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The Ten Golden Rules for Foam-Free Flat Roofs

The Ten Golden Rules for Foam-Free Flat Roofs

Ten Golden Rules for Foam-Free Flat Roofs When insulating a flat roof wood structure, 475's goal, as always, is to do it in the most healthy, structurally sound, durable, and ecologically friendly way - achieving truly high performance. This means we try to generally avoid using foam above or below the roof deck (for more on that, see … read more

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Reason Foam Fails #7: Unhealthy Off-Gassing & Dust

Reason Foam Fails #7: Unhealthy Off-Gassing & Dust

Reason Foam Fails #7: Unhealthy Off-Gassing & Dust Spray foam throws off two forms of toxic poison: off-gassing of the volatile organic compounds and uncured chemical dust. Spray foam is a two-component chemical system: Part A and Part B. When the chemicals are properly prepared and precisely mixed, under the right site conditi … read more

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Foam Fails

Foam Fails

Introduction to 475's Foam Fails Series If we are to address our concerns of health, cliamte change, safety, energy efficiency, resiliencey, and reliability, then we ask you to seriously consider eliminating foam from your next high performance building enclosure. Why should you contemplate a foam free enclosure? Because foam fails … read more

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