Fire blocking stops the rapid spread of fire through concealed cavities in building assemblies. The Massachusetts State Building Code (780 CMR) and International Building Code require fire blocking in specific locations — and enforcement on this requirement has increased significantly in recent years.
Smooth installs code-compliant fire blocking in wood-framed walls, floors, and concealed spaces throughout Boston-area new construction and renovation projects. We use spray foam, mineral wool, and solid blocking materials appropriate for each specific application.
Fire blocking prevents chimney-effect fire travel through concealed wall and floor cavities
Meets IBC 718 and Massachusetts 780 CMR requirements for all required locations
Two-component spray foam provides code-approved fire blocking in irregular and inaccessible cavities
We document all fire blocking locations for building inspector review
Required fireblocking locations identified per IBC 718 and MA amendments.
Spray foam, mineral wool batts, or solid blocking selected per assembly requirements.
All required locations blocked per code. Photo documentation maintained.
Work staged for building inspector review before concealment.
Response within 2 hours. Mass Save® eligibility reviewed on every quote.
Get Free Estimate → 📞 857-214-2434Most MA homeowners qualify for 75–100% rebates on qualifying insulation and air sealing projects. We handle all paperwork.
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