What are HFCs and HFOs? Understanding the Transition from HFC to HFO in Spray Foam Blowing Agents, Part Two
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What are HFCs and HFOs? Understanding the Transition from HFC to HFO in Spray Foam Blowing Agents, Part Two

In this blog post, we unpack what hydrofluorocarbons, or HFCs, and hydrofluoroolefins, or HFOs, are; why the EPA is suggesting the change from HFC to HFO in spray foam insulation; and which US states already require the transition.

Understanding the Transition from HFC to HFO in Spray Foam Blowing Agents, Part One: Spray Foam Chemistry
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Understanding the Transition from HFC to HFO in Spray Foam Blowing Agents, Part One: Spray Foam Chemistry

The latest EPA guidelines are calling for a transition from hydrofluorocarbon – or HFC – in spray foam blowing agents to hydrofluoroolefin – or HFO.

To better understand HFCs, HFOs, and blowing agents, we first need to examine spray foam chemistry.

Let’s jump in!