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.
Aluminum gutter sizes.
While the thinnest aluminum is the least expensive it s also likely to dent or bend.
They come in 5 inch to 6 inch widths.
Aluminum gutters come in three standard thicknesses 025 inch 027 inch and 032 inch.
Multiply drainage area by 1 3.
Calculate your roof pitch.
They are low maintenance reliable lightweight and easy to install.
For design purposes and aesthetics let s assume you have selected an 8 gutter.
Multiply drainage area by 1 05.
Most times these style gutters are installed with rectangular downspouts.
The front of the gutter is usually curved and resembles crown moulding.
Painted aluminum k style gutters are among the most popular gutter profile for homeowners across the country.
Practically speaking though a common gutter size is usually selected and downspout spacing is equal for most buildings.
12 inches or more.