About this episode

Matt Risinger continues to debunk myths surrounding spray foam insulation and discusses its real benefits and risks.

Matt Risinger continues his deep dive into spray foam insulation, part two, sorting the genuine benefits from the marketing hype. He unpacks common myths—claims that foam pays for itself, blocks sound, or solves every building problem—and explains why cavity insulation alone doesn't guarantee air sealing. He covers the real risks of open cell foam in humid attics, addresses whether spray foam is banned in Europe (it isn't, though regulations are tightening), and shares practical hybrid approaches combining closed cell foam with other insulation types for cost and performance balance

Topics covered

• spray foam insulation
• myths
• building problems
• air sealing
• insulation types
• humidity

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