Duro-Last Commercial Roofing in Aurora, IL

We review available shop drawings, project submittals, warranty papers and prior service records, then inspect visible membrane markings, field seams, prefabricated accessories, edge details and drains. A factory-made flashing component does not confirm that its field tie-in remains sound. We check the welds and transitions where components meet the roof, along with any penetrations added after installation. The report identifies what was confirmed and where records do not match field conditions. Where a panel layout is available, we compare the drawing with field seams and accessories to see whether later work altered the original pattern. Rooftop unit replacements, new conduit and added supports can create new transitions that are absent from the original details. We mark those changes separately and note whether the adjoining PVC remains continuous and properly terminated.

A commercial roof inspection maps visible seams and details by section. If concealed moisture is a concern, an infrared moisture survey can help select test locations. Thermal patterns do not confirm wet insulation without sampling; each core represents its own opening. We record tested areas, untested portions, rooftop equipment and access limits so the owner can see what supports the repair quantity and what still needs review.

Prefabricated accessories do not move water to a drain if the drainage path is obstructed. We check roof drains, scuppers, overflow points and low areas, then note where debris or ponding can hold moisture near a seam. Aurora's warm-season precipitation is near four inches per month from May through September. A recurring water mark after those months deserves comparison with the roof map, but the symptom alone does not establish whether a seam, drain or concealed layer is responsible. A maintenance walk should also record whether roof drains can be reached safely and whether rooftop traffic leaves debris near the outlet. We note a clear drainage path separately from the condition of the membrane, since each can need a different response. Repeat photographs taken from a consistent location make it easier to tell whether ponding or an open detail has changed between service dates.

When water enters the building, around-the-clock emergency response can protect interior operations while the permanent work is assessed. We document temporary dry-in separately, identify the protected boundary and schedule follow-up testing or repair as conditions allow. The roof file should say whether the detail was permanently closed or remains open for monitoring. That distinction helps facilities staff plan the next visit and prevents emergency protection from being mistaken for a completed membrane repair.