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Old 05-11-2010, 09:51 AM   #1
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Replacing Window Drip Edge

Hello all,

First time poster here.

Background info:

My home is 25 years old, and purchased by me 2 years ago. Several of the windows have finger jointed pine drip caps with no flashing.

As you may suspect most of the edges are cupped, warped, and totally rotten. This has contributed to the sills rotting in the lowest corners as well. Some of the windows have aluminum siding on them and some do not, so I suspect that there was rot years ago and aluminum siding was placed around the window trim.

I intend to replace the drip moulding with a pvc product and rigid flashing.

Rigid 8" flashing x 50 ft is $13.00

Pre-fab white powder coat flashing at box store, 8 ft $3.00

Pvc Drip Moulding is about $1/ board foot

I have access to a portable metal brake and shear.



Am I better off purchasing rigid flashing and bending it myself or purchasing it in pre-fab lengths from big box store?

I would normally pull siding nails, slip flashing up, caulk and nail siding thru original nail holes. I have heard recently your not supposed to nail thru flashing just caulk to trim board and nail siding off sides of this the current recommendation?

Any other advice given my situation would be greatly appreciated?


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Old 05-11-2010, 09:24 PM   #2
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what you will custom bend will probably be very similar to what you can buy,just make sure it fits the pvc drip you plan on installing

as far as the nailing what you may have heard was not to nail thru the face of the flashing,you can nail the vertical leg up high


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Old 05-11-2010, 09:26 PM   #3
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Thanks. I checked out the stuff at big orange today and the pvc and pre-fab drip edges fit together well. I will just end up using these.
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Old 05-13-2010, 10:58 AM   #4
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I cannot stand windows made with aluminum siding. You should get vinyl windows instead.
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