Safer Alternatives to Spray Foam Insulation (That Still Perform Well)
Compare spray foam insulation alternatives: rigid foam, mineral wool, cellulose, and aerogel for walls, roofs, and foundations.
Spray Foam Insulation: Health Risks, Off-Gassing Dangers & Safer Alternatives Spray foam insulation is effective at sealing air leaks and improving energy efficiency, but it comes with serious health and environmental concerns -- from releasing VOCs and isocyanates during installation to being petroleum-based. Understanding these risks is the first step toward making a safer choice for your home. This guide covers everything you need to know: what makes spray foam problematic, the specific health risks involved, how to stay safe if you do use it, and -- most importantly -- the safer alternatives that still deliver strong thermal performance. Key Takeaways: - Health risks are real: Spray foam releases VOCs, isocyanates, and flame retardants during installation and curing that can cause respiratory issues, chemical sensitivity, and worse. - Indoor VOC levels can be up to 10x higher than outdoor levels during and after spray foam installation. - Vulnerable populations -- children, pregnan...