Appropriate Gutter Size

Now finally you can find the appropriate gutter size by looking at the following figures showing the relationship between different gutter systems and the roof area they ll be able to drain.

Appropriate gutter size.

Then use the chart below to see what size gutter you need. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. The following guide could help take the guesswork. 5 inch 5 520 square feet.

6 inch 7 960 square feet. 5 inch 5 520 square feet. Rectangular gutter downspouts are available in 2 3 3 4 and 4 5 sizes. The steeper a roof s pitch the more windblown rain it can collect.

Picking your gutter size. 5 inch 5 520 square feet. You can measure pitch with a 2 foot level and a tape measure. 5 inch 2 500 square feet.

If a roof s various drainage areas call for different size gutters go for the biggest one k style. Hold one end of the level against the roof level it and then measure the distance between the roof and the underside of the level at its midpoint which. How to figure the right downspout size. 6 inch 7 960 square feet.

Then use the information below to see what size gutter you need. Roof pitch is very important for right roof gutter sizing. If a roof s various drainage areas call for different size gutters go for the biggest one k style. But don t overlook performance and quality which will over time.