Edelweiss / Discussions

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

I saw the article on the CaGBC site regarding the Edelweiss house where it indicated "a hydronic radiant floor and an air source heat pump". Can you post more ...

Posted by August Wehrmann March 10, 2019, 9:26 a.m. Heat pumps, geothermal and AC 1 Responses

In your Edelweiss house you use 2x6 studs. Why not use 2x4 studs and add 2" rigid on the inside?

...Edelweiss house are fully filled with 2x6s, and would have been much thicker if the structure were made out of 2x4s. Designs with higher levels of glazings are ...

Posted by Tom Wagar Aug. 25, 2019, 3:40 p.m. Wall assemblies - new construction 1 Responses

|s there thermal bridging in the Edelweiss REMOTE wall?

...Edelweiss home, it is said that two layers of strapping prevent thermal bridging. Albeit, the screws from the second layer of strapping do not go directly into ...

Posted by David Pantalone Feb. 9, 2020, 4:42 p.m. Wall assemblies - new construction 1 Responses

Looking to build a small home as eco as possible, where do we start?

We are looking to build an approximately 30x30 small 2 story single pitch home, with a budget of approx $200,000 in Edelweiss, QC - where do we start? We are...

Posted by Jenn Bisson July 12, 2019, 12:12 p.m. Planning and Design 2 Responses

Are there any updates on the progress of the second demonstration house?

I am most curious about the effectiveness of the air tube floor heating system. The house is still under construction and not expected to be finished for a cou...

Posted by dean c April 30, 2019, 7:58 p.m. Solar thermal collectors 2 Responses

Can you do an update on Ecohome’s new demo house?

Legalett's air heated radiant floor system uses a sealed, closed-loop system, in part, to control moisture in the tubing and therefore mold growth. In Ecohome’...

Posted by dean c Oct. 16, 2019, 2:04 a.m. Concept and design 1 Responses

What is the best type of heating system?

...Edelweiss house heating and electrical systems here . If it were me, I would only do radiant heating on floors I occupy as living space, and only on floors th...

Posted by Jennifer Doll Jan. 20, 2020, 11:59 p.m. Heating and cooling 3 Responses

How do you seal windows from the exterior for water and air but not create a vapor seal?

...Edelweiss House videos. If you did then you know we tried two approaches, backer rod and caulking as well as taping the window to the rough opening, on the inte...

Posted by Piyush Prince Nov. 7, 2018, 12:10 a.m. Windows and doors 1 Responses

What is the right amount of insulation for a house?

...Edelweiss Demonstration house that covers the basic principles of passive heating and cooling concept and design. Hi, thanks for the response. I've spoken to Su...

Posted by Ryan Gerbrandt Feb. 11, 2019, 9:57 a.m. Passive solar home design 4 Responses

Can hydronic radiant heating be a complete heating solution for a home?

...Edelweiss House (not to mention passive heating), and while some may think it to be overkill, we like the idea of a backup heat source. We use the radiant flo...

Posted by Jeremy Peters Dec. 16, 2019, 1:13 a.m. Delivery: radiant, forced-air and decentralized 3 Responses

Do I need ceiling fans if I have an HRV?

...Edelweiss demonstration house .

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

If a passive house is designed well is it worth the extra cost for Low E window coatings?

...Edelweiss House where we employed a very comprehensive passive heating and cooling strategy in our and we had different coatings on the north windows compared t...

Posted by Joe Van Kuren June 7, 2019, 8:37 p.m. Passive solar home design 1 Responses

Can you elevate a slab on grade foundation?

...Edelweiss House . This page has a video about how to build passive solar homes , where you can see how we raised the level of the slab with clean compactible fi...

Posted by Raoul Lions July 27, 2019, 2:47 p.m. Slab on Grade 1 Responses

Air source heat pumps: Which brand has the best performance?

...Edelweiss House ) we used the Mitsubishi Mr. Slim Mini-split heat pump as seen in the video on that link above, and we were really happy with it. That one is no...

Posted by Mike Brigham Jan. 22, 2020, 9:25 a.m. Heat pumps, geothermal and AC 1 Responses

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

...Edelweiss House, we had an entirely separate air barrier in that wall assembly, a peel and stick membrane on the exterior sheathing (seen below). The co...

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

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

...Edelweiss Demonstration house we installed a 10-mil underslab vapor barrier from WR Meadows, we found it to be extremely puncture resistant and our final radon ...

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

Does using T & G wood plank instead of drywall affect where we put the vapor & air barrier?

...Edelweiss Demo House we used vapour barrier paint on the walls but we used poly on the ceiling. As for your building inspector, that could go either way, so if ...

Posted by Sue Colbourne Nov. 9, 2019, 6:16 p.m. Walls and ceilings - interior surfaces 3 Responses

Is the ZIP sheathing system good or bad for water control?

...Edelweiss demo house. I am an architectural technologist at a commercial firm in Calgary and we only do exterior insulation with a combined air/vapour barrier o...

Posted by Trevor Prinz Nov. 26, 2019, 4:03 p.m. Walls and Roofs 4 Responses