Design / Discussions

Where would I go for guidance on structural design of footings that sit on top of high-density insulation?

I'm not concerned with the compression issue, but rather how the lateral (shear) loads get transferred from the concrete footing into the soil, via the insulat...

Posted by Douglas Bennion July 31, 2019, 4:34 p.m. Foundations and Basements 1 Responses

Do you have suggestion for non-toxic closet design company, or materials?

We are renovating a house, and moving in fairly soon. We live in Southern California, and I want to avoid toxic materials, particularly in the bedrooms. Can't ...

Posted by Nicole Lucas Haimes Oct. 11, 2019, 10:51 p.m. Materials and resources 1 Responses

What flooring options work with a passive solar design?

...design (newbies) and it appears that a concrete floor with radiant heat will help to hold heat within the house for the longest period of time. My wife is not a...

Posted by Christopher Dunn Feb. 23, 2020, 11:50 a.m. Passive solar home design 0 Responses

How do you design and build a green home on a very small budget?

...design and obtaining building plans, septic plans, permits and such, so you need to be really focused when initially designing to keep costs at a bare minimum. ...

Posted by Paul Squire Nov. 8, 2018, 8:25 p.m. Concept and design 1 Responses

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

...design considerations that will help enormously on that front, have a look at the video on the following page- How to design a home for passive heating and co...

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

Can you provide Crawlspace Insulation Design Assistance?

Be warned; this is a long post! Apologies in advance. I live in the colder climate of western Massachusetts in an 1830s vintage home. We have a 4'6" crawlspa...

Posted by Randy Christensen Dec. 10, 2019, 12:17 p.m. Crawl spaces 1 Responses

What is the most efficient passive home design?

...design – any material can be chosen, success is measured by the right amount and proper applications of insulation and a focus on airtightness. Here is an examp...

Posted by Peter Riley Jan. 29, 2020, 9:01 p.m. Passive House 1 Responses

What infloor radiant heating would you use in a corewood home design?

...designs and manufactures engineered raft slabs (frost-protected shallow foundation slab on grade) . They are available across North America. Where are you locat...

Posted by John Yoho Feb. 6, 2020, 10:59 p.m. Wall assemblies - new construction 1 Responses

Where do I start to build a small, affordable, low-maintenance house?

...designed by an engineer and build it yourself (with your army of helpers) Keep in mind, depending on site conditions an soft costs such as engineering and perm...

Posted by Ocean-Lynn Georgelin Oct. 22, 2019, 11:40 p.m. Concept and design 2 Responses

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

Assuming the windows are appropriately facing south and the entire design is sound with thermal mass and good overhangs would double or triple glaze Argon fill...

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

Do I need to insulate under the footings of a frost protected shallow foundation?

Hello, I’m designing a FPSF in Southern Vermont (AFI 2300). I want to fully insulate the radiant slab by including 4″ XPS under the footings but this seems t...

Posted by Jon Piana April 15, 2019, 8:45 a.m. Slab on Grade 1 Responses

Can a solar thermal air system be coupled to an HRV for heating incoming fresh air?

...design that could be very helpful as a "heat storage battery". I think I would set it inside a well insulated outdoor containment box. It would have heat transf...

Posted by Brian Billings March 21, 2019, 2:53 p.m. Solar thermal collectors 1 Responses

Does anyone have any experience or thoughts on a geodesic dome ecohome?

I am curious about the measurable advantages and disadvantages of geodesic dome construction for energy efficiency in a zone 3 climate. Would the advantages of...

Posted by Tyler Chidester Dec. 12, 2019, 4 a.m. Concept and design 0 Responses

What is the Kenogami House heating system?

Earlier posts regarding the Kenogami House talked about using a phase change thermal battery, to avoid overheating during sunny winter days that provided too m...

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

Was the Kenogami House Worth the Cost?

...design and extreme passive heating . The house is certified LEED Platinum but also meets Passive House l evels of performance (and then some), but it does go ...

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

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

...designs, LEED contains certain aspects of green building, with healthy materials, carbon footrprint being similar, however, LBC also places focus on Biophilic d...

Posted by Lydia Singh Jan. 8, 2020, 1:30 a.m. Green building certifications 4 Responses

What are the options for radiant heat with a slab on grade?

...design considerations of the house. Warmboard sounds like a system worth considering if you desire radiant floor heat in upper floors, as are other products, ...

Posted by August Wehrmann Feb. 3, 2019, 6:52 p.m. Delivery: radiant, forced-air and decentralized 1 Responses

What do you think of insulated T Studs in Canada?

...designs we had experimented with I-joists that we had insulated with Rockwool rigid insulation boards (photo below). They were surprisingly easy to build, we ju...

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