Water efficiency / Discussions

What is the best insulation Under 2" Cement flat Roof in NYC?

...efficiency and water leaks? Maybe 2 layers? The base for the roof will be Metal beams. Thanks, Rafael, Brooklyn We would propose you use a rigid board insulat...

Posted by Rafael Mor March 29, 2019, 5:19 a.m. Roof assemblies - new construction 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

How do you do insulation the outside of a log home?

...water heating. I want to increase the efficiency of the house by insulating the outside. What I have in mind is vertical 2x4 strapping, 3 1/2" Roxul insulation,...

Posted by Michael Hickey Aug. 2, 2018, 6:03 p.m. Wall assemblies - renovation 1 Responses

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

...water heater. Here are our pages about home water efficiency , choosing low-flow fixtures and toilets , water-efficient showerheads and heat pump water heater...

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

Can I see details about the heating and domestic hot water systems of the Edelweiss house?

...water is a heat pump as well, we used an AO Smith air-to-water hybrid heat pump . The water heater sucks in the air from the home (which with the heat pump is g...

Posted by August Wehrmann March 10, 2019, 9:26 a.m. Heat pumps, geothermal and AC 1 Responses

How do you rebuild an existing basement?

...efficiency and durability standpoint, this following page will help - How to build a basement properly for energy efficiency and to prevent mold

Posted by Lisa Tuck April 14, 2020, 11:34 p.m. Basements improvements 1 Responses

What is the Kenogami House heating system?

...water in the radiant tubing to help balance the excess heating. My understanding was that the unheated water in the tubing would absorb excess heat from the are...

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

How does a Passive House handle floods?

How would a “passive” or airtight house fare in a flood incident, either from inside (burst water tank) or from outside (like New Brunswick’s spring floods)? ...

Posted by Wendy Tsao May 7, 2018, 12:46 p.m. Foundations and Basements 1 Responses

What is the best insulation for a small energy neutral home project?

...water for water. I want the house to be as well insulated as possible so I have to generate less electricity, so I'm wondering what sort of insulation to use an...

Posted by Dan Gull Nov. 11, 2019, 6:40 a.m. Off-grid and Net-Zero Housing 3 Responses

What is the best way to frame window openings when adding exterior insulation?

...efficiency and durability is a lot about stopping air leaks and preventing water leaks. That means air seals around the exterior of windows and sloping window s...

Posted by Anwas Qwelten May 30, 2019, 8:16 p.m. Windows and doors 1 Responses

How do I stop a leak from my attic?

I'm getting water dripping down the inside walls of two opposite exterior walls. I checked the attic and found 1) frost of the underside of the roofing plywood...

Posted by Markus Duess Feb. 11, 2019, 12:42 a.m. Roof assemblies - renovation 1 Responses

How do you know when its time to replace windows?

...water damage, remove and replace the insulation, and make sure it is well-sealed against air leakage at that point. Some people use spray foam for air sealing...

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

What is your opinion about building a garage on posts (screw piles)?

...efficiency and comfort as a slab-on-grade. It will also be more subject to air leakage, so be sure to incorporate an effective air barrier into the design. Gi...

Posted by Les P Dec. 11, 2017, 2:21 p.m. Foundations and Basements 1 Responses

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

...water damage, etc.), it’s impossible to say for sure, sorry. Without doing a full demolition of your laundry room, can you access the rim joists? That is a co...

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

Should I replace my geothermal system with a gas boiler?

...water is leaking into the refrigerant that is a pretty significant and costly failure, if refrigerant is leaking into water than is less serious and can probabl...

Posted by Lawrence Brusnyk Oct. 31, 2018, 8:07 p.m. Heat pumps, geothermal and AC 1 Responses

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

...water temperatures, decreasing energy use (and energy bills)” Nope. And this is the part where I become suspicious, when they make claims that just don't line...

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

What is the best type of heating system?

...water heater, lighting, heating) comes to just over $500 per year. Read more about the LEED Platinum Edelweiss house heating and electrical systems here . If ...

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?

...water to drain out. To now address the fluid ground loop portion of your question: This involves running a ¾ pex loop through the ground (with a glycol mix ...

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