LEED Platinum / Discussions

How hard is it to build a LEED Platinum House?

...LEED certification Finding a provider Canada’s first LEED v4 Platinum

Posted by Sattar Alfa Aug. 31, 2018, 11:11 p.m. LEED Homes 1 Responses

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

...LEED Platinum), you could back off a bit on the insulation levels if it helped you afford a geothermal system. As for a backup heating system, a wood stove wo...

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

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

...LEED Platinum Edelweiss House heating strategy Air-source and water-source heat pumps working in tandem

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?

8" semi rigid and 5 1/2" between the studs. why not use 8" semi rigid, 3 1/2" between the studs and 2 " more semi rigid on the inside beneath the gyprock? Is t...

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

What is the best option for building our next resilient home?

...LEED V4 Platinum Edelweiss House , our LEED Platinum Kenogami House , and our newest demo house in Wakefield QC has a feature that may be of interest, we instal...

Posted by John Bae Aug. 27, 2019, 3:55 p.m. Efficient home design 1 Responses

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

...LEED V4 platinum Edelweiss House where we employed a very comprehensive passive heating and cooling strategy in our and we had different coatings on the north w...

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

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

...LEED Platinum demonstration home (the Edelweiss House) a few years ago (on a slab) and we were careful to choose healthy building materials such as zero VOC pai...

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

How much does it cost to build a house by square foot?

...LEED Platinum house we built in 2015 for under $200 a square foot. We wanted an extremely high performing house but for an average price, so we kept the design ...

Posted by Mike D Sept. 5, 2017, 4:12 p.m. Concept and design 1 Responses

What is the best way to frame window openings when adding exterior insulation?

...LEED Platinum house ), but it helped get our air leakage rate to about 0.6 ACH (here is our air barrier installation video ). As for ideal window placement wi...

Posted by Anwas Qwelten May 30, 2019, 8:16 p.m. Windows and doors 1 Responses

What do you think of insulated T Studs in Canada?

...LEED Platinum home that was donated to Habitat for Humanity , and in the process of exploring ideas for efficient home designs we had experimented with I-joists...

Posted by Lee Watt June 3, 2019, 10:57 a.m. Wall assemblies - new construction 1 Responses

Can you elevate a slab on grade foundation?

...LEED V4 Platinum 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 cle...

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

Was the Kenogami House Worth the Cost?

...LEED Platinum but also meets Passive House l evels of performance (and then some), but it does go beyond what we consider to be a resonable return on investment...

Posted by dean c March 22, 2019, 3:58 p.m. Planning and Design 1 Responses

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

...LEED V4 Platinum Edelweiss Demonstration house we installed a 10-mil underslab vapor barrier from WR Meadows, we found it to be extremely puncture resistant and...

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