Make up air / Discussions

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

...up the envelope as I make improvements. One question I have though is does it make sense to install an HRV in an older leaky home? There are lots of articles ex...

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

How do you build an air heated concrete slab?

...up work for a one level house in this type of climate? If so how thick should i make the concrete floor between the empty air space and the tile? Does it make a...

Posted by Matt Wisniewski Dec. 27, 2020, 6:27 p.m. Passive solar home design 0 Responses

Is this a good way to insulate drafty windows?

...up with air, would it be effective in eliminating drafts and and behave much like a triple glazed window? Who would make a prototype to test the idea? The bladd...

Posted by Robert Schmidt Feb. 6, 2021, 5:47 p.m. Windows and doors 2 Responses

How do I insulate my half below grade basement?

...up the warm side of the studs (Studs kept off the wall obviously). Is this a viable solution? Should vents be added to allow full air flow behind the insulati...

Posted by tom mckeand Oct. 14, 2019, 11:01 p.m. Basements improvements 1 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

How do you make an airtight house envelope?

...airtightness levels, you can see a video of it here – How to install air barriers properly to make a house airtight – DIY video As for ERVs, installing a hi...

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

Where should I put a vapour retarder?

...make sense to put up one layer of insulation before wrapping with vapour barrier, and then two (or three) more layers outside? Thank you. Where are you located?...

Posted by Jeffrey Connell March 14, 2020, 4:25 p.m. Wall assemblies - new construction 4 Responses

What is the best way to insulate the exterior walls of an older home?

...uple of inches without encroaching, three max... If you have on older home plaster lathe then it is a pretty safe assumption you don't have an incorporated air ...

Posted by Geoff Kavanagh June 30, 2020, 4:01 p.m. Wall assemblies - renovation 1 Responses

How do you seal up an old fireplace chimney?

...air flow, so again, what you mention would work, but always make sure to create a good air seal. Thanks for you input!

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

Should I vent the space between a block wall and vapor barrier?

...make a 90 another 22ft another 90 and then another 22 ft? The top 32 inches of block are exterior if that makes a difference i just dont want me new work to be ...

Posted by Nick Santore Oct. 10, 2020, 2:03 a.m. Basements improvements 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?

...make sure your furnace has an outside air intake. If the stove hood is moving 400 CFM or more, it may be necessary to have a make up air supply system installed...

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

Would you recommend Legalett over water radiant floor heat for a backyard studio in Toronto?

...air-heated floor, below is a link to an installation video as well as a few other resources on slabs. Legalett Solar Air Heated Slab on Grade installation v...

Posted by Christine Pountney May 2, 2019, 1:22 p.m. Delivery: radiant, forced-air and decentralized 1 Responses

Can you provide Crawlspace Insulation Design Assistance?

...air. Humid air not feels cooler, but heating humid air requires more energy than heating dry air. So that 6-mil poly membrane is essential above all else for co...

Posted by Randy Christensen Dec. 10, 2019, 12:17 p.m. Crawl spaces 1 Responses

What is the best way to do wall construction using Charred Cedar Siding?

...Make sure water can drain out the bottom, and allow air to flow freely up from the bottom and out the top. Here is a page that will help you design it on How to...

Posted by Dobie Cheung June 6, 2020, 10:44 p.m. Exterior cladding 1 Responses

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

...up through the centre is troubling. I am fairly confident the air barrier continuity can be maintained but when the stove is not in use it would represent a sig...

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

What is the best way to make a row house in Montreal Quebec more energy efficient?

...upstairs check on loft insulation as this is a relatively affordable upgrade with tangible benefits and ROI - I noticed ecoHOME has lots of info on insulation a...

Posted by Elizabeth Brown Feb. 26, 2019, 9:09 p.m. Wall assemblies - renovation 3 Responses

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

...air-sealing of the envelope – Absolutely, make a home as well-sealed as you can and let your ventilation equipment do their job. A poor air barrier and lots of ...

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

How do you add an Air Exchanger to a house with Hot Water Heat?

...air exchanger 2. Provide A/C 3. Add a make-up air 4. Add humidity. It seems I am going to end up with a lot of individual systems whereas if I used forces air a...

Posted by Bob Engelhart June 17, 2020, 10:08 a.m. Ventilation 3 Responses