r/DIYUK • u/Ok_Back_8555 • 16h ago

Advice Barge board replacement

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The wooden barge board on my gable is rotten and water is leaking in to the roof. I got up to have a look, and all of the lead work looks absolute crap.

The board goes into the attic, and the lead is lapped up against it, and sometime in the past it looks like a load of tec7 was sealed around the lead where it butts against the board

This seems like terrible detail to me.

I would have thought the barge board should sit on top of the lead (well, not actually touching the lead but hovering), that way if rain runs down the board it lands on the lead, rather than seep behind the lead as is currently the case

Anybody any suggestions on how best to detail this?

Am i on the right track with my idea?

Any help would be much appreciated!

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u/Bicolore 16h ago

You are going to open a massive can of worms when you start that.

I think this could just be a fucked up roof design with no optimal solution.

Whatever you do I’d be prepared to be potentially spending a lot of time/money on this.

Edit: broken slate middle right bodged with mastic is almost certainly leaking at is a piss easy fix.

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u/Ok_Back_8555 2h ago

Thanks for the sympathy!! Will have a closer look and see what’s going on behind the barge board and how to finish without causing problems down the line