HFO Blowing agents / Guides

4th generation blowing agents for spray foam
Insulation and soundproofing

New HFO blowing agents for spray foam will make it over 1,000 times less harmful to the climate

...HFO) molecules contain at least one carbon-carbon double bond that makes them highly reactive in the atmosphere, giving them a very short life - which is why they have such a small impact as a greenhouse gas. The GWP of HFC blowing agents was as high as 1,430, the GWP of the new HFO blowing agents is 1. You don't nee...

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?

...blowing agents back in 2017 . That was well ahead of some other well-known insulation manufacturers who just kept on pumping out the old HFC blowing agents, which were as much as 1,430 times worse in Global Warming Potential. Global Warming Potential, or GWP, is a measure of how much heat-trapping potential a substan...

How to Vent Roofs - the Methods, Vent Types, Fans
Walls and Roofs

Why Roofs need to be ventilated and how to ventilate a roof properly

...blowing agents, see here for choosing the best spray foam with HFO blowing agents . Ecohome’s engineer Denis Boyer performed some moisture simulation models with unventilated roofs, and he confirmed that the risk of interstitial condensation (moisture in the air forming water droplets when coming into contact with a ...

The Top Twelve Green Building Trends for 2020
Planning and Design

Find out what's trending in 2020 for Green Home Construction

...HFO blowing agents (hydrofluoroolefins rather than HFC Hydrofluorocarbons), and we have reason to believe 2020 will see the arrival of XPS rigid insulation boards with lower GHGs as well (Green House Gas emissions). Read more here on our page about choosing the best rigid insulation panels. I know it’s a hard one to ...