Air leakage / Discussions

Should I test my home for radon gas?

...air exchanger. I thought it best to test for radon gas after I've tightened up the major air leakage in my home. What do you think? Yes, it's always a good idea...

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

Do I need a standard 6 mil poly vapor barrier with dense cellulose exterior wall?

...leakage is visible from the inside. My question is if I install a poly barrier over the cellulose on the inside under the drywall, will I then cause vapor to be...

Posted by jeff Chormann May 1, 2020, 9:18 a.m. Air and vapour barriers 2 Responses

How do I create a complete air barrier using a vapour retarding primer?

...air and vapour movement comes from the fact that usually one product (6-mil polyethylene) is used as both the vapour barrier AND air barrier, but air leakage an...

Posted by Mihai Wilson May 3, 2018, 10:15 p.m. Wall assemblies - renovation 1 Responses

How do you attach exterior siding without affecting the air barrier on a passive house?

...air barrier sheathing when the joints are taped as specified by the manufacturer. There should not be any notable air leakage from additional fasteners used to ...

Posted by Scott Bowker July 16, 2018, 11:07 p.m. Wall assemblies - new construction 3 Responses

Do you have a diagram showing effect of winds on the pressure inside the house?

...air through any holes in your building envelope. That will create positive air pressure inside the house, and force air out other holes in your building envelop...

Posted by Bryan Bargen June 8, 2018, 5:20 p.m. Air and vapour barriers 1 Responses

Is it possible to reconcile installing a wood stove in a airtight, super-insulated house?

...air-leakage as long as it’s well-installed. The biggest concern with woodstoves in airtight homes is if they don’t have a direct air feed from the outdoors to...

Posted by rick seward Dec. 23, 2018, 2:49 p.m. Wood stove and biomass heat 1 Responses

How do you make an airtight house envelope?

...air barrier, and even spray foam can sometimes shrink and crack, leaving gaps that can lead to air leakage. Are you stripping the building down to the sheathing...

Posted by Valeriy Kraydman Dec. 1, 2020, 2:52 p.m. Air and vapour barriers 1 Responses

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

...air seal, you may want to actually do that first, which could be a simple matter of applying caulking or acoustic seal to the rim joists to stop air leakage whi...

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

Can you put hemp insulation in an attic?

...air barrier. If you don’t have a proper air barrier and you are removing all the insulation, then that is really the perfect opportunity to lay one down. Air ...

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

How do you seal up an old fireplace chimney?

...air leakage. Insulating chimneys from the outside: Cover the entire stack of bricks with a layer of rigid insulation (rockwool or expanded polystyrene) and ...

Posted by Gord Nov. 2, 2017, 10:06 a.m. Wood stove and biomass heat 3 Responses

What is the best way to do Stucco/E.I.F.S exterior window wraps?

...air sealing we tried and we were really happy with how little air leakage we found when we relied not on caulking but rather on a high-performance building tape...

Posted by Pat Estes July 17, 2020, 11:50 a.m. Windows and doors 1 Responses

Where to get good tape for taping air barriers?

...Air Stop are three examples of tapes with much better adhesion." I'm in Montreal and i was trying to find one of these brands of tape in local hardware stores b...

Posted by Frank Suerich-Gulick Sept. 12, 2020, 7:25 p.m. Air and vapour barriers 2 Responses

How do I get rid of carpenter ants?

...air leakage. Install mosquito nets at any openings like dryer vents and stove hoods. Keep the humidity level in the home low, down below 40% Relative humidi...

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

Should you insulate an A-frame cottage with cathedral ceiling from the exterior or interior?

...air leakage though them, so step one is an air barrier membrane. You can see our Air Barrier DIY install video here , and with knowing your climate zone we can ...

Posted by J Genereaux Oct. 26, 2020, 10:38 a.m. Roof assemblies - renovation 1 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 use insulated plasterboard on a tiny house that moves?

...air barrier to stop air leakage, no matter how good a job you do installing it you may only ever be one pothole away from a leaky house. And as for aesthetics, ...

Posted by Nadine Dermody April 23, 2021, 12:40 p.m. Tiny house 1 Responses

Does paint work instead of a poly vapour barrier?

...air barrier? More often than not over the last many decades the 6-mil poly is meant to be the air barrier as well, which is very different, read more here – T...

Posted by Bill Fletcher May 6, 2020, 1:46 p.m. 1 Responses

Should you keep duct work out of the attic?

...air barrier to reduce air leakage and energy loss As for your other question, yes, duct work should be kept within the conditioned space. Running heating vent...

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