No valley metal

jimsonburg

You need to get complete information from the builder what he means by "not to put anything".

alwright

i have put metal valleys on all my shingles fron 2.5 in 12 to 18 in 12 roofs on the west coast of of vancover island and i have never had any leeks from my valleys and i have used 30 lbs felt on then but i have always used minimum 26 ga w valleys with a 6 inch lap on them it is part of the building code of bc now that you must have metal valley made from 24 inch stretch out metal
and on the west coast of bc their is hi winds and rain all the time.

the advantage of metal valleys helps a fair bit when you have pine tress around as the pine nedels tend to run down the valley when raining not like a weaved valley were they stick alot more to the shingles

and when i shingle the valley i always run a shingle up the valley parallel to the center of the v about 1.5 away and that way the shingle will seal to the valley and give a nice really straight line to go off

Interloc

ditto... but different regions different ways..

JWRoofing

Valley metal is code in the high wind zone, so we use it under every valley and if the house is near the ocean then we use copper.

Even though I espouse the virtues of copper valley and flashing metal near the salt water, last month we removed a very old shingle roof that was just blocks from the salt water. To my surprise, exposed galvanized metal in the valley only had one spot that rusted through. I would imagine up North it would easily outlast the roof if primed, painted and covered.


JW


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rick13

I also never put valley tin in valley I also put ice guard on it first a way better looking job

RooferJim

We never use metal vallys for ashphalt shingles, that is unless they just want it for looks and in that case is copper. We do however always use I&W shield in the vallys though "who wouldn't".

www.jbennetteroofing.com