hfo / Green Building & Sustainable Home Renovation Information & Advice

...HFOs, but we will update this article as soon as we find one. Until HFOs make it in XPS panels, we'd still recommend avoiding them whenever possible.  Spray foam manufacturers that are switching to HFO blowing agents by the end of this year: Demilec Spray Foam Closed Cell Insulation Products  Available across Canada &...

Home Insulation - how much is too much? A House can definitely be under-insulated (millions of homes throughout the United States and Canada have this very problem), but can a home have too much insulation? In short, yes it can. In reality, there is an optimal balance between the up-front cost of insulation and the lon...