Air / Discussions

Could a ductless heat recovery ventilator be used for radon mitigation?

...air through the existing ductwork, however I realize that there is no fresh air coming in or stale being pushed out. Perhaps a plain old air-to-air exchanger th...

Posted by Jim B Feb. 20, 2021, 4:40 p.m. Radon in Homes - Mitigation 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

What is the best way to insulate a 1780 brick federal with stone foundation in New York?

...air and from water leaks. Any advice is apreciated. Insulating the outside of the foundation is a much better idea if you can do it. Insulating the interior of ...

Posted by carole roseman Jan. 5, 2020, 2:39 p.m. Foundation and basement improvements 1 Responses

How can I insulate an interior back wall that is NOW an exterior back wall?

...air. I need to insulate the building. When renovating exterior walls you need to observe the normal practices for wall assemblies or ‘control layers’, meaning a...

Posted by Sabrina Ross Sept. 21, 2020, 10:55 a.m. Wall assemblies - renovation 1 Responses

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

...air quality could/should be improved in older leaky homes as well. Or would the excessive air leaks make the HRV not effective? The only way to truly know if ...

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

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

...air barrier , we had our poly barrier go through the wall assembly and taped it to the exterior air barrier membrane. That would be a solution for new builds,...

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

Do you need ventilation in a cold storage pantry in a high performance house?

...air that causes food spoilage, but high humidity. By introducing outside air, there is the risk of greater temperature fluctations because the above ground air ...

Posted by Brad Sullivan April 12, 2021, 1:13 a.m. 1 Responses

Do you need an HRV or ERV in a 68 year old home?

...air filter installed. Do I need an HRV or ERV ? Do you think this house would have sufficient fresh air ?

Posted by Gary Szymkowski Nov. 1, 2020, 10:11 a.m. Ventilation 0 Responses

Which exterior insulation is best to create at thermal break in an bungalow in Alberta?

...air barrier on our 1970s raised bungalow. We have a fully insulated (with spray foam) basement up to the rim joists. This space is now wonderful to live in. ...

Posted by Rebekah Barnes Jan. 17, 2020, 10:07 p.m. Wall assemblies - renovation 1 Responses

When I use my stove hood I get smoke odours in my home, is that due to negative pressure and how do I fix it?

...air through the furnace chimney, does this make sense and what should I do? Hi, first a couple of questions back to you, does your furnace have an outside air i...

Posted by Anonymous Dec. 11, 2017, 12:37 p.m. Healthy indoor air quality 1 Responses

What are the HRV or ERV options for 40-yr 2-storey 2000 sq ft home?

...airs 800 sq feet until outside temps fall to zero degrees C, after which the forced hot air must supplement it Have any new options appeared on the market tha...

Posted by T Newell July 17, 2020, 1:59 p.m. HRV and ERV 1 Responses

What is the best way to deal with a drop ceiling in a high humidity room?

...air tight" barrier layer into 2x4s (no nails in the air). Suggestions on this approach or other ideas? Much appreciate it as i am homeowner trying to get educat...

Posted by steve Roberts Dec. 24, 2019, 8:01 p.m. Walls and ceilings - interior surfaces 1 Responses

What is the best wall for a house by the sea in New Brunswick?

The house will be subject to strong winds and rain, and a high level of humidity (often 100%). We have now installed a air heating floor (Legallet), the roof i...

Posted by Nathalie Lacaille Jan. 6, 2021, 9:36 a.m. Wall assemblies - new construction 0 Responses

is a double vapor barrier on a South Florida roof bad?

...air barrier but not a vapor barrier, would the moisture only travel one way? I have read one option is to a/c the attic space, another is to install the 'peel...

Posted by Arthur Moore April 6, 2020, 12:57 p.m. Roof assemblies - renovation 0 Responses

What type of HRV ventilation system should I use?

...air per hour what type of recovery system should I use

Posted by Erik Baardsen March 16, 2021, 7:14 p.m. HRV and ERV 0 Responses

Can I see details about the heating and domestic hot water systems of the Edelweiss house?

...air of the home. The domestic hot water is a heat pump as well, we used an AO Smith air-to-water hybrid heat pump . The water heater sucks in the air from the...

Posted by August Wehrmann March 10, 2019, 9:26 a.m. Heat pumps, geothermal and AC 3 Responses

How do you install a ground loop for an HRV?

...air after it has partially been cooled by the HRV. This loop could also be used by a SHWH to heat the air in the winter also bringing a further energy savings. ...

Posted by Lee Watt July 10, 2018, 12:43 a.m. HRV and ERV 2 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