ᐅ The silicone sealant around the window has numerous unsightly residues.

Hello everyone,

Unfortunately, the pictures are quite blurry, but I hope that some of the experts here can still help identify what this might be.

Thank you in advance and have a great Pentecost.

At first glance, and based solely on the pictures, my initial thought would be that it is likely mold!

To me, it also looks a lot like mold – at least that's what the photos suggest. Can the stains be wiped away (at least partially)?

nordanney schrieb:
It also looks like mold to me – at least that’s what the photos suggest.
Can the stains be wiped off (at least partially)?

I didn’t try that when I viewed the apartment.

I also believe that this is mold. This means that the window installation (by today’s standards) is faulty, or the window frame has a very poor U-value. As a result, condensation forms there.

Domski schrieb:
I also believe this is mold. This means that the window installation (by today's standards) is faulty, or the window frame has a very poor U-value. As a result, condensation forms there.

Unfortunately, this is a new build, completed last year.