Flat Roof Drainage Plan

Select number of roof drains and calculate the roof area sloped to each drain.

Flat roof drainage plan. There are roof coating products available if there isn t enough slant or slope to accomplish this. The one challenge with flat roofing is ensuring proper drainage. These are the three types of drainage systems that work best for flat roofs. One of the main issues on a roof happens when the roofing.

This drainage system is composed of drains placed at intervals near the center of the roof and an internal network of gutters and pipes that move the water to the exterior of the building. There are three types of drain systems commonly used on flat roofs. Unlike other roofing types that are slanted or sloped to allow water to drain automatically flat roofs need a built in drainage system to help remove moisture and debris. Each of these systems has its own pros and cons.

Make sure that the roofing material is attached to the drain. Poor drainage can lead to serious issues with flat roofing from leaks to structural damage. Of course the best designed flat roof has the correct amount of pitch to drain the water off naturally. Your building and location can help determine which drain will fit your roof needs.

Ipc provides four steps to size the roof drains on a building. The drains are often topped by a strainer that prevents leaves and debris from getting into the pipes. Size horizontal storm drainage piping. A major maintenance issue shared between all types of roof drains is debris removal.

Using tools from the international plumbing code ipc it s not that hard. Inspect the roof surface and roof drains on a regular schedule to find and clear away any debris clogging the drains.