Membrane in a lead valley

[Co1]

Morning everyone. I could do with a bit of guidance on how to lay the roofing membrane into a lead valley. I’ve searched the internet and can’t seem to find anything that is clear. Any help would be appreciated. 
Thanks

Col

[nod]

You need A1f building paper This will stop the lead from sweating 

At £70 a roll many roofers will just Chuck a length of membrane in there 

But if you are going to do that you may as well use the cheap plastic valleys that all the mass produced houses are now using 

[nod]

This was the last one that I did 

[Dave Jones]

grp trays every time.

[Co1]

7 hours ago, nod said:

You need A1f building paper This will stop the lead from sweating 

At £70 a roll many roofers will just Chuck a length of membrane in there 

But if you are going to do that you may as well use the cheap plastic valleys that all the mass produced houses are now using 

Thanks a lot. So that goes between the roofing membrane and the lead? 

[nod]

2 hours ago, Dave Jones said:

grp trays every time.

Cheap 

[nod]

31 minutes ago, Co1 said:

Thanks a lot. So that goes between the roofing membrane and the lead? 

Directly onto your timber valley 

[Co1]

Then the membrane over the top, and then the lead?

[makie]

35 minutes ago, Co1 said:

Then the membrane over the top, and then the lead?

The lead goes directly on top of the building paper.

[Co1]

That’s brilliant, thanks a lot. 

[nod]

2 hours ago, Co1 said:

Then the membrane over the top, and then the lea

 

lead directly on the paper Then curl the edge of the membrane under the slate 

[Co1]

34 minutes ago, nod said:

 

lead directly on the paper Then curl the edge of the membrane under the slate 

Thanks a lot. Much appreciated. 

[nod]

32 minutes ago, Co1 said:

Thanks a lot. Much appreciated. 

Anytime 

[scottishjohn]

don,t forget to fit the lead valley in lengths --NOT one piece

about 1.5m each bit and overlap  them

this will stop any problems from expansion of the lead  when roof is hot

also easier to get a long valley looking good