There are a few different varieties of roof water drains and roof drain strainer in Auburn, AL and each one is a specific solution to the wide range of roof styles and their drainage challenges. You should take into consideration the kind of roof, its size, and the roof pitch to be able to select the correct drain. You also should think about the location of the drain, what amount of rainwater is expected and safe practices when selecting a roof drain for a residence or business structure. Gambrel, dormers, hip and gable roofs shed rainwater water thanks to gravity. Flat roofs, alternatively, accumulate rain water. Until the water is guided out and away from the roof structure, it will develop pools that may eventually leak and the amassed weight may subsequently result in damage to the structure. That is why roofs with a pitch of under 2% ought to have roof drains situated in the lowest spots on the roof where water puddles and need to be uniformly spread all throughout the roof surface.
Types of Roof Drains
There are a number of distinct alternatives of roof drains. They basically fall into two groups: pitched roof drains and flat roof drains. Pitched roof rainwater drains normally comprise gutters that accumulate rainwater that passes by means of gravity to the roof periphery. Gutters direct this water towards downspouts which route the water flow down and far 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 the roof's perimeter. They can also be installed on a balcony or terrace. Small openings are cut into the side of the roof structure so rain water can empty and drain the roof top. Scuppers can connect to a downspout, or can be extended to make sure that water is directed 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 places on the roof and connect to inner drainage pipes that route water outside or into a sewer system. Several models of internal roof drains have domes, strainers or covers that keep trash from blocking the roof drain pipe. These kinds of drains operate via gravitational force funneling standing water through the roof drain system. They are constructed from PVC, cast iron or cast aluminum.
Siphonic Roof DrainsSiphonic roof drains are a more efficient substitute for gravity drainage. Standard flat roof drainage permits both air and water to enter the drain system creating pipe space which is occupied by both air and water. By adding an engineered baffle to the sump of the drain system it produces a siphonic drain that removes air from the system and allows for smaller pipe diameters . When all air is removed, a negative air pressure in the tail piece of the drain is set up which draws rainwater off the roof siphonically. Though used mainly for flat roofs, siphonic drains can also be set up on angled roofs.
If you need more information about flat roof drain or roof drain strainer in and around Auburn, Alabama, give us a call. We'd be glad to help.