Valley/plain tiles

[23vc]

Hi, got some concerns about this leaking Valley and any opinions welcome
Tiles are cut and butted up over the lead valley, with no gap, not sure this is right?
I have shifted the first few rows out to clear the valley out but no idea if I've made it worse
Tiles are just sat on the lead and slipping into the valley so can hardly make out where the courses are meant to be. Lead itself is in one piece but not kicked up at the sides much
Also pitch is shallow like 15-17 degrees which I thought was unsuitable for these plain tiles.
Any advice welcome, it's leaking inside along the right hand side of the valley. I'm not a roofer but keen to know if it was ever done right and what's likely needed to fix. Cheers

 

[catlad]

35 degree's is the minimum pitch for those tiles.

 

[23vc]

Thanks that's what I thought. Any thoughts on the valley as I've not seen it done like that before and its only the valley that's leaking as far as I know

 

[colind86]

It's a mitred valley. Probably done like that due to the shallow pitch. As much as Catlad is right about the pitch and those tiles not being suitable it's a common thing and seen too often with shrunken gauges. Tile 1 on the right should have a follow on . It looks like tile 3 s bond is exposed due to lack of follow on from tile 1. By looking at it the left h/s of the roof has had the gauge shrunk whereas the right hasn't . Try sorting tile 3s bond if that doesn't help maybe it's been leaking since the roof was done and the felts just perished at the valley.

 

[23vc]

Thanks for the helpful info
Is tile 1 the lowest mitred tile at the bottom of the valley on and tile 3 the next mitered tile up the valley? Cheers

 

[^woody^]

It's all wrong.

The valley needs to be sealed with the tiles bedded and a wider valley, and there needs to be fillets to act as a water stop up the edge of the lead.

You also say the lead is one piece, but I hope to don't mean that else or will be splitting next spring.

 

[23vc]

Thanks woody that's what I thought. When I took some tiles off I saw the lead join so I think the lead is in sections ok. I think what Colin said about it never worked but the felt is starting to leak now is the problem, it was done 10+ years ago

 

[noseall]

Opt for a LP/GRP dry valley.

Oh, and use some tiles that are suitable for the pitch.

 

[23vc]

Thanks, confirmed what I thought

 

[catlad]

Lets face it if they knew what they were doing then they wouldn't have put those
tiles on in the first place, so I would assume its all wrong and start again if you
want peace of mind.