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On fire-rated commercial door openings, perimeter gasketing is not optional. It is a critical part of the opening’s life-safety and code compliance. Installing a non-certified perimeter seal can result in inspection failures, delayed occupancy, or an opening that does not meet code.
The Dominion UL Certified Screw-On Perimeter Bulb Seal is engineered for spec-driven commercial projects where certification, documentation, and performance matter. Designed for commercial door frames, it provides a durable, long-lasting perimeter seal while supporting strict fire and positive pressure requirements.
Don’t get caught installing a perimeter seal that isn’t certified. When inspectors are involved and documentation is required, Dominion delivers confidence and compliance.
This product is CERTIFIED by UL for use on rated openings:
This seal is also Air Infiltration Tested to ASTM E283, supporting draft control and energy-efficiency expectations in commercial and institutional buildings.
Dominion products are selected for compliance and longevity - not for being the lowest-cost option. This perimeter seal supports ANSI (American National Standards Institute) certification and IBC compliance, making it suitable for healthcare, education, industrial, and commercial projects.
Watch the full step-by-step installation video below. This video is fully responsive and will scale automatically for desktop, tablet, and mobile devices.
Direct Video Link: Watch the installation video on YouTube
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