ᐅ The compressible sealing tape between the window and the exterior wall is deteriorating.

The compressible sealing tape installed between the window and the exterior wall is gradually deteriorating. It is turning gray and becoming crumbly. I already had a professional come by, but they were unsure how to proceed. They suggested applying silicone over it, "although this is no longer a common practice," or alternatively leaving it as is and continuing to monitor the situation.

Does anyone else have any ideas?

If the professional is at a loss, in 99.9% of cases they are either the "contractor" or not a professional at all.

MachsSelbst schrieb:

If the professional is at a loss, then in 99.9% of cases they are either the "contractor" or not a professional at all.

Or some things can no longer be "properly" repaired. If you break a broom handle, the carpenter might be able to glue it, but it still won’t be fully intact.