How Far Does A 89 Foot 6 Inch Gutter Expand

Roof area the locale s rainfall intensity and gutter capacity determine how many square inches of downspout are needed.

How far does a 89 foot 6 inch gutter expand.

Multiplying that number by the local maximum rainfall intensity 6 8 inches per hour yields an adjusted square footage of 7 480 square feet. For a 5 inch k style gutter the square footage should be up to 5 500 sq ft and for a 6 inch k style gutter the square footage should be upto 7 900 sq ft. Aluminum gutters are the most commonly installed gutters in today s market for an average cost of 5 8 00 per linear ft. As for gutter hangers or the support for your gutters the type of gutter and where you live will determine how far apart the gutter hangers are spaced.

Size downspouts to fit the gutter. The brackets typically hold the gutter about 1 2 1 inch away from the fascia board if u type brackets otherwise if screw through type the gutter might be almost up to the fascia board. To put this in perspective a 50 ft run of aluminum gutter subject to a 51 degree change in temperature could expand or contract 401 inches just over 3 8. Downspouts are commonly 2 x 3 inches and 3 x 4 inches in size or 3 or 4 inches in diameter.

50ft x 12 inches 600 inches x 0000131 x 51 degrees 401. They re affordable low maintenance and come in a wide array of colors to choose from. After you have calculated the square footage use following calculations. A square inch of downspout can drain 1 200 square feet of roof during a rain with an intensity of one inch per hour.

One foot of 5 k style gutters holds 1 2 gallons of water. 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. Therefore this roof should be equipped with 6 inch k style gutters. Though a 6 gutter is only an inch bigger it does handle 40 more water.

One foot of 6 k style gutters holds 2 0 gallons of. However they are prone to crack in cold climate and. In fact aluminum can expand or contract 13 1 micro inches per linear foot for each 1 degree change in temperature 1. Doubling the number of downspouts halves the required capacity for each.

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. The back edge of the gutter should tuck up behind the dripedge if you have it otherwise the edge of the shingles should extend well over the back half of the. The most common gutter sizes are 5 inches and 6 inches although 4 inches is available as well. In regions with snow and ice they need to be about 18 inches apart and in areas with little to no snow they can be as far as 36 inches apart.

The over sized downspout installed with these gutters can also handle more debris passing through them.