Moisture / Discussions

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

...moisture, so the source of the moisture is not something like a washing machine, it is the porous concrete floor and walls absorbing moisture, which then migrat...

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

Can you provide Crawlspace Insulation Design Assistance?

...moisture from the ground will be a constant source of humidity in the air. Humid air not feels cooler, but heating humid air requires more energy than heating d...

Posted by Randy Christensen Dec. 10, 2019, 12:17 p.m. Crawl spaces 1 Responses

Can you help me choose between a slab on grade and pressure treated wood foundation?

...moisture will always be rot. So building a house on wood buried in the ground is not something we have or ever would recommend. And a slab on grade is an alte...

Posted by Margot Simonot May 20, 2019, midnight Slab on Grade 1 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

Where does a vapour barrier go when building a shed in southern Ontario?

...moisture escape. It’s called certainteed Membrain, and when too much humidity builds up, it actually has pores that open and let some moisture escape. But keep ...

Posted by Charley Nelson Nov. 5, 2020, 10:09 a.m. Wall assemblies - new construction 1 Responses

How do you Insulate a 3 season cottage?

...moisture movement in winter and the ensusing risks don't really apply to a 3 season cottage, that doesn't have air conditioning nor would I say do the performan...

Posted by Terry Skindilias April 23, 2019, 9:27 a.m. Wall assemblies - renovation 4 Responses

How do you install a ground loop for an HRV?

...moisture. This will offer minor benefits in terms of dehumidifying the air. Systems such as this are not terribly hard to Jerry-rig yourself, but you can also...

Posted by Lee Watt July 10, 2018, 12:43 a.m. HRV and ERV 1 Responses

Is it normal that condensation forms on the windows of my new home?

...moisture you generate in the home (through washing, cooking and bathing) increases the overall level of humidity. New buildings often take a bit of time to dry ...

Posted by Kevin Newman April 19, 2017, 10:30 a.m. Windows and doors 1 Responses

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

...moisture in the soil is drying into the air, and that humidity will find its way into the main floor of your house. Do you have a hydrometer for testing the rel...

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

What is the best way to insulate the exterior walls of an older home?

...moisture inside the walls, which is why we most often recommend installing some sort of Mineral Wool insulation like Rockwool (formerly Roxul) but there are oth...

Posted by Geoff Kavanagh June 30, 2020, 4:01 p.m. Wall assemblies - renovation 1 Responses

Can I spray foam insulate from the outside?

...moisture out, but it also makes the exterior walls more structurally sound, adding strength to a home and making it more durable. Insulation in the exterior wal...

Posted by Kurt Klischuk June 6, 2019, 8:56 a.m. Wall assemblies - renovation 3 Responses

The thickness of vapor retarding latex paint - Is measurement wet or dry?

...moisture protection on the walls due to it’s construction, you can see more about the wall we build with vapor barrier paint here – Building science of walls ...

Posted by Kim Boas July 24, 2020, 10:36 a.m. Basements improvements 3 Responses

What is the best way to do wall construction using Charred Cedar Siding?

...moisture that does make it in can safely be drained out. Depending on the style of siding - which can be vertical like board and batten, or horizontal like cl...

Posted by Dobie Cheung June 6, 2020, 10:44 p.m. Exterior cladding 1 Responses

How do you fix high humidity levels in a basement?

...moisture from the ground below and release it into the home. And if it is not insulated, it will of course feel cold as well. I think the next logical step is...

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

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

...moisture moves right through it, so you won’t accidentally be trapping moisture inside walls. It is also hydrophobic, meaning it is very resistant to moisture a...

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

What is the best way to seal around windows?

...moisture well. I would suggest you pull out any thing that is currently in there, Crickets etc :). Then install the mineral wool but try not to jam it too tig...

Posted by Bryan Squirrell Oct. 8, 2019, 8:53 p.m. Windows and doors 1 Responses

Is it possible to connect greenhouse with the building?

...moisture to a home. We much prefer to see a greenhouse separated from a house, and to instead take advantage of the southern exposure for passive indoor heati...

Posted by Julia Jedrys March 31, 2020, 6:47 p.m. Greenhouses and Sunrooms / Solariums 1 Responses

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

...moisture goes through it and water drains through it. You can add as much rock wool as you want, or as little as you have to if there are other considerations l...

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