Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage.
Box gutter dimensions.
Measure your gutter across the top from the back where the gutter meets the home to the outer edge.
Learn more how to storm water design for building sites.
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.
Then use the chart below to see what size gutter you need.
Box gutters must be straight no bends.
Code box gutter requirements the minimum width allowed for domestic projects is 200mm.
There are two main common sizes of gutters and one of them is 5 inch.
This building has a parapet wall on three sides and a gutter to be located on an 80 ft 24 4 m side.
Available in 10 lengths.
This six inche commercial box gutter size is often used on warehouses shopping centers and offices.
Practically speaking though a common gutter size is usually selected and downspout spacing is equal for most buildings.
Each section is 10 feet in length.
For most homes this will be a large enough gutter to handle the amount of water washing off of the roof but if you live in a particularly rainy area you will want to opt for wider downspouts to be installed with your new gutters.
See kynar color charts for actual color choices.
Sample problem to size a half round gutter for a build ing located in kansas city mo with a flat roof 80 x 40 ft 24 4 x 12 2 m.
This is most common in the k style gutters.
See photos below most residential gutters will measure approximately 5 inches across the top with the actual opening being approximately 4 5 inches.
5 inch 5 520 square feet.
Downpipe eaves gutter long straight eaves gutters box gutter to rain water head box gutter vertical faces box gutter side o flow box gutter vertical o flow storm water pipe size storm water network overland flow path spitter upstream end custom rain water head.
6 inch 7 960 square feet.
5 inch standard k style gutter shop 5 gutterbrush.
For design purposes and aesthetics let s assume you have selected an 8 gutter.
Box gutters from rutland gutter supply largest selection of copper gutters downspouts and gutter supplies in the usa.
If a roof s various drainage areas call for different size gutters go for the biggest one k style.
This size is ideal for small to medium size commercial and residential projects.
For 20 gutters see industrial box gutter below.
For commercial projects the minimum allowable width is 300mm.