I have been asked to help stop a small leak.
Water appears to be coming in through some vertically mounted wooden cladding that surrounds a large hot air duct from a launderette. I can only think that when the wind is blowing rain against the cladding it is getting throught the joints as it runs down the length of the planks.
Is there some sort of thick waterproof coating that could be applied? I think someone has had a go previously with Aquaseal or similar bituminous roofing sealant but this has gone flaky over time and is certainly not working.
The alternative is to rip it all off and reboard with something, or even think of a solution that would leave it exposed, but protected from mechanical damage from people passing etc.
I await all your wisdom.
Thanks as always. Rob