Green foam insulation / Guides

Passive House wall system ; Larsen Trusses & dense-packed cellulose insulation
Wall assemblies - new construction

Larsen truss wall systems with double-stud construction & extra insulation for new homes & energy efficient home renovation

...green home building & renovations for max wall insulation A Larsen Truss is a type of lightweight & non structural double-stud wall assembly that allows for thicker insulation, is ideal for dense-packed cellulose insulation wall systems and a very high R-value building envelope without many of the problems associated...

Insulating crawlspaces as part of home renovation
Crawl spaces

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

...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 barrier at 1 inch, and testing shows that EPS foam acts as a vapour barrier (1 perm) at 2 inches or thicker. Rock wool insulatio...

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...

Choosing a building envelope
Wall assemblies - new construction

Choosing a building envelope - starting with the perfect wall

...green' material choice. To improve the performance you can increase the size of studs (going from 2x6 to 2x8) or add several inches of insulation to the exterior. Mineral wool batts have higher R value than fiberglass, and they are much easier to cut and install properly. To discover the appropriate use of insulation...

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

Basement renovations: How to prevent mold when finishing basements

...insulation to create an air and vapour barrier. Unprotected wood touching concrete will wick moisture and eventually rot. One inch of SPUF will solve your problems; four or 5 inches will reduce heat loss and save you money in the long run. Have insulation blown onto rim joists if it isn't already done. Foam must be...

Recycled building materials
Recycled and Reclaimed Materials

Where to buy and sell used building materials

...insulation and flooring etc, you will often get lucky. Reclaimed 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 ...

How much is Too Much Insulation in my Attic or Walls?
Insulation and soundproofing

How much insulation is too much in attics and walls?

...insulation is too much in a house , find more pages about sustainable and resilient green building techniques here : What is the best insulation for a home? How much insulation do I need in green home construction? The difference between Polyiso, EPS & XPS foam insulation & styrofoam Tips for su...

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

Tiny Houses - Living in Cold Climates

...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 that isn’t going t...

Shipping container homes, Good or Bad?
Architecture and plan design

Are shipping container houses environmentally friendly & good or bad to live in?

...insulation on the interior, but to have a sufficient amount of it you would significantly reduce the amount of usable interior space. One option is spray foam, in which case choose CFC free spray foam options for a green build - or see here for how to choose the right home insulation . Stacked containers: It would ...

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

...foam or rigid mineral wool and eliminate the problem all together. We have found using mineral wool 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. ...

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 giving R-16. A couple other finishing details really help to reduce the basement heating loads. First, the basement concrete slab is actually encased on 3 sides by foam, coming down from the walls, and then with the foam underneath it essentially looks like a foam 'bathtub'. This significantly reduces thermal brid...