Low pitch bonding gutter.

[Duck and Hammer]

Hi

Long time lurker, first time poster here. Hopefully you can help.

To set the scene, my neighbour and I have a low pitch roof (10 degrees so could be called fiat!) over the rear extensions. It was put up over an existing flat roof - probably to fix a leak and sold as a permanent solution before the builder ran away laughing. The problem is, it's slate. Not surprising it now leaks like a sieve on my side, but the neighbours don't want to touch theirs.

I'm comfortable with replacing it with forticrete centurion tiles myself, but I'm confused on the join - do bonding gutters, dry or secret, work at that pitch, or will I need to put a bigger lead gutter at the join? I don't really want to change pitch if i can find a way not to.

Thanks for any help.

Owen

 

[catlad]

I wouldn't try a bonding gutter at that pitch.
Why don't you make a channel out of lead were
the roofs meet

 

[Duck and Hammer]

Cheers, that's what I was thinking, but not confident it would work without making a large area to the side. It might be worth raising my roof 10 cm on the same pitch, and running soakers, at least my side would be fine.

 

[catlad]

Yes that would do it but it means a lot more work.

 

[Duck and Hammer]

Yes it is, my hope was just to add depth to the rafter to gain the height, so less work than rebuilding. Would that work?

Oh, the reason I didn't want to change pitch is because the max I can achieve is 15 degrees and the two would be very similar at the eaves, leaving similar issues as I have now in joining them, whereas the same height or a continuous difference would be easier to do.

 

[Duck and Hammer]

And thanks for the help.