This standard perimeter gasket seals the gap around door frames to prevent air infiltration and meet energy efficiency requirements. You mount it on the frame perimeter of commercial doors where air leakage control is required. The aluminum retainer with silicone insert blocks drafts while maintaining door operation.
Pemko manufactures this 303 Series gasket with mill finish anodized aluminum and silicone insert. The system includes mounting hardware and ships ready to install. This full-size version measures 36 inches by 84 inches to cover standard door frames. The silicone insert compresses against the door face when closed.
Fire-rated door assemblies require gasketing that maintains the fire rating while providing air seal performance. For complete fire door requirements including UL 10C testing standards, proper gasketing selection is critical. Building codes also specify egress requirements that affect door hardware selection - see NFPA 101 Life Safety Code for broader context on door opening requirements.
| Material | Anodized Aluminum / Silicone |
|---|---|
| Finish | Mill Finish Aluminum |
| Dimensions | 36" x 84" |
| Mounting | Hardware Included |
| Warranty | 5 Year Limited |
This gasket meets UL 10C fire testing standards, UL 1784 air leakage requirements, ASTM E283 air infiltration testing, and ANSI/BHMA A156.22 door gasketing standards. GREENGUARD Gold certification confirms low chemical emissions for indoor air quality.