Stormwater Roof Drainage Design

Stormwater drainage design modern storm water design focuses on three important areas.

Stormwater roof drainage design.

These will drain to somewhere near the center of the roof and down through the building to underground storm mains or a detention pond. Slowing down water flow to reduce flooding or erosion problems downstream retaining water on the property for use in gardens as a natural filtration system. A typical commercial or multifamily residential building will utilize one of the following types of primary roof drainage. The new york city department of environ mental protection dep is responsible for the city s drainage plan and stormwater management.

Often the floor plan of a building is designed then a roof is fitted over the plan. A roof drainage system usually comprises gutters eaves and downpipes. Through dep approval of sew er certifications approval that the city sew er can accept the proposed discharge and. Stormwater is then carried away to either a collection point or to the graded area around the building and flows naturally away from the building.

Roof drainage design by greg burn 1 october 2009 build 114 the roof on a new building needs to be more than just aesthetically appealing and able to keep the building weathertight it must also effectively collect and dispose of rainwater. This form of roof drainage is preferred if a clean exterior appearance is desired. Typical roofing stormwater work roof plumbing work involves a roof drainage system that collects and disposes of stormwater.