Energy efficiency / Discussions

How do you know when its time to replace windows?

...energy will you save with new windows compared to your existing ones. Except with very old and badly damaged windows on a house that is otherwise in very good...

Posted by Ted Dec. 11, 2017, 12:50 p.m. Windows and doors 1 Responses

What do I in my basement where new insulation meets old?

I’m insulating my basement with 2” of EPS against poured concrete foundation, then framing a 2x4 wall, then adding Rockwool. Unfortunately, due to some areas, ...

Posted by Steve J July 20, 2019, 10:01 p.m. Basements improvements 2 Responses

Can I add Larsen Trusses and cellulose to 1920s House in Minneapolis?

...energy-efficiency you need to be careful not to trap moisture inside walls. What you read about installing a poly vapor barrier on the outside of a building is ...

Posted by Ken Traefald Feb. 17, 2020, 2:30 p.m. Wall assemblies - renovation 1 Responses

How you vent a metal roof?

...energy efficiency - to think of it in its true essence, it is the defining point of the worst performing house that you are legally allowed to build. Here is a ...

Posted by Kim jarrett July 12, 2019, 12:15 p.m. Roof coverings 3 Responses

What should I be looking for in a heat recovery ventilator?

...efficiency Warranty Calculating the fresh air requirements of a home as well as proper placement of ducts are not easy calculations to make, so this is be...

Posted by Adam Y. Dec. 11, 2017, 1:07 p.m. HRV and ERV 1 Responses

What would you say is the most comfortable heating system for a home?

...energy retrofit? For perspective – A well-insulated home with good quality windows will be more comfortable, even when you aren’t close to the heat source. If y...

Posted by Anonymous Dec. 11, 2017, 11:25 a.m. Heating with electricity 1 Responses

Spray Foam for basements, which of the different types are best environmentally?

...energy-efficiency by reducing heat loss, as it has one of the highest per-inch r values of commercially available insulation products. There are also some sig...

Posted by Rose Adams Jan. 9, 2020, 9:33 a.m. Insulation and soundproofing 1 Responses

What is the best type of heating system?

...energy options. We have an Energy Advisor helping us. Initially, we considered in-floor heating in the basement and pellet stove on the main floor. The house is...

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

How do you install a ground loop for an HRV?

...energy savings. Especially as a house is often empty during the day when the greatest Solar energy gain is available to the SHWH. Is this theory correct or am...

Posted by Lee Watt July 10, 2018, 12:43 a.m. HRV and ERV 1 Responses

Should I install two small electric hot water heaters - ones or big one?

...energy loss and wasted water in not having to feed hot water from a long distance. The upfront cost of heat pump water heaters would be quite a burden, so I w...

Posted by Shaun B June 28, 2019, 2:14 p.m. Hot water 1 Responses

What are the most cost-effective green building strategies in new home construction?

...energy efficiency and durability Efficient lighting – You will probably have a lot of natural light based on your passive solar orientation, but still choose ...

Posted by M T Nov. 4, 2019, 11:07 a.m. Concept and design 2 Responses

Can I use an old patio door thermal pane as the cover for a solar air heater?

...efficiency. You may have seen them already, but below are a few pages on solar air heaters that may be of value to you. good luck, and feel free to send us pics...

Posted by Fred Miller May 20, 2019, 11:44 a.m. Solar thermal collectors 1 Responses

Should I replace my skylights with solar tubes?

...energy wise -if I were starting a new build, that's what I would choose. But do you think that I should close in my skylights and replace them with tubes? Or ar...

Posted by Elizabeth Brown Nov. 30, 2018, 9:32 p.m. Windows and doors 1 Responses

What is the best way to make a row house in Montreal Quebec more energy efficient?

...efficiency and cost efficiency and eco-friedliness. What would ecohome do?! What you are describing is pretty much exactly my house in Montreal be...

Posted by Elizabeth Brown Feb. 26, 2019, 9:09 p.m. Wall assemblies - renovation 3 Responses

Can you provide Crawlspace Insulation Design Assistance?

...energy than heating dry air. So that 6-mil poly membrane is essential above all else for comfort, durability, energy efficiency, and air quality. You mention ...

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

How to insulate an apartment you don't own?

...energy efficiency may be of value. Let us know if this helps, and feel free to write back with more details and we are happy to help you stay warmer this winter...

Posted by Teresa Cunningham Oct. 21, 2019, 3 p.m. Wall assemblies - renovation 1 Responses

Will I save energy by lowering my thermostat at night?

...energy it will use. Heat loss increases with a greater differential in temperature, so the warmer it is inside compared to outside the greater your heat loss wi...

Posted by Ryan Peterson May 1, 2018, 11:51 a.m. Heating and cooling 4 Responses

What is the best option for building our next resilient home?

...energy efficiency, durability, safe indoor air quality and responsible material choices etc. All that would apply still in our minds when a house will be left t...

Posted by John Bae Aug. 27, 2019, 3:55 p.m. Efficient home design 1 Responses