How to install flat roof drains correctly

This a 3D video demonstrating the best flat roof drain system.

Five tips on the correct installation for a flat roof drain

There are several things to keep in mind when it comes to flat roof drains. Not all conditions and flat roofs are the same and therefore not all the rules can be applied equally to every roof.

  • Plan where to locate the drain

It is important to plan a flat roof drain location according to the volume of water and accessibility for maintenance.

  • Calculate the volume of water

To calculate the volume of water that a particular roof drain might receive one must take into account the size of the roof surface plus the highest rainfall in an hour the area has seen in the last 20 years. Once those facts are known, calculating the size and total of drains is easy.

How to prevent leaks on flat roofs?

Follow these steps below to maintain your flat roof to prevent leaks.

Total Time Needed :

30

Minutes

Total Cost:

100

USD

Required Tools:

– Leaf Blower
– Disposable Paint Brush
– Wire Brush

Materials Needed?

– Turbo Poly Seal
– Super Silicone Seal

Steps to take preventing flat roof leaks:

Five Tips on finding and repairing flat roof leaks

Step 1

Make sure all debris is removed from leaf filters on drains (drain strainers)

Plastic Leaf Filters
Replace small leaf filters with larger ones and bigger slots

Step 2

Plastic leaf filters are small and break easily. The smaller the leaf filter, the less fine debris gets through the faster it clogs.

Leaf Blower

Step 3

Use a leaf blower and blow clean the entire roof weekly.
If you have the property cleaned every week, then the same should be done to the roof.
Make sure to get a powerful leaf blower. We use a BG 86 C-E

Gutter with leafs
Remove leaves from gutter

Step 4

Clear gutters from debris at least once a week

Pitch pocket filled with tar. The pipe leading through the pitch pocket will cause leaks

Step 5

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Turbo Poly Seal and Super Silicone Seal

Step 6

Look for cracks around A/C curbs and skylight curbs, vent pipes, pitch pockets and use Turbo Poly Seal or Super Silicone Seal to seal the cracks and to make minor repairs

  • Accessibility

Accessibility is essential. When a flat roof drain gets clogged for some reason, then it is vital that it should be in a location where it can be reached relatively easily. Clogged drain strainer can quickly flood an entire roof, causing extensive damage. It is not advisable to have a flat roof drain close to skylights or low profile objects where water could spill over into when a drain is clogged.

  • Create a basin for the drain

The best flat roof drain is those that are installed in a basin. The purpose of the basin is so it could collect debris around the strainer while water can still sill into the drain through the upper parts of the strainer. Watch the video to understand the concept.

Flat Roof Drains

It is always best to have a professional design your drain placement and size. Sometimes a combination of inner drains, scuppers, and gutters can be used to lead water off a roof.

A drain basin is always the best design but will not work without a proper strainer or filter. In the video above you notice the filter. A high filter is better because when leaves accumulate on the bottom perimeter, the water can still flow over into the drain.

Conclusion

Drains are the heart of a roof, keep the heart clean and protected from debris and you will have a long-lasting roof.

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