Air pressure / Discussions

How do you deal with a house under negative pressure?

...air pressure in a home - House Air Tightness - Why Balancing Air Pressure is Essential On air pressure, there is clearly a balance problem with an excess am...

Posted by Connie Taylor April 16, 2020, 1:41 p.m. Ventilation 1 Responses

I have chronic illness from the air quality of my home, can you help determine if I need to replace the HVAC system?

...air exchanger set up for someone with chemical and mold sensitivies. And any tips on setting up proper air pressure for air flow in home, don't want the attic...

Posted by Niki Harrison Sept. 6, 2019, 4:32 p.m. HRV and ERV 4 Responses

Can you insulate a concrete block basement walls with only rockwool?

...airspace. The point being, if you leave an airspace and the wall is not sealed, sounds to me there is a chance you may have an air convection behind the wall. T...

Posted by Aarne Valikangas Jan. 1, 2021, 9:22 p.m. Basements improvements 1 Responses

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

...air pressure inside the house, wind will create a negative pressure on the opposite side of a home and draw air from that wall. Air pressure in the home will ...

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

How do you stop wood stove smoke from entering a home?

...air pressure - House air tightness - why balancing air pressure is essential for indoor air quality The air pressure in your house may also be a factor, if ...

Posted by Don Leaver March 24, 2020, 10:49 a.m. Wood stove and biomass heat 4 Responses

Can you put a fireplace in a hyper sealed plastic wrapped A rated home?

...air out as there is no air to replace it, and won't a fire place be a risk to your health for example carbon monoxide poisoning or simply lack of air. will your...

Posted by Kerry Forides Sept. 24, 2020, 2:46 a.m. Wood stove and biomass heat 2 Responses

Are there auto balancing ERV/HRV system?

...pressure is out of balance, causing either backdrafting, or positive pressure on the building assembiles. Venmar, which is owned by Broan-Nutone has one called;...

Posted by Aldoogie Feb. 15, 2021, 3:56 p.m. HRV and ERV 2 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 tightness. This page here explains it well - How to balance air pressure in a home Depressurizing a home is a greater concern with newly built and very ...

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

How do you replace windows in a double stud wall house?

...pressure from above. Think of it a bit like a bridge that transfers the weight to either side of the window opening. And worth noting - replacing windows just t...

Posted by Sasha June 25, 2018, 10:25 p.m. Windows and doors 3 Responses

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

...air: Clean indoor air quality Removing dust and moisture from homes Choosing safe paints and finishes Choosing eco-friendly sustainable counter tops ...

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

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

...airflow and prevent nasty downdraughts which are made worse in high pressure weather conditions (think the prairies in winter). As a rule, all airtight houses...

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

How do you insulate a cottage crawlspace? It's in the Haliburton Highlands

...air hits the cold surfaces of a crawlspace or basement as it can lead to condensation forming. Is your dehumidifier a fairly modern one that shows a reading of ...

Posted by Beata Domanska May 25, 2020, 11:38 a.m. Crawl spaces 1 Responses

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

...air. By having two synchronized units the air pressure in the house stays balanced. You can see a DIY Lunos Ductless ERV installation video here.

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

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

...air or water of your home, addressing that would be my number one air quality priority. And further to your woodstove comment, one that pulls air from the house...

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

Should I replace my geothermal system with a gas boiler?

...air : You need to determine exactly what caused the failure, so first have a contractor pressure test the system to ensure it isn’t a leak down in the well. ...

Posted by Lawrence Brusnyk Oct. 31, 2018, 8:07 p.m. Heat pumps, geothermal and AC 1 Responses

Combo structural sheathing, WRB and thin insulation panel in Ontario?

...air and vapor permeance as well as thermal performance is a good idea as well. And a very important caveat - you need to choose the right products and install i...

Posted by Steve Bull Jan. 14, 2020, 6:06 p.m. Walls and Roofs 3 Responses

Can you create a passive wine cellar by insulating and air sealing a crawl space?

...air-sealed no matter how we try, air pressure will find some leaks, so the air will be changed if at a low rate. It would be wise to monitor the humidity in any...

Posted by JC Wong April 2, 2021, 6:50 p.m. Crawl spaces 5 Responses