Stormwater Roof Drainage Design

This form of roof drainage is preferred if a clean exterior appearance is desired.

Stormwater roof drainage design.

Through dep approval of sew er certifications approval that the city sew er can accept the proposed discharge and. A roof drainage system usually comprises gutters eaves and downpipes. 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.

Many factors affect how quickly water drains off a roof if water drains completely and if the roof is watertight. These will drain to somewhere near the center of the roof and down through the building to underground storm mains or a detention pond. Typical roofing stormwater work roof plumbing work involves a roof drainage system that collects and disposes of stormwater. The new york city department of environ mental protection dep is responsible for the city s drainage plan and stormwater management.

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. Often the floor plan of a building is designed then a roof is fitted over the plan. Native beds established on the green roof at dpr s five borough building on randall s island.