Gutter Drainpipe Dimensions

Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.

Gutter drainpipe dimensions.

But houses with big steep roofs or those located in climates prone to heavy downpours may need wider gutters and extra downspouts to keep rainwater from overflowing. Five inch k style gutters or 6 inch half rounds the most common residential sizes are able to handle the rainfall on most houses in most parts of the country. The larger a gutter downspout the more water it can drain quickly. 6 inch 7 960 square feet.

It also comes in sizes 2 3 and 3 4. The sizes available in this style are 3 4 5 and 6. On chart 1 1 find the vertical line representing l 40 12 2 m. Under the sdr standard the actual thickness of the pipe wall is determined by dividing the pipe diameter by the index number thus a 4 sdr 20 pipe would have a wall thickness of 4 20 0 2.

This type of down spout is considered the standard downspout style in households and is used with a 5 k style guttering system. Sdr indicates the pipe is made to the size dimension ratio standard. Gutter downspout sizes are 3 to 6 inches. However too large a gutter downspout can look unattractive.

Most downspouts are rectangular but they can also be round or square. Round downspouts come in various sizes and colors and mostly used with half round gutters. If a roof s various drainage areas call for different size gutters go for the biggest one k style.