Tim Hanrahan Aug. 20, 2020, 12:34 a.m. Basements improvements 6 Responses

How do I stop a leak from my attic?

I'm getting water dripping down the inside walls of two opposite exterior walls. I checked the attic and found 1) frost of the underside of the roofing plywood...

Posted by Markus Duess Feb. 11, 2019, 12:42 a.m. Roof assemblies - renovation 1 Responses

Should I test my home for radon gas?

...renovations that you would need to undo to fix the problem. Wierd that Health Canada calls under 200 bq the 'safe' level. I get that you need to pick a point so...

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

Is There a Difference Between an Air Barrier and vapor barrier?

Hi, I have an open beam house (no attic access) built in 1962. I live in cold, dry Edmonton Alberta. My low slope roof doesn't leak, however about once a year ...

Posted by Sherri Mccormick Aug. 17, 2018, 3:24 p.m. Roof assemblies - renovation 3 Responses

Halo Exterra rigid exterior insulation - has anyone work with it?

...renovations will be. The following page will help you understand some of the risks and find the best way forward - The easiest way to insulate walls from the ...

Posted by George Shannon Jan. 21, 2020, 3:39 p.m. Insulation and soundproofing 9 Responses

What is the best way to insulate the basement of an old house?

...renovations The poly vapor barrier that you may have seen in that article is mostly to satisfy building inspectors, or to be used as part of a radon gas barri...

Posted by Bryan Squirrell Jan. 14, 2020, 7:59 p.m. Basements improvements 1 Responses

How do you build a mold-free basement in a new construction house?

...renovations: How to prevent mold when finishing basements We can help you choose the best way forward from this point, but we will need more information, so h...

Posted by Charmaine Herzig Feb. 10, 2020, 7:32 p.m. Basements improvements 3 Responses

What is the best way to finish basement walls?

...renovations, specifically raising the bottom plate up on foam blocks to prevent water damage in case of flooding, that will also stop moisture from the concrete...

Posted by Aram Scaram Jan. 21, 2021, 5:13 p.m. Basements improvements 3 Responses

What is the best way to install basement insulation with existing framing?

...renovations over the last couple of decades. Poly works on above grade walls, but below grade in basements it usually leads to rotting walls and mold. If ther...

Posted by Nick Trotta Sept. 20, 2021, 8:29 p.m. Foundation and basement improvements 7 Responses

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

...renovations where the room is on the back wall. The house exterior is 2 x 6 framing. I gutted the stud cavity down to the tintest sheathing. And installed 4" of...

Posted by J. Ferguson Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 12 Responses