Rénovations / Discussions

Can I spray foam insulate from the outside?

I bought an old timer home on Gibsons, BC and the siding needs replacing. I want to use the opportunity to seal up and insulate the wall cavity once exposed. I...

Posted by Kurt Klischuk June 6, 2019, 8:56 a.m. Wall assemblies - renovation 1 Responses

Do I need ceiling fans if I have an HRV?

I have high ceilings and I will be adding an addition this summer with normal height ceilings and a new stairwell to the basement. Should I arrange for a ceili...

Posted by S McIntyre April 2, 2019, 10:01 p.m. Ventilation 1 Responses

Can you put hemp insulation in an attic?

I need to pull the cellulose from the attic, I have a radiant barrier on the attic ceiling and floor. I am removing the cellulose, but what non toxic insulatio...

Posted by Pamella Weatherly-Phillips Aug. 16, 2019, 11:49 a.m. Roof assemblies - renovation 1 Responses

Is Blum hardware LBC compliant or free of Red List components?

I can find no information on this online and Blum seems to be vague about it also. Any assistance would be appreciated. That is a great question, and so far we...

Posted by Phil Lipton Aug. 27, 2019, 10:45 a.m. Kitchens 2 Responses

What is the best way to insulate rim joists with EPS and batts?

I'm trying to insulate Rim joists /cripple walls in basements have read about three methods using EPS & batt with slightly different orders. Plan to insulate c...

Posted by Steve J July 18, 2019, 3:53 p.m. Basements improvements 1 Responses

Do you have suggestion for non-toxic closet design company, or materials?

We are renovating a house, and moving in fairly soon. We live in Southern California, and I want to avoid toxic materials, particularly in the bedrooms. Can't ...

Posted by Nicole Lucas Haimes Oct. 11, 2019, 10:51 p.m. Materials and resources 1 Responses

Can you install foam boards directly against basement walls?

I read in one of your articles when putting up rigid fome 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 4 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

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

Should I test my home for radon gas?

I plan on improving insulation to the point of needing an air exchanger. I thought it best to test for radon gas after I've tightened up the major air leakage ...

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

For home renovation, is it better to install insulation on the inside or outside?

Hi, I have a 1955 red all brick bungalow. the interior walls are a very thick plaster board (maybe 1" or more thick). I want to take the walls down to the stud...

Posted by Neil Richardson Jan. 29, 2019, 4:09 p.m. Wall assemblies - renovation 1 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

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

I’m insulating my basement with 2” of EPS against poured concrete foundation, then framing a 2x4 wall, then adding Rockwool. Unfortunately, due to some areas, ...

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

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

I read your article about insulating interior basement walls, using eps or Rockwool comfort board then 2 x 4 studs with rockwool bats. I've also seen the part ...

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

What is the best way to make a row house in Montreal Quebec more energy efficient?

Background: House attached on both sides, built in 1875, in Montreal. Two stories and a basement. Main and 2nd floor have wood floors that I don't intend to ch...

Posted by Elizabeth Brown Feb. 26, 2019, 9:09 p.m. Wall assemblies - renovation 3 Responses

How can I get rid of moisture between the vapor barrier and the insulation in a basement?

It's a fairly new house (about a year old). The concrete basement foundation walls are framed (wood), insulated, sealed with a plastic vapor barrier, but not d...

Posted by David Mitchell Aug. 14, 2018, 6:32 p.m. Basements improvements 2 Responses

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

I saw in your wall video that you advise to use a vapour retarder paint along with an outside air barrier. Can you do this for the ceiling as well, thereby tak...

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

How do I insulate my half below grade basement?

I am about to start a full strip out and rebuild of my basement to make a secondary suite. I've been reading all the information on the site and find it very u...

Posted by tom mckeand Oct. 14, 2019, 11:01 p.m. Basements improvements 1 Responses