Appropriate Gutter Size

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

Appropriate gutter size.

But don t overlook performance and quality which will over time. 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. 5 inch 5 520 square feet. Installing the right sized gutter downspouts not only promotes efficient drainage but it can also save you money in expensive repairs by having the capacity to drain quickly.

Rectangular gutter downspouts are available in 2 3 3 4 and 4 5 sizes. 6 inch 7 960 square feet. How to figure the right downspout size. Choose the right gutters there is so much to consider when choosing new gutters including shape material and cost.

5 inch 5 520 square feet. 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.

The following guide could help take the guesswork. If a roof s various drainage areas call for different size gutters go for the biggest one k style. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. Roof pitch is very important for right roof gutter sizing.

The steeper a roof s pitch the more windblown rain it can collect. Then use the chart below to see what size gutter you need. 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. Then use the information below to see what size gutter you need.