Many flat roof owners and managers are surprised to learn that leaks from flat roofs often originate not from the roofing material itself, but from exposed duct assemblies extending from HVAC systems. These ducts, when they penetrate the roof, create potential breaches in the roofing envelope. Without proper waterproofing, they can become a significant source of leaks.
At Watertite Roofing, we have perfected a solution for insulating and encapsulating exposed ducts. Our process begins with encasing the ducts in rigid insulation. This not only protects against sharp edges on the steel ducting but also enhances the heating and cooling efficiency of your HVAC system.
Once insulated, we wrap the ductwork in a durable PVC membrane, such as Duro-Last. Using a hot air application, we thermally weld all the seams of the membrane, creating an impermeable seal that effectively bridges the HVAC unit, ducting, and flat roof.
During our roof assessments and quoting process, we routinely identify exposed ducts and include insulation and encapsulation in our roof replacement plans. However, you don’t have to wait for a roof replacement to address this issue; duct insulation and waterproofing can be done at any stage of your flat roof’s life cycle.
By proactively insulating and encapsulating your exposed rooftop ducting, you can prevent water damage and unnecessary repairs, saving you time, money, and frustration in the long run. Let us help you protect your investment and maintain a leak-free facility!
