Aluminum Gutter Sizes

Multiply drainage area by 1 3.

Aluminum gutter sizes. For design purposes and aesthetics let s assume you have selected an 8 gutter. 12 inches or more. Calculate your roof pitch. The front of the gutter is usually curved and resembles crown moulding.

They come in 5 inch to 6 inch widths. Multiply drainage area by 1 1. Aluminum gutters come in three standard thicknesses 025 inch 027 inch and 032 inch. While the thinnest aluminum is the least expensive it s also likely to dent or bend.

Multiply drainage area by 1 05. Most times these style gutters are installed with rectangular downspouts. Practically speaking though a common gutter size is usually selected and downspout spacing is equal for most buildings. K style gutters are the most common option and they provide optimum drainage for the majority of homes in most of the u s.

Continuing with our example in the last step we know our gutter downspout system may be subject to as much as 1 880 gallons per minute.