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Old 08-21-2008, 01:08 PM   #1
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roof/verticle wall falshing


What is the proper way to flash where a roof runs into a verticle wall? Do you just use 12" roll flashing bent? How would you tie this into the shingles? Do you shingle up to the wall and lay the flashing over them and leave the flashing showing or cover the flashing with shingles? Do you nail the flashing to the shingles or just roof cement it? Thanks for any help with this.

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Old 08-21-2008, 02:09 PM   #2
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roof/verticle wall falshing


Use step flashing.

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Old 08-21-2008, 02:52 PM   #3
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roof/verticle wall falshing


I've read to use step flashing on the sides of a dormer but what about the front of a dormer or wall?
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Old 08-21-2008, 03:14 PM   #4
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roof/verticle wall falshing


Ok, in front of the dormer you can use the bent roll flashing. But someone else will have to help with the details as I haven't had the pleasure of doing this detail. Would be a good place to use some Ice and water shield extending part way up the walls both on the front and side of the dormer.
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Old 08-21-2008, 11:03 PM   #5
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roof/verticle wall falshing


You install a Roof To Wall angle apron flashing.

No face nails on the portion that covers the shingles.

A color coordinated aluminum to match the shingle color works best and do NOT use that thin crap that you can buy at a hardware store ot big box store.

Most roofing supply houses have the various flashings available in stock.

Ed
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Old 08-22-2008, 07:22 AM   #6
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roof/verticle wall falshing


Thanks Ed. Is this roll stock that you have to bend or is this something that is pre bent? From what i have read some people have laid shingles over the flashing to cover the metal. You just leave the flashing showing?
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Old 08-22-2008, 11:09 AM   #7
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roof/verticle wall falshing


Think Like Water!!!

If the shingles are On Top of the metal, rain water will get under the shingles.

Some, or actually many guys actually do install shingles on top of the metal, but that is usually when applying a second or more layer and they do not take the time to fit the shingles Under the metal like it is supposed to be.

It is sold already pre-bent, but if you have access to a brake and know how to bend metal, you can make your own out of Gutter Coil .032 Stock from a roll. Not the kinds of rolls of material you get at a Big Box or hardware store though.

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Old 08-22-2008, 12:24 PM   #8
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roof/verticle wall falshing


Thanks Ed

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