Roof window corner always damp, 23°C (73°F), 40% humidity
Outside temperature 5°C (41°F)
The roof window has been installed for 20 years. I only just noticed the issue at this spot.
What can I do? I sanded it down, but this corner always stays a bit damp. The other three corners are dry.
Best regards
Outside temperature 5°C (41°F)
The roof window has been installed for 20 years. I only just noticed the issue at this spot.
What can I do? I sanded it down, but this corner always stays a bit damp. The other three corners are dry.
Best regards
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