Home>Discussions>EXTERIORS>Water overshooting gutter - metal roof [again]
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Water overshooting gutter - metal roof [again]

Sorry, my other post keeps saying it is invalid and also when I try to contact the administrator of the forum. :-(

We have had 5" gutters installed and are having problems with water entry into the back of the house. You can see photos here: https://www.flickr.com/photos/[email protected]/ and our roof measurements.

It looks like to me we may need an 8" gutter in places, but the primary problem now is that in even a moderate rain the water overshoots the gutter completely.

Any ideas? We have talked to many gutter people and none have a system to determine what size we need, what shape or how to install them.

Any help or suggestions would be greatly appreciated.

Elizabeth

JLMCDANIEL
Re: Water overshooting gutter - metal roof [again]

From what I can see, it looks like the problem is that the roof sheeting and roofing extends way past the fascia board. The roofing is well past the center point on the gutters. Rather than a bigger gutter size I would suggest you space it out more.

Jack

dj1
Re: Water overshooting gutter - metal roof [again]

Something as simple as a sheet metal dam mounted on the front side of the gutters but from the inside of the gutters, can help directing the water into the gutters.

keith3267
Re: Water overshooting gutter - metal roof [again]

The gutters are mounted too low and to far under the roof. Do not put dams on the front, they will cause water to be directed over the backside and that will lead to rot on the fascia.

dj1
Re: Water overshooting gutter - metal roof [again]
keith3267 wrote:

The gutters are mounted too low and to far under the roof. Do not put dams on the front, they will cause water to be directed over the backside and that will lead to rot on the fascia.

If the installation is correct (CLEAN gutters under drip edge and sloped to allow the water to flow quickly) it's safe to assume that there will be no water splashing on the fascia boards.

Since it would be impossible to change the roof line, what other choices does he have? Install the gutters away from the fascia? - the gutters won't stay up there too long and fall. Install wider gutters? - might be too expensive.

keith3267
Re: Water overshooting gutter - metal roof [again]
dj1 wrote:

If the installation is correct (CLEAN gutters under drip edge and sloped to allow the water to flow quickly) it's safe to assume that there will be no water splashing on the fascia boards.

Since it would be impossible to change the roof line, what other choices does he have? Install the gutters away from the fascia? - the gutters won't stay up there too long and fall. Install wider gutters? - might be too expensive.

Water will splash back, period. The answer would be to install another fascia board over the current one and mount the gutters up closer to the roof.

JLMCDANIEL
Re: Water overshooting gutter - metal roof [again]
keith3267 wrote:

Water will splash back, period. The answer would be to install another fascia board over the current one and mount the gutters up closer to the roof.

DITTO to Keith3267

Jack

ed21
Re: Water overshooting gutter - metal roof [again]

A damn on the front of the gutters would likely be torn off with the gutters by ice and snow.
The gutters from what I've seen are not placed properly and the roof overhangs them too much.

dj1
Re: Water overshooting gutter - metal roof [again]

I hear you, I hear you loud and clear EAST COASTers, our gutters (in the Southwest coast) are for peepee, not for 6" an hour.

JLMCDANIEL
Re: Water overshooting gutter - metal roof [again]
dj1 wrote:

I hear you, I hear you loud and clear EAST COASTers, our gutters (in the Southwest coast) are for peepee, not for 6" an hour.

From what i see on the news you guys don't get any rain at all.

Jack

Thi[email protected]#$!OldHouse
Re: Water overshooting gutter - metal roof [again]

Thank you for all of the responses. You have given me some good ideas.

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