Types of Bottom Rubber Seals for Garage Doors


Garage doors use bottom weather seals to prevent the rain and snow from getting into the garage as well as to cushion the door as it is closed. Bottom rubber seals for garage doors come in different shapes depending on the type of door. Bottom seals are universal among most of the major manufacturers of garage doors.

Foam Rubber Weather Seal

  • Foam weather seal is common to many wood garage doors. The foam is a spongy rubber that is relatively inexpensive and is the type of rubber that usually comes with new garage doors. The weather seal is flat with a small angle that extends past the door. Foam weather seal only requires simple roofing nails to secure the seal to the bottom edge of the garage door.

Hard Rubber Weather Seal

  • Similar in design to the foam weather seal, hard rubber weather seal is a better option for wood garage doors. Hard rubber weather seal lasts longer than its foam counterparts. The hard rubber weather seal is also less likely to stick to the garage floor during cold temperatures. Hard rubber and foam rubber come in varying lengths, and both are cut to size quickly with a pair of household scissors.

T-Bulb Weather Seal

  • Most steel garage doors use an aluminum channel on the bottom section to attach the bottom seal. T-bulb weather seal has edges on each side that slide into the aluminum channels. T-bulb weather seal comes in vinyl or rubber. The seal is folded lengthwise into a "U" shape, and the edges slide into the channel.

Threshold Seals

  • Another option for garage door bottom seal is a threshold seal. Threshold seals attach to the garage floor directly under the path of the garage door. Threshold seals are especially useful for garages that have a slight slope in the floor pointing toward the garage. The threshold acts as a second barrier, preventing rainwater from seeping into the garage when the door is closed.

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