EPS foam / Guides

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

Best practices for basement insulation in new home construction

...EPS (expanded polystyrene). 3" is better, 2" will suffice drainage mat damp proofing spray on exterior concrete wall 2" mineral wool board or EPS against ...

Earthship in Taos, New Mexico, shame they don't work in cold climates
Concept and design

Do Earthships work in cold climates?

...foam in any building supply store would be a stack of EPS foam that uses different blowing agents that have much lower emissions, and they're much cheaper as we...

Naugler House: the most energy efficient Passive House design in New Brunswick
Efficient home design

New Brunswick's most energy efficient home is Passive House designed

...EPS] panel insulation placed below the slab was designed to also serve as the formwork. The outside of the concrete walls has 12’’ of type II EPS. The inside fa...

Crawlspace radon barrier installation for radon mitigation
Radon in Homes - Mitigation

Removing radon gas from basements and crawlspaces

...foam. A layer of crushed stone will do the job as long as the intake is in the stone and not blocked by the foam. Spray foam will go on top of the stone and sea...

Prefab frost-protected shallow foundation insulated form kit
Slab on Grade

Raft slabs - How to build Insulated Frost Protected shallow foundations (FPSF) on problem soils

...EPS foam © Legalett Read more about Insulated Slab-on-Grade Foundation Form Systems here , from the EcoHome Green Building Guides

Tyvek home wrap left exposed to wind and UV rays
Air and vapour barriers

Choosing the right house wrap / weather barrier, which is best?

...EPS foam which is about 1 perm, and 2 inches of XPS foam is only about .5 perms. Meaning, by putting 2 inches of foam on the outside of the house you have effec...

Slab on grade for a Passive Solar LEED Home insulated by Rockwool © Ecohome
Insulation and soundproofing

Insulating below slab-on-grade floors

...EPS foam under the footing as Rockwool has not been tested yet for the weight of a footing and load bearing wall. Following that will be a skirt of R8 insulatio...

Off grid, passively heated and cooled house in the Gatineau Hills, Que
Off-grid and Net-Zero Housing

Off grid and passively heated, this house in Low, Quebec is aiming for LEED certification

...EPS foam and Roxul batts totalling R28. The benefits of a double exterior wall are plenty. It eliminates thermal bridging through studs, provides lots of room...

Crawl Spaces or Slab on Grade Foundations?
Crawl spaces

Slab on grade or crawlspaces, which is better?

...EPS foam can be used as a vapour barrier when installed with multiple layers and offset joints as it will not absorb moisture from the ground. • Building on h...

Passively-heated off-grid LEED house in Low, Quebec
Off-grid and Net-Zero Housing

Off-grid living blog: a firsthand account of building and living in a remote area

...foam, there is a waterproof membrane stuck to the 8" thick poured concrete wall. Inside of the concrete wall is another layer of 4" EPS foam, with the polyethyl...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...EPS foam sheathing, or alternative choice of rigid insulation panel can reduce any risk of moisture damage, as it brings up the temperature of the exterior cond...