Why it matters to you
A Greater Houston rooftop unit works through a long cooling season in direct sun, with about 111 days a year at or above 90°F at IAH, so filters, coils, belts and drains wear steadily. Because the unit is out of sight on the roof, problems often go unnoticed until occupants complain.
Practical guidance
Building owners should keep a maintenance log for each unit and provide safe roof access for technicians. Electrical, refrigerant and gas-heat work on an RTU requires a TDLR-licensed technician.