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uPVC Kitchen Extension Doors Very Cold

Postby Bigwelshmarc » Fri Dec 24, 2021 3:16 pm

My kitchen is a 1990s build extension and has always been noticeably colder than the rest of my house.

It seems worse at the doors, as no matter what the weather, there is always condensation building up on them. I now also have a growing black patch on the inside of the wall that used to be the outside wall.

I had mates round and one of them pipes up "I've got a thermal camera", so we took photos and they are attached. The number in the middle is the temperature where the centre of the picture is pointing.

What is the problem and what do I do about it? I've resealed the frames, although I can't see any evidence of a damp proof course in the extension brickwork.
20211129T (1).jpg
20211129T (1).jpg (33.74 KiB) Viewed 184 times
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Simply Build It

Postby stoneyboy » Sat Dec 25, 2021 7:19 pm

Hi bigwelshmarc.
It looks like there is no insulation in the frame itself and that the seals are not tight to the door. You could try injecting expanding foam into the frame.
Regards S
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