Rooftop HVAC units are commonly installed on commercial buildings. When the equipment is installed on an existing roof, or an older unit is replaced, it’s important to take steps to prevent damage to the roof.
HVAC units can increase the risk of water leaks where the mounting brackets and lines penetrate the roof. These potential leak points can go undetected during a roofing inspection while the damage occurs underneath. It’s important that the HVAC installer understand the potential problems with rooftop installation and that regular, professional maintenance be performed to avoid potential problems
Another common issue with rooftop HVAC equipment is condensation. In many cases the condensation discharges directly onto the roof, where it can lead to water ponding and increasing risk of damage over time as the moisture seeps into and weakens the roofing structures. The moisture can also cause staining and mold growth. For this reason it is recommended that condensation lines be directed to a nearby roof drain.
If HVAC technicians are working on the roof with machinery it is recommended that you have a qualified roofing contractor oversee the work to ensure that the integrity of the roof is maintained during and after the work is performed.
When installing new HVAC equipment on your roof, always contact a roofing professional to ensure that curbs, drainage lines, tubing, electrical lines and other roof modifications are made with the goal of minimizing potential damage to the roof.
For all your commercial roof inspection, repair and maintenance needs, call The Roofing Company, we are here to help.