How Many Linear Feet Of Gutters Do I Need

As with gutters a downspout s capacity must match or exceed the expected runoff.

How many linear feet of gutters do i need.

Then use the information below to see what size gutter you need. If you have a high pitched roof multiple storeys or a complex architectural gutter design your installation cost will be 15 25 depending on the increased scope of work. Cost of steel gutters and downspouts. If a roof s various drainage areas call for different size gutters go for the biggest one k style.

Then measure downspout lengths too typically about 14lf for first floor plus about 10 12 additional feet for each story above that per downspout so your second story roof downspouots would likely be about 24 26 feet long including bends to reach back to house corner and runout at the bottom. Best practice is to have a downspout on each end of each roof edge except for porch roofs less than 10 feet long where a second downspout would be hanging down in free air rather than along the. 5 inch 5 520 square feet. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.

The above recommendations assume that you have properly sized downspouts every 40 feet. If the adjusted square footage is equal to or less than 5 520 feet 1 680 m choose 5 in 13 cm k style gutters. Keeping gutters in good condition is more important than many people realize. If the run is more than 35 feet long some specialists recommend installing the high point of the system in the middle and sloping the gutter downward in both directions to downspouts on both ends.

If we have to sum it up in a single rule gutters need a downspout around every 30 to 40 feet. 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. Installing new gutters costs 10 12 per linear foot for a basic project over 50 feet. Two hundred linear feet of copper gutter plus five downspouts at an average of 10 feet each will set you back at least 6250.

If the adjusted square footage is equal to or less than 2 500 feet 760 m choose 5 in 13 cm half round gutters. Galvanized versions are treated to resist corrosion. Use the chart below to figure out how many extra downspouts you need. 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 most homes this means installing spouts at either end of a gutter section. From time to time rain gutters wear out and must be replaced. Not only can runoff from a roof ruin landscaping next to a building it may cause erosion that will damage the foundation. At 8 19 per linear foot steel gutters and downspouts are as sturdy as copper for a moderate price.

For square footage up to 3 840 feet 1 170 m use 6 in 15 cm half round gutters.