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Mini gutter or bent flashing for water routing #4783358
06/10/18 08:32 PM
06/10/18 08:32 PM
Joined: Dec 2002
Posts: 42,135
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,135
New Jersey
We had a shed built a few years back. Its a great little setup, we have been quite pleased with it except for one thing - water routing down the one side.

There is a side door and we have come to realize that some water can occasionally come in under heavy rains.

The design is such that there is maybe 1-1.5" of overhang of the roof from the vertical panels that make up the exterior walls. There is no practical overhang of the shingles beyond that.

So I guess under hard rain, the water teams down the roof and then falls straight down, with some managing to drip under the very short eave. Not sure if the drip edge isnt angling the water far enough out, or if under lighter rain, perhaps the water takes more of an arc off the roof and away from the walls.

Naturally Id like to prevent this, as it is obvious that there has been water on the floor of the shed from this.

The drip edge and design of the shed doesnt really allow the installation of a gutter. While I suppose one could be rigged, I dont think it would look or operate right.

I was thinking to take some flashing and try to fabricate something. Either let the flashing just extend out beyond the last shingle by an inch or two in order to help route the water, or else literally tuck it under and then let it route all the water to a sufficient distance away from the shed walls on either end.

Would either of these work? If I took a brake and bent the flashing up, could I put it under the very last shingles, at the drip edge? Those I can lift very slightly. All higher levels seem to be bonded to themselves at this point. Or do I put the flashing on top of the shingles, and nail/bond it down somehow, in order to route the water but avoid any flashing from routing water under the shingles?

Thanks!

Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783365
06/10/18 08:43 PM
06/10/18 08:43 PM
Joined: Jan 2011
Posts: 3,012
PV Az
AZjeff Offline
AZjeff  Offline
Joined: Jan 2011
Posts: 3,012
PV Az
When out last house was re-roofed there wasn't enough overhang of the shingles past the drip edge and instead of forming a drip it would capillary back and run down the drip edge onto the fascia. I got some brown flashing cut into 2.5" wide strips and had a slight down angle bent 1/2" back and slipped the 2" up under the shingles with the angle under the end of the shingles, fixed the problem. Sounds like you want to do something similar, it should work. Flat or steep pitch roof?


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Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783367
06/10/18 08:45 PM
06/10/18 08:45 PM
Joined: Sep 2005
Posts: 5,756
MIchigan
Warstud Offline
Warstud  Offline
Joined: Sep 2005
Posts: 5,756
MIchigan
Need Pics !

Re: Mini gutter or bent flashing for water routing [Re: AZjeff] #4783403
06/10/18 09:18 PM
06/10/18 09:18 PM
Joined: Dec 2002
Posts: 42,135
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,135
New Jersey
Originally Posted By: AZjeff
When out last house was re-roofed there wasn't enough overhang of the shingles past the drip edge and instead of forming a drip it would capillary back and run down the drip edge onto the fascia. I got some brown flashing cut into 2.5" wide strips and had a slight down angle bent 1/2" back and slipped the 2" up under the shingles with the angle under the end of the shingles, fixed the problem. Sounds like you want to do something similar, it should work. Flat or steep pitch roof?


That's it! Fairly flat.

Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783406
06/10/18 09:21 PM
06/10/18 09:21 PM
Joined: Jun 2002
Posts: 6,375
MI
doitmyself Offline
doitmyself  Offline
Joined: Jun 2002
Posts: 6,375
MI
Vented drip edge is expensive, but might get the job done. https://www.google.com/search?q=vented+d...h=923&dpr=1

Buying or making something like masonary drip edge would probably work also: http://estore.masonpro.com/stainlesssteeldripedge.aspx

Both would be slipped under the shingles.

Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783407
06/10/18 09:22 PM
06/10/18 09:22 PM
Joined: Dec 2013
Posts: 26
Kansas, USA
Kansas_Ron Offline
Kansas_Ron  Offline
Joined: Dec 2013
Posts: 26
Kansas, USA
Could you have flashing above the door? https://www.youtube.com/watch?v=hOa8sKZjYrg


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Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783446
06/10/18 10:11 PM
06/10/18 10:11 PM
Joined: Feb 2010
Posts: 4,838
Central Texas
sleddriver Offline
sleddriver  Offline
Joined: Feb 2010
Posts: 4,838
Central Texas
Photo?


