Spray foam / Guides

Spray Foam Insulation - Is it Good or Toxic & Dangerous?
Insulation and soundproofing

Is spray foam insulation a good choice for your home? Or a toxic recipe for disaster?

...spray foam insulation. Why is that? Well, it works - at least in some ways. Spray foam manufacturers’ marketing departments have worked very hard to distract us from the potentially sketchier aspects of spray foam. This has been quite successful, as it has become a very popular insulation choice for renovation projec...

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 ...

Insulating crawlspaces as part of home renovation
Crawl spaces

How to insulate crawlspaces properly as part of renovating an older home

...spray foam due to the emissions associated with it (with exceptions for eco-friendly spray foams) but this is one place where it can make a lot of sense. Spray foam is done quickly, it has a high R-value, provides an air and moisture seal and fills all the tiny holes. This is not a DIY job so it will be among the mor...

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 may be the only solution. We've generally steered our readers way from spray foam products in the past due in part to health concerns, but mostly to the very high Green House Gas emmissions from spray foam blowing agents. However 2020 has seen great news about the reduced global warming impact of spray f...

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

What causes ice dams and how to fix them

...spray foam is closer to R6 per inch. The high ecological cost that comes with spray foam stops us from recommending it except for very urgent circumstances and this can be such a case. For existing homes with limited space over the top of walls, replacing a lower-R value per inch with a higher-value insulation like s...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

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

...Spray Polyurethane Foam) Spray foam on basement walls © Bala structures U pdate: new blowing agents for spray foam dramatically reduce their environmental impact. Read more. Recycled Content : Minimal at best. Some are advertised as ‘soy based’ but there is so little soy content compared to the ecological imp...

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

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

...Spray polyurethane foam (SPUF): When SPUF works out, it can be one of the better performing products in basement applications. Being sprayed directly onto concrete walls, it ensures an even and total protection. SPUF has a high R value per inch, acts as an air barrier and a vapour barrier. However, it has been known ...

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...

Basement Design for walls prevents mold & midlew when renovating & finishing
Healthy indoor air quality

Basement renovations: How to prevent mold when finishing basements

...Spray polyurethane foam (SPUF): When SPUF works out, it can be one of the better performing products in basement applications. Being sprayed directly onto concrete walls, it ensures an even and total protection. SPUF has a high R value per inch, acts as an air barrier and a vapour barrier. However, it has been known ...

Is EPS foam eco-friendly? Exterior home insulation rigid foam panels
Insulation and soundproofing

Does plastic foam or Styrofoam insulation have a place in green building?

...foam products on the market, when in reality it isn’t actually as bad as people think. They are easily distinguishable from each other, see below: EPS - Expanded Polystyrene rigid foam insulation, aka 'beadboard foam insulation'. this is NOT 'Styrofoam'. XPS Extruded Polystyrene rigid foam insulation - this...

Waste management

How to dispose of Construction waste responsibly

...spray foam. Using or disposing of old building materials: Re-using or repurposing building materials, where it makes sense. Use old boards as strapping as long as there are enough, that they are of good quality, and they are consistent and of a suitable dimension. Clean framing lumber in good conditio...