The most common mistakes in weatherproofing.

1. Weather was too cold during installation and the strips didn't attach properly (+5 degrees celsius required for non-track seals)
2. Frames were not cleaned properly from dust, dirt, grease or old glue
3. The surface of the frames is uneven
4. You touched the glue with fingers during installation
5. Paint or varnish on the surface hasn't dried properly before installation
6. The surface has been given a wood protection treatment

Tip! You can also ensure the seals stay in place by stapling their ends to the frames.