Air seal / 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 3 Responses

What is the best way to insulate a home from the outside?

...air barrier to the inside, meaning – if you have a polyethylene membrane on the ceiling as an air and vapour barrier, you need to make sure that it is sealed to...

Posted by Sylvie Gagnon Dec. 12, 2017, 11:58 a.m. Wall assemblies - renovation 1 Responses

What is the process to seal a house using Aero barrier spray?

...seal? The Aerobarrier air barrier spray you likely read about here does not stick to vertical surfaces, but it does fill all the holes (up to a certain size), s...

Posted by Santiago Pacheco Feb. 13, 2020, 11:06 a.m. Air and vapour barriers 3 Responses

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

...sealing the floor. There is no moisture only when I put a piece of plastic down. Just want to warm it up a little and keep away any smell. Can you help me. I li...

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?

...air from the basement will rise to the living area , so fix the problem down there and you may fix it upstairs. If you do plan to do further work, we can certai...

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

Should I build a basement or slab on grade?

...seal a concrete slab on grade floor in case you go that route. Here is another page that may be of value - Legalett slab on grade kits with air heated radiant...

Posted by robert baker March 27, 2020, 6:54 p.m. New foundations and slab-on-grade 9 Responses

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

...airs. This page explains it clearly - The difference between air barriers and vapor barriers What is almost certainly happening is that warm, humid air is e...

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

Can you install foam boards directly against basement walls?

...Airboard ), then they were taped to really seal them up - before and after readings on the humidity were like night and day, and the temperature with zero addit...

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

How do I get rid of carpenter ants?

...seal any cracks. • Caulk around doors and windows to block their entry points and prevent air leakage. Install mosquito nets at any openings like dryer vents ...

Posted by Shawn B Nov. 14, 2017, 10:27 a.m. Pest control 1 Responses

Can you provide Crawlspace Insulation Design Assistance?

...air. Humid air not feels cooler, but heating humid air requires more energy than heating dry air. So that 6-mil poly membrane is essential above all else for co...

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

Are mice droppings and urine toxic?

...air and surfaces of your home. After removing the insulation and before reinstalling new insulation, be sure to do a thorough cleaning. When all the contamina...

Posted by JT Nov. 14, 2017, 4:49 p.m. Pest control 1 Responses

How do I stop a leak from my attic?

...seal house-to-attic penetrations like the bathroom vent, and wiring, insulate the bathroom vent. Any thoughts? Frost buildup in an attic is a result of moistu...

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

Should I bother testing for radon in a gutted and uninsulated house?

...airs and then test it, or, just run with the assumption that you may have it and take the pretty affordable steps ahead of time just in case, read more here – ...

Posted by Luba Sharapan March 27, 2021, 12:04 p.m. Radon in Homes - Mitigation 3 Responses

What are the most cost-effective green building strategies in new home construction?

...air-sealing of the envelope – Absolutely, make a home as well-sealed as you can and let your ventilation equipment do their job. A poor air barrier and lots of ...

Posted by M T Nov. 4, 2019, 11:07 a.m. Concept and design 3 Responses

I have many issues with my house where should I start?

...seal the house, then insulate the outside basement wall, to the roof, then re-side the house, and insulate roof. Or insulate inside basement walls, and insulate...

Posted by Bryan Squirrell Sept. 29, 2019, 3:08 p.m. Wall assemblies - renovation 1 Responses

Can you Insulate a cinder block basement foundation with Rockwool?

...air space regardless of how you space it, and air spaces are always good to have. But, it is also very important to make it airtight. If you have a Basement wal...

Posted by Victor B June 19, 2019, 11:41 p.m. Basements improvements 5 Responses

What is the best foam board insulation under drywall?

...air tight seal. One thing I would point out, is that for the effort of going around the house with all the rigid boards, is that a 2 inch panel instead of 1 i...

Posted by Wesley Pracht Jan. 11, 2020, 8:10 p.m. Wall assemblies - renovation 1 Responses

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

...seal them with acoustic seal. The acoustic seal can be messy to deal with but it really works well and stays flexible. We always prefer EPS foam boards since ...

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