Passing the Inspector: Navigating Mass Stretch Code R‑Values Using Reclaimed Foam Boards

Passing the Inspector: Navigating Mass Stretch Code R‑Values Using Reclaimed Foam Boards

Quick takeaway Massachusetts’ updated Stretch Energy Code sets higher insulation benchmarks—R‑60 attics, R‑20 + 5 ci walls, and sub‑45 HERS ratings—yet building officials will accept reclaimed rigid foam when you can prove its long‑term thermal resistance, fire safety, and proper detailing. With a paper trail that ties aged R‑values to ASTM C1289 tests, shows compliance in a REScheck or…

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