Tri-Fin Polar Weather Seal Kit

The Tri-Fin Polar Weather Seal Kit is a complete garage door seal kit designed to seal the top and sides of residential and commercial overhead doors exposed to extreme weather conditions. This kit includes the durable EPDM Tri-Fin Polar Seal, aluminum retainers, mounting fasteners, and installation instructions, providing everything needed for a complete installation. Designed for use on doors up to 10' x 10', 12' x 12', or 14' x 14', the kit helps reduce drafts, dust, insects, moisture, and debris while improving the overall weather seal around the door perimeter.

Unlike standard vinyl weather seals, the Tri-Fin Polar Seal is manufactured from premium EPDM rubber that remains flexible in temperatures ranging from -60°F to over 200°F. Its unique triple-fin garage door seal design features a built-in thermal break that creates an additional gasket behind the retainer for an even tighter seal. If you're comparing products such as a triple fin PVC top and side garage seal, this EPDM design offers superior cold-weather flexibility and long-term durability for demanding residential and commercial applications.

Why Choose This Kit?

• Complete garage door seal kit with seal, retainers, fasteners, and instructions
• Premium EPDM rubber remains flexible from -60°F to over 200°F
• Triple-fin design provides additional protection against wind and air infiltration
• Integrated thermal break creates an extra sealing gasket behind the retainer
• Helps block cold air, dust, insects, moisture, and debris
• Compatible with residential and commercial sectional overhead doors
• Standard 45° aluminum retainer profile
• Can be trimmed during installation for an exact fit

Choosing Your Kit

About Our Cut-Down Kits: The included aluminum retainers are supplied in shorter 4'1" or 5'1" sections to simplify shipping while making handling and installation easier. Both the retainers and seal can be cut in the field for a custom fit.

Available Kits:

• 10' × 10' kit includes six 5'1" aluminum retainer sections, one 30'6" roll of tri-fin seal, and 36 fasteners.
• 12' × 12' kit includes nine 4'1" aluminum retainer sections, one 36'9" roll of tri-fin seal, and 39 fasteners.
• 14' × 14' kit includes four 5'1" and five 4'1" aluminum retainer sections, one 40'9" roll of tri-fin seal, and 51 fasteners.

What's Included

• One roll of Tri-Fin Polar EPDM weather seal
• Standard 45° aluminum retainer sections (A0282)
• Self-tapping mounting fasteners
• Installation instructions

Technical Specifications

Installation

Measure the width and height of your door, trim the seal and aluminum retainers as needed, then install the retainers using the included self-tapping fasteners. The flexible EPDM seal easily slides into the retainer to create a durable weather-tight seal around the top and sides of the garage door.

Frequently Asked Questions

What types of garage doors is this kit designed for?

This kit is designed for residential and commercial sectional overhead garage doors and uses a standard 45° aluminum retainer profile.

Can I cut the kit to fit my garage door?

Yes. Both the EPDM seal and the aluminum retainers are intended to be trimmed during installation to match your door dimensions.

Why does the Tri-Fin design perform better in cold weather?

The Tri-Fin Polar Seal combines multiple sealing fins with an integrated thermal break that acts as a gasket beneath the retainer, helping maintain a tighter seal and providing improved protection against cold air, wind, dust, and moisture.