Roof Gutter Downspout Design

Factors to be considered in the design of roof drainage sys tems are the area to be drained size of gutters downspouts outlets slope of roof type of building and appearance.

Roof gutter downspout design.

Featuring durable vinyl construction this extension can be buried bent or connected to additional sections. Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. 6 inch 7 960 square feet. The maximum accumulation of rainfall occurs when it falls perpendicular to the roof plane.

Gutters will end where the roof no longer slopes downward. Jan 20 2015 explore angelica muhi jarabe s board gutter design on pinterest. Adding additional sections of gutter reduces the length of each section and will reduce the gutter size. See more ideas about downspout gutter gutters.

5 inch 5 520 square feet. Has two adjoining gutters cut on 45. The gutter and downspout size requirement depends upon the number of sections and length of the gutter sections as well as the number of downspouts. If a roof s various drainage areas call for different size gutters go for the biggest one k style.

The first is to make it wide and deep enough to collect all of the rainwater during the hardest rainfall. To the design of the roof drainage system. There are two major factors to consider when deciding a gutter design. For practical purposes the roof gutter depths and areas used are assumed to hold true for all available gutter of a given style top width and material even though differences do occur.

The end part that closes the gutter so that water or stray debris won t flow out. Connects troughs to keep the water flow off the roof and away from the property. The area of roof contributing runoff to each gutter and downspout should be determined. The flows and capacities of the roof gutter and downspouts shown in this design guide are based on actual measurements taken from some of the materials available.

Then use the information below to see what size gutter you need. Use this downspout extension to divert water away from the foundation or connect to drainage pipe and catch basin to control drainage. It has an angled outer wall that directs the flow of water into gutter sections. Design area for pitched roofs the roof area to be drained is a key factor in designing gutters and downspouts.

Connects the gutter to the downspout. The flexible design easily bends and holds its shape and can be extended from 25 in. This spread sheet will help you calculate the gutter width and maximum distance between downspouts based on your maximum rainfall roof area and style of gutter. Also the gutter width in relation to height may also be adjusted.