Air tight homes / Discussions

Improving the efficiency of a home built in 1978 during renovations, do I need an HRV?

...tight homes, seems like air quality could/should be improved in older leaky homes as well. Or would the excessive air leaks make the HRV not effective? The on...

Posted by joe cruikshank Feb. 8, 2020, 12:08 p.m. HRV and ERV 1 Responses

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

...tight air-seal. How is this usually conducted in Ontario? I see a lot of Tyvek but my impression is that this wasn't truly airtight. Hey MT, I'm wondering if ...

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

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

...air tight wall (as tight as I can anyways). The remaing portion of wall cavity was filled with Roxul Comfort Board. Then drywalled. That was possible only becas...

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

Where do I start to build a small, affordable, low-maintenance house?

...homes are better. If you are looking for a mobile tiny house, here are a few links to check out: How to Build Tiny Houses on Wheels for Cold Climates Are ...

Posted by Ocean-Lynn Georgelin Oct. 22, 2019, 11:40 p.m. Concept and design 2 Responses

Should you keep duct work out of the attic?

...Homes should be airtight and have a suitable amount of insulation for the climate zone where they are built whether the roof is vented or unvented. read more he...

Posted by Frank Liu July 23, 2020, 8:53 a.m. Ventilation 1 Responses

How do you do Radon mitigation when with insulating and ventilating a crawlspace?

...air tight) and put in a 6" PVC exhaust pipe with an inline exhaust fan to the outside. I'm waiting for the results of a second radon test. I used canned spray...

Posted by Cathy Gaskins Feb. 17, 2021, 3:46 p.m. Radon in Homes - Mitigation 1 Responses

Wood Burning Stove - Do We Need A Cold Air Vent to Safely Operate?

...airies in winter). As a rule, all airtight houses, especially new builds like meet zero homes, LEED or Passive House, require an air vent that can not be clos...

Posted by Regina Vigil Feb. 15, 2021, 3:11 p.m. Wood stove and biomass heat 2 Responses

Are Insulated Concrete Forms and Gigacrete panels good?

...air tight without a lot of additional work, dont have thermal bridges, and they tend to have a hard time catching fire (important where I live). I'm looking for...

Posted by Dallin Sumpter Feb. 21, 2019, 2:46 a.m. Wall assemblies - new construction 5 Responses

How do you do a vapor barrier in a dense pack cellulose wall?

...air tight homes with interior air conditioning can create a significant differential in temperature and humidity from indoors to out compared to homes in the pa...

Posted by Ian MacKay July 26, 2018, 2:48 p.m. Wall assemblies - renovation 4 Responses

Does a low radon air reading necessarily = low radon in well water?

...air-borne radon. Our house is probably moderately air-tight; its a century home that has been updated, runs a woodstove regularly, but with no HRV. The bathro...

Posted by Steve Bull Jan. 4, 2020, 1:45 p.m. Radon in Homes - Mitigation 5 Responses

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

...air circulation behind the vapor barrier when furnace fan turned on. Isn't the vapor barrier there to stop warm air from inside home reaching cold air in the wa...

Posted by David Mitchell Aug. 14, 2018, 6:32 p.m. Basements improvements 30 Responses