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

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 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

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

...LEED or Passive House high-efficiency zero net energy homes - video In our 2015 demo house build ( the LEED V4 Platinum Edelweiss House ) we used the Mitsubis...

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

What is the best type of heating system?

...LEED Platinum 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 onl...

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

What is safer than OSB for someone with multiple chemical sensitivities?

...LEED Platinum, and has extremely safe air quality. All the interior finishing (walls and trim) were done with a formaldehyde-free UV treated non-toxic plywood ,...

Posted by Ian Smith April 27, 2020, 1:01 p.m. Healthy indoor air quality 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

Do we have the option to build to meet the reqs. of the Living Building Challenge?

...LEED Platinum demonstration homes, but we have yet to take the Living Building Challenge. We would be quite happy to work with you to meet those objectives, tha...

Posted by Lydia Singh Jan. 8, 2020, 1:30 a.m. Green building certifications 5 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

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

What options are there for pre fab Passive House kit designs?

...LEED and Passive House ready prefab kit house s, these are available in your area. The LEED Platinum Kenogami house is an exceptional build and was our first ...

Posted by Kim MacKay Dec. 27, 2019, 3:12 p.m. Planning and Design 1 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

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

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

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

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

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

...Leed Platinum Edelweiss House in that video actually gets most of its cooling from a heat pump water heater . It also has a ductless mini-split heat pump that o...

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