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Roof Valley Construction?

johney · 2019-09-27 20:43:50

Hello folks, Ye have helped me before and I am cheeky enough to come back for another issue I have with my cottage renovation. I am re roofing a little old cottage and have also put a tiny porch on the front. A frame roof on porch at 45 degrees backing into main roof at 40 degrees. Roof is built. My question is about the…

27-09-2019 8:43pm

#1

johney

Banned (with Prison Access) Posts: 88 ✭✭

Join Date: July 2007

Posts: 55

Hello folks,

Ye have helped me before and I am cheeky enough to come back for another issue I have with my cottage renovation.

I am re roofing a little old cottage and have also put a tiny porch on the front. A frame roof on porch at 45 degrees backing into main roof at 40 degrees. Roof is built.
My question is about the valley. Do I construct the valley boards first, then felt roof? Or felt roof first, then nail on valley boards? I understand lead cannot rest on felt in valley?

Any help really appreciated.
Thanks a lot.

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Comments

#2 29-09-2019 4:20pm

Le shovelle

Registered Users, Registered Users 2 Posts: 83 ✭✭

Join Date: June 2019

Posts: 83

Valley boards first then membrane. Use a roll of dpc between the membrane and the lead to allow for movement.

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