Large flat roofs and rooftop equipment
A big-box store or shopping plaza has a lot of roof to maintain. Rooftop heating and cooling units, vents and skylights are all penetrations that must be flashed and sealed. Service crews walk the roof often, and foot traffic can wear a membrane.
- Walkway pads protect the membrane along routes to equipment.
- Curbs and pipe boots are common places for leaks.
- Drains and scuppers need clearing, especially in autumn.
- Seams and edges should be inspected after each winter.
A written inspection each year helps managers plan repairs before leaks affect stock or tenants.

