Understanding the existing flat roof
Commercial flat roofs can use foam, coatings, membrane sheets or built-up layers. They all need drainage and sound details where the roof meets walls and equipment. Before choosing a repair, identify the existing material and check what is happening beneath the visible surface.
Finding the cause of a leak
A ceiling stain may be some distance from the water entry point. We look at seams, drains, flashing and previous repairs to trace the likely path. The inspection should also explain where moisture or access limits mean more investigation is needed.
Repair, restore or replace?
A coating or restoration system may suit a roof whose underlying layers are sound. Wet insulation, loose material and unstable decking need to be addressed first. If failures are spread across the roof, compare the value of more repairs with replacement.
Comparing commercial estimates
Ask the estimate to cover cleaning and preparation, damaged layers, drainage and work around rooftop equipment. It should name the proposed materials, explain access and tenant protection, and say how unexpected damage will be documented and approved. Those details help you compare the work, not just the total price.
