What is the minimum number of roof drains required for an area up to 10,000 square feet?

For an area up to 10,000 square feet, the minimum number of roof drains required is two. This requirement ensures effective drainage of rainwater from the roof, preventing potential pooling or overflow that could lead to water damage or structural issues.

The installation of two drains allows for redundancy; if one drain becomes blocked or is unable to handle the volume of water, the other can still function to prevent water accumulation. This precaution is crucial in maintaining the integrity of the roof and the overall building structure.

Additionally, local plumbing codes often specify the necessity of multiple drains based on roof area to promote proper drainage practices and ensure adequate performance during heavy rainfall. Therefore, choosing two drains helps to adhere to these regulations while also safeguarding the building against possible drainage issues.