Code-compliant draft stop installation to compartmentalize concealed spaces and enhance fire safety in multi-family and commercial buildings. Serving Denver, Aurora, Lakewood, Arvada, Westminster, Thornton, Centennial, Boulder, Littleton, Broomfield, Castle Rock, Parker, Golden, Englewood, and the surrounding Denver metro area within 100 miles.
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Code-compliant with IBC, IRC, and Denver Building Code requirements
Restricts air movement in hidden cavities to limit fire and smoke spread
Versatile materials: gypsum board, mineral wool, sheet metal, expanding foam
Critical for multi-family, townhome, and commercial construction
Proper installation avoids failed inspections and costly delays
Experienced crews who understand both draft stopping and fireblocking
A proven, methodical approach refined over 20+ years of professional installation.
We review construction drawings to identify all concealed spaces requiring draft stops per the Denver Building Code and IBC requirements.
We select the appropriate draft stop material — gypsum board, mineral wool, sheet metal, or expanding foam — based on the cavity type and code requirements.
Draft stops are installed to compartmentalize concealed attic, floor-ceiling, and roof spaces per the specified square footage limits.
We coordinate with building inspectors to verify proper draft stop placement, material, and compartment sizes, ensuring your project passes inspection.
Draft stopping is a building code-required construction practice that restricts the movement of air within concealed spaces of building assemblies, including attics, floor-ceiling cavities, crawl spaces, and roof assemblies. By compartmentalizing these hidden spaces, draft stopping limits the volume of air available to feed a fire, significantly slowing fire spread and smoke migration through a building's concealed combustible cavities. Sky Insulation provides expert draft stopping installation for residential and commercial construction projects in Denver, Colorado, ensuring code compliance and enhanced fire safety. Our draft stopping services include the installation of gypsum board, plywood, sheet metal, mineral wool insulation, and expanding foam in strategic locations throughout the building envelope. Per the International Building Code (IBC) and Denver Building Code, draft stops are required to divide attic and concealed roof spaces into compartments no greater than 3,000 square feet, and floor-ceiling assemblies into compartments no greater than 1,000 square feet in wood-frame construction. Sky Insulation works closely with general contractors and building inspectors to ensure every installation meets or exceeds these requirements. Draft stopping is distinct from fireblocking (which controls flame migration) but equally critical to building safety. While often overlooked or improperly installed, draft stopping plays a vital role in protecting multi-family residential buildings, townhomes, and commercial structures where concealed cavities can create pathways for air, smoke, and fire to spread undetected.
Our installations meet IBC, IRC, and Denver Building Code draft stopping requirements — avoiding failed inspections and construction delays.
Draft stopping compartmentalizes concealed spaces, starving potential fires of oxygen and limiting smoke migration through hidden building cavities.
In multi-family buildings, draft stops prevent air, smoke, and fire from spreading between units through shared concealed spaces.
Our crew understands the nuances of draft stopping vs. fireblocking, ensuring the right solution is installed in the right location.
Draft stopping is a code-required construction practice that compartmentalizes concealed spaces (attics, floor-ceiling cavities, roof assemblies) to restrict air movement. This limits the spread of fire and smoke through hidden building cavities.
Draft stopping restricts air movement within large concealed spaces, while fireblocking prevents the passage of flame through small concealed passages (like wall stud cavities at floor levels). Both are required by code but serve different functions and are installed in different locations.
Per the IBC and Denver Building Code, draft stops are required in concealed attic and roof spaces exceeding 3,000 square feet and floor-ceiling assemblies exceeding 1,000 square feet. They are also required in specific locations in multi-family and commercial construction.
Common draft stop materials include gypsum board, plywood, oriented strand board (OSB), sheet metal, mineral wool insulation, and expanding foam. The material selection depends on the specific application, code requirements, and fire rating needs.
Yes. Sky Insulation works directly with general contractors, builders, and developers on draft stopping installations for multi-family, commercial, and institutional construction projects in Denver and the Front Range.
Serving Denver, Aurora, Lakewood, Arvada, Westminster, Thornton, Centennial, Boulder, Littleton, Broomfield, Castle Rock, Parker, Golden, Englewood, and the surrounding Denver metro area within 100 miles.
Based in Denver, CO, we provide professional insulation, fireproofing, and waterproofing services to homeowners and businesses within a 100-mile radius.
+ Surrounding communities within the Denver Metro Area
