I'm looking to build a small single level passive solar orientated house with double walls or Larson truss (either would have dense pack cellulose) on a slab foundation with radiant in floor heat. I saw a post with a chart showing code built, better insulated and super insulated. The chart showed monthly payments (mortgage and untilities) and the better insulated home had monthly savings over the code built house while the super insulated house cost more per month due to the added up front building cost. I'd like to aim for the better built house with instant payback but how do I determine how much insualtion to use? EPS under slab and on side, dense pack cellulose in walls and loose pack cellulose in ceiling. Thanks.
Is a vapor barrier necessary under a concrete slab with foam insulation and if so, where does the plastic vapor barrier go??
Posted by Les Poldark Aug. 17, 2019, 12:19 p.m. Air and vapour barriers 3 Responses
Replacement windows in a double wall envelope house
Posted by Anonymous Anonymous June 25, 2018, 10:25 p.m. Windows and doors 3 Responses
Could solar thermal air system be coupled to existing HRV for heating the incoming fresh air?
Posted by Brian Billings March 21, 2019, 2:53 p.m. Solar thermal collectors 1 Responses
If a passive house is designed well is it worth the extra cost for Low E (High solar gain) coatings?
Posted by Joe Van Kuren June 7, 2019, 8:37 p.m. Passive solar home design 1 Responses
Starting from scratch in a Victorian row house: how should I heat/cool my home?
Posted by Elizabeth Brown Feb. 26, 2019, 9:09 p.m. Wall assemblies - renovation 3 Responses
What is the best way to insulate a home from the outside?
Posted by Anonymous Dec. 12, 2017, 11:58 a.m. Wall assemblies - renovation 1 Responses
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Posted by Michelle Nason Aug. 8, 2018, 1:48 p.m. Off-grid and Net-Zero Housing 1 Responses
In solar passive design, is it possible to calculate how far back into the home the winter sun will penetrate ?
Posted by Daniel Gardener Sept. 12, 2019, 8:54 a.m. 1 Responses
Current info and references for Legalett Air Heated Shallow Foundation system
Posted by Steve Sykes Aug. 18, 2019, 3:21 p.m. Slab on Grade 1 Responses
Electric Hot Water Heaters - should I install two smaller ones or big one?
Posted by Shaun B June 28, 2019, 2:14 p.m. Hot water 1 Responses
What should I look for if I want to buy a slab on grade house?
Posted by terry northcott March 25, 2019, 11:02 a.m. Slab on Grade 1 Responses
I want to insulate the outside of my house and I'd like to know which type of insulation you think is best.
Posted by Anonymous Nov. 15, 2017, 10:34 a.m. Wall assemblies - renovation 7 Responses
Is it normal that condensation forms on the windows of my new home?
Posted by Anonymous April 19, 2017, 10:30 a.m. Ventilation 1 Responses
What type of wood can be installed on a radiant floor?
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How do I find a green builder in my region?
Posted by Marie Isakower July 26, 2018, 8:12 a.m. How to Find Qualified Green Building Professionals 3 Responses
What is the best type of radiant floor heating for a garage?
Posted by Anonymous March 24, 2017, 11:14 a.m. Delivery: radiant, forced-air and decentralized 1 Responses
How to seal windows from exterior for water and air seal but not vapour seal?
Posted by Piyush Prince Nov. 7, 2018, 12:10 a.m. Windows and doors 1 Responses
Would you recommend Legalett over water or gel radiant floor heat for a backyard studio in Toronto?
Posted by Christine Pountney May 2, 2019, 1:22 p.m. Delivery: radiant, forced-air and decentralized 1 Responses
Post-flood basement renovation: interior finishing
Posted by Wren Toombs June 18, 2018, 10:52 a.m. Foundation and basement improvements 1 Responses