Spray insulation / Guides

4th generation blowing agents for spray foam
Insulation and soundproofing

New HFO blowing agents for spray foam will make it over 1,000 times less harmful to the climate

...spray foam has an R-value of 6.3 per inch; when used at an 8-inch thickness, the foam has an R-7.4 value per inch, which exceeds the performance of any foam insulation currently on the market. The installation of spray foam requires the mixing of chemicals on site, and that reaction generates a lot of heat. So spray ...

How to Insulate Exterior Walls from the Outside US Canada Ecohome
Walls and Roofs

The easiest way to insulate walls from the exterior in older homes

...insulation A Larsen truss wall is one with engineered I-joists attached to the outside of a stud or brick wall, which then creates a cavity that can be filled with additional insulation . You can add batt insulation, dense pack cellulose, rigid insulation panels or spray foam if you choose (spray foam is our least fa...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

Choosing the right insulation: the pros, cons and applications for walls, slabs & basements

...insulation panel that one day we hope will replace plastics based foam as a standard building insulation. And better still is when the natural alternative for these plastic based rigid foam insulation boards is a naturally derived cellulose high-performance panel with a higher R-value than current rigid insulation pane...

Frost in Attics: What causes Attic Ice? How to Fix it?
Roof assemblies - renovation

Why is there frost in my attic? Is ice in roofs a problem & How do I stop it?

...spray foam will also work to seal air leaks and add insulation. In the unfortunate situation of having no air barrier but a truss system that makes a poly air barrier impossible to install from above, spray foam may be the only solution. We've generally steered our readers way from spray foam products in the past due...

Better Basement Design on basement walls prevents mold and midlew
Healthy indoor air quality

Basement renovations: How to prevent mold when finishing basements

...insulation in basements (If you must), and be sure they won't see prolonged exposure to moisture or contact with humid surfaces if you don't want them to go moldy. Spray polyurethane foam (SPUF): When SPUF works out, it can be one of the better performing products in basement applications. Being sprayed directly on...

Exterior damp proofing and drainage mat to protect basements from wate
Insulation and soundproofing

Best practices for basement insulation in new home construction

...insulation techniques listed here are designed to offer the most sensible and durable options for interior insulation, exterior insulation, or ideally, a combination of both. These assemblies have been designed to prevent moisture infiltration over the service life of a building, along with allowing the original mois...

Ice dams on roofs & how to fix them
Roof assemblies - renovation

What causes ice dams and how to fix them

...insulation. Wires to melt ice dams are a solution, but hardly an energy efficient one, make this a last resort! Fibrous insulation like cellulose and fiberglass insulation range around R3-4 per inch where spray foam is closer to R6 per inch. The high ecological cost that comes with spray foam stops us from re...

Finished basements can lead to mold and mildew
Healthy indoor air quality

Why are basements moldy? How to fix or Prevent a Moldy Basement

...insulation means the temperature of the concrete will be determined by the temperature of the ground or air outside. With some types of insulation this can allow warm, moist air to condense on the cold concrete. Having no insulation at all does not eliminate these issues; you are also at risk, just not to the same ex...

Natural Building Insulation Made of Grass - Eco-friendly, Green
Insulation and soundproofing

Non-toxic natural building insulation made of grass

...insulation materials can, in some instances, be at a greater risk of developing mold, or perhaps hosting insects and rodents , compared to non-organic products such as rigid foam insulation boards, Rockwool or spray foam insulation to name a few examples. Some natural insulations are better suited to slip into the mo...

Tiny House living in cold climates - one of the best tiny homes on wheels
Tiny house

Tiny Houses - Living in Cold Climates

...spray polyethylene foam since it has a higher R value per inch, and while spray foam works well, the problem is that most brands of spray foam insulation have high greenhouse gas emissions. Read here about how to find more environmentally-friendly spray foam with lower emissions . A tiny home built on a slab on grade...

Correctly installed Triple pane south facing windows on Ecohome's Demo House
Windows and doors

Installing doors & windows for the best performance in high efficiency homes, LEED & Passive House

...insulation (Roxul Comfortboard) makes leveling and placing windows quite easy. It is somewhat compressible and it holds its R value when compressed, and it isn't harmed by moisture the way fiberglass insulation can be. Create a durable air seal: low-expanding spray foam is commonly used around windows, which works fi...