Roof Rain Gutter Design

Box gutter with rain water head at end of box gutter.

Roof rain gutter design.

Simplified suitable for flattish roofs with little or no vertical faces or steep roofs draining to one side of box gutter only or any roof if you are in a hurry and make the necessary allowances for all catchments. The rain intensity according to table 1 2 rainfall data and drainage factors uses a 5 minute duration for a 10 year or 100 year storm thereby providing a worst case scenario for the downspout and gutter design. 5 inch 5 520 square feet. Types of gutters sectional gutters are sold in pieces and include a lot of the components mentioned above.

With a crush and dent proof design this gutter can withstand extreme temperatures from 40 to 150 degrees fahrenheit. To the design of the roof drainage system. The amerimax k style 10 ft. Featuring a brown color and traditional k style design this gutter will complement your home.

Gutter end caps close off the ends of gutters keeping debris and water from flowing out at this point. Its unique rainhandler gutters louver design allows leaves and debris to blow or wash away. Without a gutter system water will simply fall off the roof and likely form pools near the base of your house. If a roof s various drainage areas call for different size gutters go for the biggest one k style.

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. Choose the 10 year frequency 5 minute rainfall see chart 1. Record this on line 1 of worksheet 1. Roof area to be considered the design capacity for a roof drainage system depends on the quantity of water to be handled.

Label roof or roof segments and calculate. No more destructive ice dams from frozen gutters. Since the roof area would increase as its pitch increases then it would not be advisable to use the plan area of a pitched roof in the calculation of a drainage system ï experience has taught that use of the true area of a pitched roof often leads to oversizing of the rain gutters or gutter downspouts and drains. Rainhandler gutter self cleaning dispersal system eliminates clogged over flowing gutters and downspouts.

Multiply the drainage area by the roof pitch factor and rainfall intensity to find out the adjusted square footage. Vinyl gutter has rust free vinyl construction for durability. A properly designed gutter and downspout system will take water from the roof of your house and direct it away from the house. Vinyl gutter the amerimax k style 10 ft.

Design guide md 1 roof gutter d esign method nrcs engineering maryland october 2004 page 4 roof gutter design instructions 1. For animal waste management use the 25 year frequency 5 minute rainfall. If you re thinking of installing gutters yourself this is a good.