1998 Volvo V70 T5 228,880 mi. Original Owner.
M1 10W-30 HM
"It's never a mistake to buy tools, defined broadly. They're not a cost, they're an investment." - J.B. Peterson
Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783576
06/11/18 06:38 AM
06/11/18 06:38 AM
Joined: Sep 2004
Posts: 7,604
Marshfield , MA
andyd Offline
andyd  Offline
Joined: Sep 2004
Posts: 7,604
Marshfield , MA
I use a wallpaper scraper or a masonry chisel to lift tabs without damage. What if the facsia was extended by a 2x4 or even one ripped in half to support the flashing?


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Re: Mini gutter or bent flashing for water routing [Re: sleddriver] #4783601
06/11/18 07:27 AM
06/11/18 07:27 AM
Joined: Dec 2002
Posts: 42,135
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,135
New Jersey
Originally Posted By: sleddriver
Photo?



Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783619
06/11/18 08:07 AM
06/11/18 08:07 AM
Joined: Dec 2014
Posts: 211
USA
dbias Offline
dbias  Offline
Joined: Dec 2014
Posts: 211
USA
Find someone with a metal brake and have them bend you up a small "gutter" out of coil stock. You could also get some regular aluminum fascia, trim it down to size and slip it up btwn the drip edge and the fascia board backwards which would kick the water away a little better


Last edited by dbias; 06/11/18 08:29 AM.

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Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783621
06/11/18 08:08 AM
06/11/18 08:08 AM
Joined: Jul 2015
Posts: 3,874
New England
madRiver Offline
madRiver  Offline
Joined: Jul 2015
Posts: 3,874
New England
1) place some bent flashing under the other flashing and see how it goes.
2) Replace the flashing with a more appropriate size that goes slightly past the trim

I'd avoid the gutter if trees are around and also another issue of routing its water etc.

Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4783955
06/11/18 01:59 PM
06/11/18 01:59 PM
Joined: Feb 2010
Posts: 4,838
Central Texas
sleddriver Offline
sleddriver  Offline
Joined: Feb 2010
Posts: 4,838
Central Texas
Whomever shingled the shed sure did not allow for much overhang. Further, the flashing looks tight to the fascia. Third, photo shows water drops clinging underneath the horizontal "ceiling".

I'd recommend a strip of flashing slid underneath the first course to extend at least 1-1/2".


1998 Volvo V70 T5 228,880 mi. Original Owner.
M1 10W-30 HM
"It's never a mistake to buy tools, defined broadly. They're not a cost, they're an investment." - J.B. Peterson
Re: Mini gutter or bent flashing for water routing [Re: sleddriver] #4784034
06/11/18 03:52 PM
06/11/18 03:52 PM
Joined: Dec 2002
Posts: 42,135
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,135
New Jersey
Originally Posted By: sleddriver
Whomever shingled the shed sure did not allow for much overhang. Further, the flashing looks tight to the fascia. Third, photo shows water drops clinging underneath the horizontal "ceiling".

I'd recommend a strip of flashing slid underneath the first course to extend at least 1-1/2".


Blame the Amish. No, seriously, I saw them do it.

That is exactly my thought process. Unless in lieu of flashing I slide a row of shingles?

Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4784393
06/11/18 10:09 PM
06/11/18 10:09 PM
Joined: Feb 2010
Posts: 4,838
Central Texas
sleddriver Offline
sleddriver  Offline
Joined: Feb 2010
Posts: 4,838
Central Texas
You can get away with trimming the overhang close on the rake; not so much on the fascia. Particularly if thunderstorms are a regular event.

Another option is to slit the metal at the corners, then pry out the "kick" a bit and slide a piece of plastic shim in there. When I re-roofed, I used spacers to prevent the heavy-gauge flashing from making contact with the fascia board. I wanted water to be able to drain on the backside and air to get in there.

Some will saw-curf the bottom of that fascia board to prevent water from hanging down as shown. My own house has square returns rather than plumb cuts.

You can slide a single-shingle under there however metal (galva-lume) will last longer.


1998 Volvo V70 T5 228,880 mi. Original Owner.
M1 10W-30 HM
"It's never a mistake to buy tools, defined broadly. They're not a cost, they're an investment." - J.B. Peterson
Re: Mini gutter or bent flashing for water routing [Re: JHZR2] #4784402
06/11/18 10:20 PM
06/11/18 10:20 PM
Joined: Dec 2002
Posts: 42,135
New Jersey
JHZR2 Offline OP
JHZR2  Offline OP
Joined: Dec 2002
Posts: 42,135
New Jersey
I picked up a 10' piece of 30 degree bent flashing. All my shingles are stuck hard to the current flashing. Is it typical to goop some adhesive to the final edge of th shingles to adhere to the drip edge? Or is it just from heat and asphalt shingles?

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