Intelligent roof drain systems and methods

A roof drain system for use with a roofing membrane of a roof substructure, the roof drain system comprising:

• a plurality of detectors, each of the plurality of detectors including:
• a water seepage detection module configured to be disposed between the roof substructure and a roofing membrane disposed proximate the roof substructure, the water seepage detection module including a water seepage sensor configured to generate a water seepage signal in response to a detection of water seepage beneath the roofing membrane;
• a water level sensor to generate a standing water level signal that includes data representative of a standing water level above the roofing membrane proximate the respective detector;
• and
• control circuitry to:
• wirelessly receive the water seepage signal;
• receive the standing water level signal;
• and
• transmit an output signal that includes data representative of the leak detection signal and the standing water level signal;
• at least one gateway communicatively coupled to the plurality of detectors, the at least one gateway including logic circuitry to:
• determine an average standing water level using data included in the standing water level signal received from each of the plurality of detectors;
• and
• for each of the plurality of detectors:
• determine whether a water level sensor failure has occurred using the determined average standing water level;
• and
• determine whether a roof drain is obstructed using the determined average standing water level.