Where is spray foam insulation typically used? How does it work?
Spray foam Insulation is a relatively new insulating product technology, developing over the past 20 years or so. The driving force behind the spray foam concept is that to properly insulate a space, you need to provide not only insulation value (r-value) but also a true and proper seal against the worst culprits in heat loss: air and vapour. Spray foam very effectively provides all 3 elements. Spray foam has many applications. Typical locations include walls, crawlspaces, attics, cathedral ceilings, hot tubs, above-ground pool enclosures, under a heated or unheated concrete slab floor…the list goes on. The only limiting factor is that spray foam is essentially plastic and will melt/burn so it needs to be protected from heat. See below for a further discussion of this.
