Roof Drains


At this time there are a few distinct kinds of roof water drains and roof drain strainer in Clanton, AL and each one is a specific answer to the wide range of roof types and their drainage concerns. You need to take into consideration the type of roof, its size, and its roof pitch to be able to choose the most suitable drain. You also need to think about the site of the drain, what amount of rainwater is expected and safe practices when choosing a roof drain for a home or business structure.

Hip roofs, dormers, gable and mansard roofs shed water thanks to gravitational force. Flat roofs, alternatively, accumulate water. Unless the water is directed out and away from the roof , it will develop pools that may eventually leak and the accumulated weight will subsequently cause compromising the integrity of the structure. That is the reason that roofs with a pitch of below two percent ought to have roof drains situated in the lowest areas on the roof in which water puddles and should be evenly spaced all throughout the roof surface.

Roof Drain Kinds


There are a number of distinct alternatives of roof drains. They generally fall into two categories: pitched roof drains and flat roof drains. Pitched roof drains normally consist of gutters that collect rainwater which passes by means of gravity to the roof periphery. Gutters direct this water towards downspouts which direct the water flow down and far away from the structure or into sewers. Flat roof drains can be one of three main types: scuppers, inner drains or siphonic drains.

Roof Drain Scuppers


Scuppers are situated on a roof's periphery. They can also be put in on a balcony or terrace. Small holes are cut into the side of the roof structure so rain water can flow out and drain the roof top. Scuppers can hook up to a downspout, or can be extended so that water is guided off of the building sides and foundation.

Inner Roof Drains


There are quite a few different types of inner drains for flat roofs. These are positioned at low spots on the roof and attach to interior drainage pipes that drive water outside or in to a sewer system. Many styles of internal roof drains have domes, strainers or covers which keep trash from obstructing the roof drain pipe. These kinds of drains work via gravitational force funneling standing water through the roof drain system. They can be 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 permits both air and water to enter the drain system creating pipe space occupied by both air and water. By adding an engineered baffle to the sump of the drain body it produces a siphonic drain which eliminates air from the system and allows for smaller sized pipe diameters . When all air is eliminated, a negative air pressure in the tail portion of the drain is set up which pulls water off the roof siphonically. Although used primarily for flat roofs, siphonic drains can also be installed on angled roofs.

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