Condensation & Mould Around Bifold Doors - How to Replace Rubber Sealing Strip Damp can be a major issue in the home. Find answers to questions or post your own here.

[Inexorabilis]

Hi folks,

I've uploaded my question to Onedrive in Video format since that can do a far better job than I could do in written format.

Here it is.

Main questions:
- Is it safe to DIY replace the rubber sealant myself on such doors?
- What kind of rubber sealant am I after? The shape is a 90 degree angle sealant with a width of about 8mm?
- Will that slow down the rate of condensation or mould growth?

Thank you very much for your time and help!