How do I properly seal the roof membrane again?

Hello

we need to cut through the roof membrane to get a cable out for the roof window blind.

After we have connected the cable to the roof window blind, how do we properly seal the roofing membrane again?

How is this done correctly?

You need a cable feed-through sleeve for this, right?

Where can we get something like that and what is the correct term for it?

search for cable sleeve, e.g. Kaflex, Kaiser etc.

Which one would you rather recommend? Kaflex? Are they also available in sizes larger than 14x14 cm?

I use the Kaflex and am very satisfied. I don't think it comes in a larger size. For cable entries, you only need a small hole. For large things, you better seal again with Siga tape.