Proper Rain Gutter Slope

If adding a rain barrel.

Proper rain gutter slope.

For example if you have 30 feet of guttering the calculation is 1 4 x 3 0 75 i e. Gutter can be run level for appearance but addition downspout will be necessary see section on proper gutter and downspout sizing. Set a rain barrel on top of the concrete pavers. 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.

Measuring the roof and purchasing materials 1. There are two factors that go into determining gutter position on the eave the pitch of the gutter and the roof slope. Rain gutters should be attached to the fascia and run the. Attach a short length of downspout to the.

Calculate the gutter slope by dividing the length of the gutter needed by 10. Next place a ladder at the left side of the house and measure from the roof down to the gutter. This means that your gutter should be a half inch lower in height at every 10 foot mark until you reach the downspout. Install a diverter in the downspout positioning it even with the top of the rain barrel.

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. For example if the gutter is 16 feet long the end near the down spout must be 1 inch lower than the starting end. First determine the location of each one of your downspouts. Purchase at least the total length of gutter along with additional materials.

This means the downspout end of the gutter should be set 3 4 of an inch lower than the other end. Measure the length of the roof that you re working on. Then fasten one end of the string at the highest point of the gutter and the other at the spot where the downspout will be. Set two 2 inch thick concrete pavers on the ground directly below the downspout outlet.

The minimal slope needed for proper gutter drainage is 1 25 cm 1 4 inch for every 3 metres 10 feet of gutter. The standard slope for rain gutters is half of an inch for every 10 feet. Gutter should be pitched 1 16 or greater per foot for proper drainage. Head to a home improvement store for.

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.