EPS foam / Guides

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

Rigid insulation panels: which ones to use for different applications

...EPS - Expanded Polystyrene Foam Insulation Boards: Rated at R4 per inch; EPS foam insulation boards are more permeable to air and moisture than XPS, but it doesn't retain moisture to the same extent because of it's more closed cell structure and it's breathability which lets it dry out. Two inches of EPS foam board h...

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?

...EPS foam insulation or ‘Styrofoam insulation’ as it is often mistakenly called, which it isn’t. It may seem like splitting hairs, but Styrofoam is a brand name of XPS insulation, it is not EPS insulation, and environmentally speaking they're very different - read more here. A good part of the reason why EPS foam insu...

How to Fasten Cement Board Facing to slab on grade insulation
Slab on Grade

Finishing the exterior of an insulated slab-on-grade floor

...EPS foam and can be parged. Having used rigid Rockwool panels meant we needed an additional solid exterior surface. Here we installed an exterior cement board , though that left the challenge of how to attach it without using metal fasteners that would lead to thermal bridging. What we decided on was plastic straps t...

Roxul mineral wool batt insulation in LEED Homes
Insulation and soundproofing

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

...EPS claim both products can be recycled, but a complete life cycle analysis shows EPS having a better overall environmental impact when compared to XPS, as EPS can be recycled in many more ways at the end of its usefulness. Read more about rigid foam insulation panel choices here. Expanded polystyrene foam (EPS) ...

Insulating crawlspaces as part of home renovation
Crawl spaces

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

...EPS 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 ...

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?

...foam recyclable? Currently, not really no. I’m sure someone somewhere has come up with a creative use for old bits of spray foam, but for the most part it will be heading to a landfill at the end of its life. Wood studs are recyclable, plywood is recyclable, rigid foam insulation boards like EPS are recyclable and ev...

How to Build With Less Wood for Best Performance
Wood and organic materials

How to build high performance homes with less lumber

...EPS foam attached . This was something of an easy ad-on to meet the thermal requirements using a bit of foam, but there are durability concerns. Exterior sheathing insulated with foam can trap moisture in walls. Foam is at least a vapor ‘retarder’ (which slows the migration or moisture) or sometimes a vapor ‘ba...

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" or foam insulation (ThermalWall PH is made with EPS / Expanded polystyrene) can upset the sensibilities of hard-core environmentalists, but it is worth keeping in mind that EPS insulation panels are mostly made of air, it is recyclable, the plastic content is a petroleum byproduct rather than primary material and...

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

Basement renovations: How to prevent mold when finishing basements

...EPS, XPS and mineral wool are unharmed by moisture, and perhaps most importantly, EPS and XPS are unlikely to provide a breeding ground for mold. To see a showcase demonstrating the use of EPS direct onto a concrete basement wall see here . A polyethelene barrier can be included without causing harm (as seen below), ...

How to insulate basements properly
Insulation and soundproofing

Best practices for basement insulation in new home construction

...EPS foam (expanded polystyrene). 3" is better, 2" will suffice - not to be confused with styrofoam drainage mat damp proofing spray on exterior concrete wall 2" mineral wool board or EPS against interior concrete wall 2x4 stud wall with mineral wool batts in cavities drywall with latex paint as vapour retarde...

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...