LEED v4 / Discussions

Drain Maintenance - LEED Accreditation & Points System, how do I gets points?

...LEED score?

Posted by Bryan Williams May 20, 2020, 3:16 p.m. LEED Homes 0 Responses

How hard is it to build a LEED Platinum House?

...LEED AP (Accredited Professional), or even having a LEED AP on your design team. You could receive a point towards certification by having an AP on your design ...

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

Lunos HRV - where can I buy them and get advice?

...LEED V4 Platinum demo house build a few years ago.

Posted by martin tierney Nov. 16, 2019, 4:57 p.m. HRV and ERV 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

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

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

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 is the best heat pump hot water heater for an all electric house?

...LEED V4 Platimum in a demonstration home – Air to air heat pump and heat pump water heater working in tandem As for tankless heaters, they can sometimes be ...

Posted by Babak K Aug. 1, 2020, 7:07 p.m. Heat pumps, geothermal and AC 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 4 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

Should a Vapor Barrier be installed over Exterior Grade Plywood?

...LEED v4 wall design made easy - Video The problem with air conditioning and interior vapor barriers like you would need in the Kawartha’s (Ontario), can be al...

Posted by Michael Klauck March 6, 2020, 1:24 p.m. Air and vapour barriers 1 Responses

Is hydronic slab heat appropriate in a super insulated home?

...LEED V4 in Canada and it also met Passive House performance requirements even though it we didn’t seek certification. We used the house as a teaching venue and ...

Posted by Andrew Wright Feb. 3, 2021, 3:26 p.m. Delivery: radiant, forced-air and decentralized 1 Responses