New Drip Edge On Old Roof With Curled Shingles - Roofing/Siding - DIY Home Improvement | DIYChatroom

Go Back   DIY Chatroom Home Improvement Forum > Home Improvement > Roofing/Siding


Thread Tools Display Modes
Old 01-18-2013, 01:40 AM   #1
Join Date: Jan 2013
Location: Washington
Posts: 1
Rewards Points: 10

New drip edge on old roof with curled shingles

I'm debating what type of drip edge flashing to install on an existing asphalt shingle roof (the house has no flashing at all, with the expected dripping problems). There are two layers of shingles meaning the house was reroofed at some point and they left the previous roof on. The old bottom layer of shingles is curling down and shredded and damaged along the edges. (You'd think they'd act as a sort of drip edge but no such luck). The newer top layer of shingles is sticking out over the gutter as it should. The gutters are in ok shape.

I will have to either remove or push up the curled down shingle edges in order to slot the flashing between the felt and plywood. Question, should I use the type of drip edge flashing that helps support the old shingle (ie it has a lip on it that sticks out) or should I just go with a flashing that has an angle and can tuck back under the curled shingles. Or should I remove the damaged and curled edge altogether.

My concern with using a supporting flashing and leaving the old edge is that the curl of the old shingles will introduce a gap that water could run back into.

Also since it will be hard to nail the flashing in this situation, will a bead of goo between the flashing and tarpaper be sufficient sealing?

I also toyed with the idea of slotting the flashing between the two layers of shingles although I know it's not technically correct. The house will probably be getting a new roof in the next couple years anyway.

Thanks in advance for your opinions!


Last edited by FearlessInPNW; 01-18-2013 at 01:42 AM. Reason: Forgot to ask about sealing
FearlessInPNW is offline   Reply With Quote
Old 01-18-2013, 07:29 AM   #2
Join Date: Oct 2012
Location: Maryland
Posts: 3,726
Rewards Points: 2,210

What is happening to make you think you have to do anything at all? The reason I ask is that this is going to be tough without removing the gutter, and I would bet that your fascia is probably already toast. Just plan on new fascia when you re-roof, which will be a complete tear off to the structural deck.

If you insist on doing something, I would just use a flat piece of 6 inch, 24 gage Galvanized sheet steel with a return hem on the outer edge, so you can get it under the original felt. Heat up and Lift a tab and throw in a nail or two per length, then put a dab of roof cement over the head.

You may want to work with shorter pieces like 4 foot, and lap them 3 inches or so, so you can work from a ladder. Do Not. I repeat, DO NOT nail through the laps.

You better take a Valium before you start this project though, it will be frustrating.


" Most people would rather die than think, and most do " Bertrand Russell

Last edited by jagans; 01-18-2013 at 09:17 AM.
jagans is offline   Reply With Quote
Old 01-18-2013, 08:51 AM   #3
Gymschu's Avatar
Join Date: Dec 2010
Location: Eastern Ohio (heart of Appalachia)
Posts: 5,202
Rewards Points: 932

Jagans is right, you will be pounding your head against a wall while doing this. I have done this as a temporary fix to keep water from continuing to rot out the roof edges. I have used regular drip edge and slipped it under the shingles as best I could then nailed or glued it down. It is difficult at best as you try to get an 8 ft piece to slide under the shingles but it can be done. Just don't expect it to be a PERMANENT solution because the drip edge will have a tendency to slip out because of the lack of proper nailing. It will give you a year or two of service til you reroof properlly.
Gymschu is offline   Reply With Quote


Thread Tools
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

Similar Threads
Thread Thread Starter Forum Replies Last Post
rubber roof over tar & thoughts on quote wfmrules3 Roofing/Siding 13 10-16-2011 09:00 PM
Ice and Water Shield under drip edge? sutterml Roofing/Siding 10 07-11-2011 05:04 AM
Help! -- what is causing these shingles to fail? imaginator Roofing/Siding 1 09-18-2010 06:29 PM
Is this normal/correct? Shingles overhanging drip ege by 1/2" or so diymonkey Roofing/Siding 11 12-08-2008 08:29 AM
Townhouse flat roof - Neighbor's contractor place huge weight of shingles on our roof DIYInCT Roofing/Siding 2 11-23-2008 10:31 AM

Top of Page | View New Posts


Search Engine Friendly URLs by vBSEO 3.6.1