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!

[stoneyboy]

Hi inexorabilis,
Yes replacing these seals is an easy DIY task. It won’t cure your mould problem but should stops drafts.
It’s less easy to get the right size wedge gasket, they generally come in 3, 4, 5, 6mm section. Pull out a section of the existing gasket and order a metre of a similar size and some +/- 1 mm. Select the one that is quite a tight fit near the corners. When you fit the new gaskets cut the lengths about 5mm longer than the actual length, this is because the rubber tends to shrink in time and pull away from the corners.
Regards S