Best way to seal and insulate around garage door frame

30 Jan 2011
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United Kingdom
I want to seal and insulate the tiny gaps around my garage door frame from the inside. I have a standard single-width up-and-over metal garage door. I noticed that the frame has been bolted into the brickwork and the tiny gaps haven't been sealed.

What's the best way to ensure a good airtight seal between the garage door frame and brickwork, preferably with good insulation properties.

I was considering using expanded foam.
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Ex-foam is excellent as a gap filler that does not conduct heat, however it is lousy at weathering externally.

Fill any gaps, cut off the excess then fit a bead over the foam or recess the foam back and caulk it with silicone.

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