XPS foam / Guides

Installing foam panel insulation, which is best?
Insulation and soundproofing

Rigid insulation panels: which ones to use for different applications

...foam panels was compared to the same assembly using 2" of EPS foam and was found to be losing 30% more heat in this study (see below)! XPS - Extruded Polystyrene Foam Panels - The blue, pink or green ones (eg. Styrofoam): XPS is Rated at R5 per inch, but it will off-gas and lose some insulation performance over tim...

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

...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 foam b...

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...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

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

...foam insulation needs to "come out of the shadows" of being lumped in with Styrofoam as it makes absolutely the best sense per $ and environmentally for continuous and resistant insulation in buildings. Extruded Polystyrene Foam (XPS) Extruded rigid foam boards most often Styrofoam Recycled content : Mi...

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

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

...Foam must be covered by drywall for fire protection. Don't install an additional vapour barrier behind drywall ; latex paint will act in this capacity. Spray foam or SPUF being installed correctly on basement walls © Bala Structures There have been a few nightmare cases reported where a SPUF installation we...

Insulating crawlspaces as part of home renovation
Crawl spaces

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

...foam boards directly to the concrete using either strapping and tap con screws, or an appropriate adhesive that is suitable for foam boards (it should say so on the tube). EPS can be substituted with XPS foam, but given its much higher greenhouse gas emissions, we prefer to recommend EPS. XPS qualifies as a vapour barr...

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

...foam if you choose (spray foam is our least favorite but it can be done so we mention it, though we always encourage readers to choose spray foam with the safest blowing agents ) Larsen truss walls can be made in a variety of thicknesses, which is a really nice advantage to the design as it can be done in a way that ...

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

Basement renovations: How to prevent mold when finishing basements

...Foam must be covered by drywall for fire protection. Don't install an additional vapour barrier behind drywall ; latex paint will act in this capacity. Spray foam or SPUF being installed correctly on basement walls © Bala Structures There have been a few nightmare cases reported where a SPUF installation we...

Recycled building materials
Recycled and Reclaimed Materials

Where to buy and sell used building materials

...foam insulation boards © Michel Chenier As an example, the above stack of XPS foam insulation was purchased through an online classified website for $3 a sheet, whereas purchased new in a building supply store they would retail for about $40 a sheet. It doesn’t take a calculator to know that that’s a pretty...

Fire retardants in furniture are intended to slow flames
Interior design and furnishing

Flame retardants in furnishings - an unnecessary and serious health risk

...foam industry. Beyond just couches, chairs, mattresses and pillows, we build our homes with it. EPS and XPS foam are two of the most common insulation materials in the residential housing industry, and they are full of fire retardants, even in applications where there is simply no way they will combust, such as when us...

The Top Twelve Green Building Trends for 2020
Planning and Design

Find out what's trending in 2020 for Green Home Construction

...foam and XPS foam with lower emission blowing agents Styrofoam board insulation and spray foam insulation have always had a bad rap in the green home construction industry, and not without good reason , but the true problem is not what most people think. A brief pause here while I slip on the Kevlar vest I wear when ...