Pemko 305CR Standard Perimeter Gasketing - 3'0" x 7'0" Set with Sponge EPDM Insert
The Pemko 305CR is an architectural-grade rigid jamb weatherstrip designed to provide a high-performance seal for the head and jambs of standard 3'0" x 7'0" commercial door openings. It features a durable Clear Anodized Aluminum housing equipped with a Sponge EPDM (R) insert, making it an exceptional barrier against air infiltration, smoke, and fire. This gasketing is engineered to seal gaps up to the depth of its seal, ensuring a snug, compliant fit for listed steel frames and wood core doors.
High-Performance & Life Safety Features
- Durable Sponge EPDM (R) Seal: The sponge EPDM insert (ER1BL) offers superior weather resistance and recovery, ensuring a tight seal that withstands heavy commercial use and environmental exposure.
- Positive Pressure Fire Rated: Fully tested and approved under UL 10C and UL 1784 standards, making it suitable for steel doors rated up to 3 hours and wood doors up to 20 minutes.
- Smoke & Air Protection: Effectively blocks the passage of lethal smoke and drafts, meeting the requirements for smoke door assemblies and improving building energy efficiency.
- Total Sealing Coverage: With a profile height of 7/8" and a total height of 1-1/8" with the insert, this gasket provides ample coverage for varying door-to-frame clearances.
- Corrosion-Resistant Housing: The clear anodized aluminum finish provides a professional look while protecting the housing from oxidation in interior and exterior applications.
Technical Specifications
- Manufacturer: Pemko (ASSA ABLOY)
- Model: 305CR (Clear Anodized Aluminum)
- Insert Type: Sponge EPDM (ER1BL - Black)
- Dimensions: 3/16" Width | 1-1/8" Total Height
- Set Size: Includes pieces for one 3'0" x 7'0" door opening.
- Certifications: BHMA Certified, UL 4L10, Positive Pressure Rated, and Air Infiltration Tested.
Pro-Tip for Facility Maintenance
The Pemko 305CR is the "workhorse" of perimeter gasketing, ideal for openings that require a thicker, more forgiving seal than standard vinyl. The Sponge EPDM insert is specifically chosen for its ability to compress and fill irregular gaps in the frame. For a professional installation, ensure the aluminum housing is mitered correctly at the corners to provide a continuous, unbroken seal against smoke and drafts.
| Gasketing Set Size | 3'0 x 7'0 Set |
| Brand | Pemko |
| Insert Material | Neoprene |
| Housing Finish | Aluminum |
| Weatherstripping Type | Perimeter Gasketing |
| Mounting Type | Surface Mounted, Screw Applied - Exp Screw |
| Smoke Rated | Smoke Rated |
| Fire Rated | Fire Rated |
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