Stack / Discussions

What are your thoughts about incorporating natural ventilation techniques into the heating/cooling/ventilation design of a house?

...stack effect, night flushing, cross ventilation) along with mechanical ventilation (HRV or ERV) for a mixed mode ventilation strategy? Is there modeling softw...

Posted by dean c Jan. 18, 2020, 3:51 p.m. Ventilation 1 Responses

How do you seal up an old fireplace chimney?

...stack of bricks with a layer of rigid insulation (rockwool or expanded polystyrene) and half inch-thick plywood, which can then be covered to match the rest of ...

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

How do you insulate a crawlspace?

...stack effect, this air will also rise into the conditioned living space above. Rather than inviting in new humid air in a crawlspace with ventilation hatches, y...

Posted by Drew Weistend Nov. 14, 2017, 9:22 a.m. Crawl spaces 1 Responses

How do you lower high radon levels in a basement?

...stacks are becoming mandatory in many regional building codes, and the can be installed afterwards in some situations, but it really depends on your specific le...

Posted by Uma Parekh May 22, 2020, 11:54 a.m. Healthy indoor air quality 1 Responses

My door lock keeps freezing to the point I can’t open it, any idea why this would happen?

...stack effect), air will leak in on the lower levels and leak out on the upper levels, and as warm humid air leaks out, it condenses and freezes. Air may be co...

Posted by AJ Nov. 13, 2016, 1:15 p.m. Walls and Roofs 1 Responses

How much does a Tesla roof cost?

...stack of solar roof tiles dropped in your laneway. That doesn’t include getting them installed, nor does it address the issue of storing solar power in home bat...

Posted by Anthea Larke June 18, 2019, 7:45 a.m. Renewable energy 1 Responses

How do you fix radon and water infiltration in a dry stone foundation?

...stacked stone meets bedrock. The p revious homeowner reported ~12" of standing water during a tropical storm and the sump losing power. The exterior water ing...

Posted by john flannery July 14, 2020, 4:24 p.m. Foundation and basement improvements 5 Responses

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

...stack effect of warm air rising will create a convection in the house as well as create a positive pressure at the top portion of your building enclosure. How m...

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

Do I need ceiling fans if I have an HRV?

I have high ceilings and I will be adding an addition this summer with normal height ceilings and a new stairwell to the basement. Should I arrange for a ceili...

Posted by S McIntyre April 2, 2019, 10:01 p.m. Ventilation 1 Responses

How do you install your own DIY radon mitigation system?

Good morning, I'm looking to install radon mitigation (sub-slab suction). I understand it's not too difficult, but there are a few details I'm not sure about...

Posted by Ariel Fridman Jan. 27, 2020, 10:59 a.m. Radon in Homes - Mitigation 1 Responses

How do you remove water droplets from under a crawl space vapor barrier?

...stack. Not trying to find problems for you, but radon is still a bit unknown, and a very serious health concern. Here are our pages on it detecting and mitigati...

Posted by Paul Racioppo Feb. 7, 2020, 3:49 p.m. Crawl spaces 3 Responses

Is a vapor barrier necessary under a concrete slab with foam insulation and if so, where does go?

...stack is mandatory . To continue about radon – exposure to radon gas in homes is the second greatest cause of lung cancer. There is no way to test radon level...

Posted by Grady 22 Aug. 17, 2019, 12:19 p.m. Air and vapour barriers 3 Responses

How do you fix high humidity levels in a basement?

...stack effect, humid 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...

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