
Intumescent coatings up to a 2-hour fire rating, plus firestopping and penetration sealing for fire-rated assemblies. 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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Intumescent coatings with fire ratings up to 2 hours
Firestopping for pipes, cables, ducts, and joints
Penetration sealing through fire-rated walls and floors
Code-compliant with Denver Building Code, IBC, and NFPA standards
Protects structural steel and fire-rated compartmentalization
Experienced crews for commercial construction schedules
A proven, methodical approach refined over 20+ years of professional installation.
We review architectural drawings and fire protection specifications to determine the required fire ratings, intumescent coating system, and firestop details.
Steel is cleaned and primed for intumescent adhesion. Openings through fire-rated walls and floors are surveyed so each penetration can be sealed with the correct system.
Intumescent coatings are applied to the specified thickness on structural steel. Firestop materials seal pipe, cable, duct, and joint penetrations per UL-listed details.
We verify coating thickness and firestop installation, prepare documentation for building inspections, and coordinate with inspectors for code compliance.
Fireproofing is a critical passive fire protection system that safeguards structural steel and fire-rated building assemblies. Sky Insulation provides intumescent coatings with fire ratings up to 2 hours, plus firestopping and penetration sealing for commercial, industrial, and multi-family construction throughout the Denver metro area. Intumescent coatings are thin-film finishes applied to structural steel. When exposed to fire, the coating expands and forms an insulating char that slows heat transfer to the steel. Firestopping and penetration sealing close the openings where pipes, cables, ducts, and joints pass through fire-rated walls and floors — maintaining compartmentalization and the assembly's fire-resistance rating. These systems help projects meet Denver Building Code and International Building Code (IBC) fire-resistance requirements. From mixed-use developments to schools, hospitals, and commercial buildings, Sky Insulation delivers code-compliant fireproofing that protects occupants, preserves structural integrity, and satisfies inspection requirements.

Our intumescent coatings, firestopping, and penetration sealing meet Denver Building Code, IBC, and NFPA fire protection standards — helping your project pass inspection.
Intumescent coatings keep structural steel below failure temperatures during fire events, preserving building integrity and protecting occupants.
Firestopping and penetration sealing maintain fire-rated assemblies so fire and smoke cannot travel through unsealed openings.
Our applicators bring over 20 years of commercial construction experience to coating and firestop work on tight schedules.





We apply intumescent coatings with fire ratings up to 2 hours, and we install firestopping and penetration sealing at openings through fire-rated walls, floors, and ceilings.
Our intumescent coatings provide fire-resistance ratings up to 2 hours depending on the product system, application thickness, and structural assembly. The required rating is determined by building type and occupancy per the Denver Building Code and IBC.
Firestopping uses UL-listed systems (caulks, putty pads, wrap strips, pillows) to restore the fire rating of an assembly where something passes through it. Penetration sealing is that same work at each pipe, cable, duct, or joint opening. Both are required to keep fire and smoke from spreading between compartments.
The Denver Building Code requires specific fire resistance ratings for structural assemblies based on the building's construction type, height, area, and occupancy classification. Most commercial, multi-family, and institutional buildings require some level of structural fire protection and firestopping at penetrations.
Yes. Sky Insulation works directly with general contractors, architects, and building owners on commercial and industrial fireproofing projects throughout 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