Gutter Slope Per Foot

This means that your gutter should be a half inch lower in height at every 10 foot mark until you reach the downspout.

Gutter slope per foot.

Ranch house with roof of 5 12 pitch 48 feet long with a small gable extending out over a porch at one end. Your supplier should have these simple facts or at least a brochure at the. 1 sq in downspout cross section per 100 sq ft of roof drained. Rules of thumb for gutters.

So if you have a 25 foot section of guttering you should set the downspout end of the gutter 5 8 of an inch lower 1 4 x 2 5 5 8 than the other end. For spans longer than 40 feet it s wise to have a downspout on each end and start the high spot of the gutter in the center. There are two factors that go into determining gutter position on the eave the pitch of the gutter and the roof slope. Plenty of rain but not usually much snow.

I m reading a lot of different recommendations for the pitch slope of gutters on fascia anywhere from 1 8 per foot to 1 4 per 10 feet or to completely level. Max run per downspout of 40 feet. Gutter can be run level for appearance but addition downspout will be necessary see section on proper gutter and downspout sizing. So what s the ideal amount of slope for your gutters.

The standard is about inch per 10 feet. Increasing the pitch increases a gutter s handling capacity but the gutter may look askew over a long run. Gutter should be pitched 1 16 or greater per foot for proper drainage. For rainy climates where gutters will handle a larger amount of water for long periods they should have a maximum distance of 18 inches apart between them.

As a general rule gutter slope is set at 1 4 inch per 10 feet of guttering. The above recommendations assume that you have properly sized downspouts every 40 feet. I live in climate zone 4a in virginia. As with gutters a downspout s capacity must match or exceed the expected runoff.

At the ends of the gutters are 4 inch diameter corrugated aluminum downspouts 1 75 per linear foot which were ordered in white to match the house trim. Slope 1 8 inch per running foot. If you live in a warm place with sporadic rain you can hang gutter hangers close to the middle of the gutter with a spacing of no more than 36 inches or three feet apart from the center. For example if you have 30 feet of guttering the calculation is 1 4 x 3 0 75 i e.

Modern roofing care and repair creative homeowner press. Most contractors tend to set the slop at one quarter inch per ten feet of guttering.