Is / Discussions

Which house wrap is best?

...is best, perforated or non perforated (like Tyvek). Thank you Every exterior weather barrier house wrap like Tyvek is intended to be breathable and let moisture...

Posted by Kathy Moller Aug. 2, 2020, 11:50 a.m. Air and vapour barriers 1 Responses

Is Condensation on Windows a bad sign?

...ised that it is worse in the bathroom, that’s where the most moisture is. But running all the way down the wall to create a puddle on the floor is quite a lot. ...

Posted by Greg Olmstead Dec. 12, 2019, 6:21 a.m. Walls and Roofs 1 Responses

I live in Puerto Rico. Is there any prefab that will withstand hurricane??

...is sold here? None of our current prefab Kit houses can withstand hurricanes , but we are in discussion with additional manufacturers to increase our supply , h...

Posted by Laura Prado Sept. 15, 2020, 5:58 a.m. Architecture and plan design 1 Responses

What is the best ERV on the market ?

...is so beneficial if I choose the ZEHNDER vs. Broan? This is a new construction build that will be energy star certified. Choosing the best air exchanger for a...

Posted by Brandon Phelps April 18, 2020, 12:09 p.m. HRV and ERV 1 Responses

What is the best type of home heating system?

...ish Columbia electric is your best choice in our opinion, see here the advantages of heating with electricity. Over 90% of energy in British Columbia comes fr...

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

Is there thermal bridging in the Edelweiss REMOTE wall?

...is itself directly screwed into the studs. So there is still some thermal bridging. Did the software analysis however prove that this indirect degree of thermal...

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

What is the best way to insulate my basement?

...isting fiberglass batt insulation back in the cavities over the foam? 3. Leave it as is and insulate the new wall that will be framed in front of existing wal...

Posted by Chris Rogers Oct. 27, 2019, 11:23 a.m. Foundation and basement improvements 1 Responses

What is the best way to insulate a 2x8 wall?

...is very permeable to moisture so while it isn’t the cheapest, it is the most foolproof as it won’t ever trap moisture like some foam insulation can. Spray foa...

Posted by Michael Sweglar July 8, 2020, 10:43 a.m. Wall assemblies - new construction 3 Responses

What is the best brand for ductless mini-split HVAC system?

...Is this a good idea? 2) what is the best brand for ductless mini-split? I heard good reviews for Mitsubishi Electric and Fujitsu. Any recommendations? Our recom...

Posted by Babak K July 12, 2020, 11:22 p.m. Heating and cooling 2 Responses

Is sealing basement concrete floor against radon a good idea?

...is nice pristine unfinished concrete floor and walls. I have heard of a product called radon block, I believe this is a sealer of some kind. Just wondering ...

Posted by Tim Hanrahan Sept. 18, 2020, 3:11 a.m. Radon in Homes - Mitigation 3 Responses

What is the Kenogami House heating system?

...is already, but here is a page on phase change building materials , I still think there is tremendous potential for material phase changes to be used for energy...

Posted by dean c March 22, 2019, 3:46 p.m. Passive solar home design 1 Responses

Is it normal that condensation forms on the windows of my new home?

...is likely part of the problem, as moisture you generate in the home (through washing, cooking and bathing) increases the overall level of humidity. New building...

Posted by Kevin Newman April 19, 2017, 10:30 a.m. Windows and doors 1 Responses

What is the perfect wall assembly?

...is the same with what we did at the Edelweiss House, which is a seamless layer of exterior insulation with no screws that pass through the entire assembly to ac...

Posted by Paul Drouin Sept. 17, 2020, 6:29 a.m. Wall assemblies - new construction 1 Responses

What is the best material for building plumbing?

...ise, which one is quieter? Water quality/freshness. Durability etc. Hi there Babak, I think the choice between a plastic material and copper is a very persona...

Posted by Babak K July 17, 2020, 1:55 a.m. Plumbing and water heaters 3 Responses

What is the best wall & insulation combination for Colorado?

...is page about insulation – What is the best insulation for a home? In there you will learn the different characteristics of various insulation materials, th...

Posted by Jacob Johannessen July 2, 2020, 11:13 a.m. Efficient home design 1 Responses

What type of framing is best to reduce CO2 emissions in a single family home?

...is the best type of framing to use in order to reduce carbon emissions/ embodied energy/ wasted material? Is traditional stick frame with dimensional lumber bet...

Posted by Rachel Rodd Sept. 28, 2020, 3:04 p.m. Wood and organic materials 1 Responses

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

...is a lot to it, and it is honestly best left to those who do energy modelling. An example to look at would be our LEED V4 platinum Edelweiss House where we empl...

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

What is the best foam board insulation under drywall?

...iso is the opposite and its R value tends to drop when it is exposed to cold temperatures, which is not a characteristic that is what you would call ‘appealing’...

Posted by Wesley Pracht Jan. 11, 2020, 8:10 p.m. Wall assemblies - renovation 1 Responses