Roof Gutter Dimensions

5 inch standard k style gutter shop 5 gutterbrush.

Roof gutter dimensions.

From the table we find that a 5 x5 downspout will discharge 260 gallons per minute. 6 inch 3 840 square feet. Half round adjusted square footage of roof. See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches.

I denotes rainfall intensity the roof area in square feet sq m. 6 inch 7 960 square feet. This building has a parapet wall on three sides and a gutter to be located on an 80 ft 24 4 m side. If a roof s various drainage areas call for different size gutters go for the biggest one k style.

The larger a gutter downspout the more water it can drain quickly. There are two most common type of residential gutters that we will talk about in this post for reliable roof gutter sizing. At 1 880 gpm s we will need 8 downspouts to handle the rainfall 1 880 260 8 downspouts rounded up. Most downspouts are rectangular but they can also be round or square.

5 inch 2 500 square feet. Then use the chart below to see what size gutter you need. Also assume our guttered eave is 335 linear feet. You should have enough gutter downspouts to effectively handle the size of your entire gutter system.

Five inch k style gutters six inch half round. For design purposes and aesthetics let s assume you have selected an 8 gutter. 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. Half round gutter sizing is based on w 0 0182 la 2 5.

Measure your gutter across the top from the back where the gutter meets the home to the outer edge. W is the width in in. Metal corrosion issues all gutter and components must be the same to prevent electrolysis or electrical corrosion. When you are considering what kind of gutters to get keep in mind that different gutter shapes have a significant impact on the capacity of the gutter.

However too large a gutter downspout can look unattractive. The required width of gutter is therefore 6 in 152 mm and its depth need be only 4 5 in 114 mm in. Half round 5 inch 2 500 square feet 6 inch 3 840 square feet. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.

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.