Gutter Install - How to slope away from center of run?

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Old 02-07-12, 03:06 PM
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Gutter Install - How to slope away from center of run?

Preparing to install 5” K profile; seamless aluminum.

Seems to me that one of the biggest challenges is to get good gutter slope so as to avoid standing water. Okay, I’m a newbie, but it seems to me that if I want my mitered corners to line up properly – then they need to come together at the same height, yes? So, let’s say I have a rectangular house 30ft x 50ft and four mitered corners – where would the high end of the gutter slope be (downspouts would be near each corner)? It seems to me that if I made the middle of each gutter run the high point (ex 15’ and 25’) – then all my slopes would flow to the downspouts and the miters would all line up nicely (if I allow for difference in lengths). Does this make sense? If so, then I need to “bend” each gutter run at its mid-point so that it will flow down-slope to the corners. How do I do that? Can I do that? Is there some sort of flex joint to join two gutter sections that are angling down away from each other?

I’m not asking what the angle of gutter slant should be or how high up on the fascia I should start.
Just asking for ideas on how to create a slope away from the mid-point of a gutter run – high point at the center of the gutter run – so it slopes down toward corners.

Thanks,
Will
 
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Old 02-07-12, 03:19 PM
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Your gutters will be flexible enough that you will be able to push them up in the middle. The point between downspouts will be highest, downspouts will be lowest. If you are using the brackets that screw on, you will generally have a guy on each end to help hold the gutter, while you are in the middle pushing up as high as you possibly can, then set the screw.

If your fascia is fairly level you can usually measure off it to help you figure out how much slope you are putting on the gutter. Once you have your high point and low point set, use your eye to sight the rest of it as straight as you can so that there are no dips between those two points.

Is there some sort of flex joint to join two gutter sections that are angling down away from each other?
I don't know why you are asking this when you said you are installing seamless gutters. Your only seams will be on each side of your mitered corner pieces. The part you put in BOLD is correct.
 
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Old 02-07-12, 03:52 PM
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Thanks XSleeper.

I wasn't sure how much bend I could get away with without creating a ripple in the sidewalls.

The longest side of my small house is 40 ft.
If I center the high-point bend at 20 ft I probably only need to drop 1/2 inch to the corners.
Based on your advice - that very tiny "bend" (implemented as you described - I won't actually "bend" the gutter at any one point) should not create any concern.

Thanks,
Will
 
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