The Clopay 4.5" Bottom Seal Astragal is a replacement weatherstrip designed for Clopay sectional garage doors to improve the seal between the door and the floor. Its wider face compresses to close gaps caused by uneven concrete or door settling, helping block drafts, water, dust, and pests while reducing light infiltration and road noise. Ideal for residential and light commercial applications, this astragal helps enhance comfort and efficiency by restoring the door’s perimeter protection.
Installation typically involves sliding the new astragal into the existing bottom retainer channel on compatible Clopay doors, then trimming to length and securing the ends to prevent movement. For best results, raise the door, remove the worn insert, clean the retainer track, and use a mild soap solution as a feed lubricant; install in moderate temperatures to maintain flexibility. Always disconnect the opener, secure the door to prevent movement, and avoid contact with spring hardware during service. Compatibility varies by retainer profile, so confirm your door’s bottom track style and face width requirements match this 4.5" profile before ordering. This OEM-style replacement is suited for buyers searching for a Clopay garage door bottom seal, astragal, weatherstrip, or replacement bottom weather seal for sectional doors.