Roof Gutter Dimensions

5 inch 5 520 square feet.

Roof gutter dimensions.

This building has a parapet wall on three sides and a gutter to be located on an 80 ft 24 4 m side. From the table we find that a 5 x5 downspout will discharge 260 gallons per minute. However too large a gutter downspout can look unattractive. The larger a gutter downspout the more water it can drain quickly.

5 inch standard k style gutter shop 5 gutterbrush. 6 inch 7 960 square feet. I denotes rainfall intensity the roof area in square feet sq m. 6 inch 3 840 square feet.

As a general rule egutter recommends for roof areas that exceed 2800 square feet a 6 k style size with a 3 x 4 downspout size would be appropriate. The required width of gutter is therefore 6 in 152 mm and its depth need be only 4 5 in 114 mm in. For design purposes and aesthetics let s assume you have selected an 8 gutter. Half round gutter sizing is based on w 0 0182 la 2 5.

Also assume our guttered eave is 335 linear feet. Sample problem to size a half round gutter for a build ing located in kansas city mo with a flat roof 80 x 40 ft 24 4 x 12 2 m. See galvonic corrosion for more detail. Half round 5 inch 2 500 square feet 6 inch 3 840 square feet.

W is the width in in. Half round adjusted square footage of roof. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. At 1 880 gpm s we will need 8 downspouts to handle the rainfall 1 880 260 8 downspouts rounded up.

5 inch 2 500 square feet. Measure your gutter across the top from the back where the gutter meets the home to the outer edge. You should have enough gutter downspouts to effectively handle the size of your entire gutter system. There are two most common type of residential gutters that we will talk about in this post for reliable roof gutter sizing.

See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches. Five inch k style gutters six inch half round. Most downspouts are rectangular but they can also be round or square. Gutter downspout sizes are 3 to 6 inches.

Then use the chart below to see what size gutter you need.