Roof Drains


There are a number of different types of roof water drains and roof drain pvc in Jacksonville, AL and each is a specific solution to the variety of roof styles and their drainage concerns. You should consider the kind of roof, its dimensions, and its roof pitch to be able to pick the right drain. You also should take into account the location of the drain, how much rainwater is expected and safe practices when choosing a roof drain for a home or commercial structure.

Gambrel, dormers, hip and gable roofs shed rainwater water thanks to gravity. Flat roofs, alternatively, collect water. Until the water is directed out and away from the roof , it will most likely develop pools that could inevitably leak and the accumulated weight will subsequently cause structural damage. That is the reason that roofs with a slope of below 2% ought to have roof drains positioned at the lowest places on the roof where water pools and need to be evenly spread all throughout the roof surface.

Types of Roof Drains


There are a number of different alternatives of roof drains. They basically fall into 2 categories: pitched roof drains and flat roof drains. Pitched roof drains normally comprise gutters which accumulate rainwater which travels via gravity down to the roof edge. Gutters direct this water in the direction of downspouts which route the water flow down and away from the building or in to sewer lines. Flat roof drains are one of three main types: scuppers, inner drains or siphonic drains.

Roof Drain Scuppers


Scuppers are situated on a roof's perimeter. Scuppers can also be placed on a balcony or terrace. Small holes are cut in the side of the roof structure so that water can empty and drain the roof surface. Scuppers can connect to a downspout, or can be lengthened to make sure that water is directed away from the structure sides and foundation.

Interior Roof Drains


There are many types of inner drains for flat roofs. They are positioned at low places in the roof and connect to inner drainage pipes that route water outside or into a sewer system. Many versions of inner roof drains have domes, strainers or covers which prevent debris from blocking the roof drain pipe. These kinds of drains work via gravity funneling pooling water thru the roof drain system. They are made of PVC, cast iron or cast aluminum.

Siphonic Roof Drains

Siphonic roof drains are a more efficient alternative to gravity drainage. Traditional flat roof drainage allows both air and water to enter the drain system creating pipe space occupied by both air and water. By incorporating an engineered baffle to the sump of the drain system it produces a siphonic drain which removes air from the system and allows for smaller sized pipe diameters to be used. When all of the air is eliminated, a negative air pressure in the tail portion of the drain is established which pulls rainwater off the roof siphonically. Although used primarily for flat roofs, siphonic drains can also be set up on pitched roofs.

If you need more information about flat roof drain or roof drain pvc in and around Jacksonville, Alabama, give us a call. We'd be glad to help.