Commercial Roofing
A Duro-Last roof is a PVC membrane assembly, and its prefabricated details still need to fit the building's curbs, edges, drains, and penetrations. In Edinburg, TX, we inspect those connections along with seams and the layers beneath the sheet before recommending repair or replacement. Edinburg's heat-safety calendar spans May to October, a period when surface temperature and work timing matter for preparation and welding. A commercial roof inspection records the actual material, repair history, and any moisture boundary rather than treating a product name as a condition report.
Factory-prepared corners, curbs, and other details can reduce field fabrication, but they still have to match the roof opening and the surrounding membrane. We check fit, seam continuity, termination height, and the substrate at each transition. A detail can be correctly made and still fail if it is displaced, poorly tied into the field sheet, or surrounded by wet material. The PVC roofing system should be reviewed as a continuous water-shedding surface, from the field through the edge and down to drainage.
We look for open welds, punctures, loose cover strips, damaged flashing, and movement around service equipment. A later contractor may have added a pipe or support that changes the original layout. We document the current condition and mark any part that needs a closer test. If an older roof has been overlaid or repaired with another membrane, we identify those transitions before selecting materials. A clean, dry test area helps confirm that the proposed repair can bond. Where records do not settle which layer is present, we note the uncertainty and use an approved opening only when it changes the scope.
Dolly's wind and damage reports covered populated parts of Hidalgo County: gusts of 50 to 70 mph and minor impacts were recorded in a group that includes Edinburg, Pharr, and McAllen. After tropical wind, we inspect perimeter securement, corners, edge metal, penetrations, and rooftop equipment. A loosened termination can admit water even when the center of the membrane appears intact. The event is regional context, not proof of damage at a specific building. A wind-damage inspection follows the membrane into transitions and shows whether the issue is confined to one detail.
Heavy rain can expose a drain or overflow problem that looks like a membrane leak. We check scuppers, strainers, low areas, and the route water takes toward the outlet, then inspect nearby seams and curb corners. If the roof has standing water, we record its location and determine whether slope, blockage, or a depressed area is involved. For an active leak, we trace the path from the interior sign back to the roof. That keeps a repair from being placed over the ceiling stain instead of the opening that admitted water.
A stain, discoloration, or seam shadow does not by itself show whether insulation below the membrane is wet. We compare interior evidence with roof slope, penetrations, and deck joints, then use readings or an approved opening to check the layers. An infrared moisture survey can guide follow-up when the visible evidence is scattered, but the repair boundary depends on confirmation. We mark test points on the plan and photograph what is removed.
During the July 2020 Hanna event, Edinburg saw wind and flood impacts, including roof-shingle loss and street flooding. Commercial membrane roofs differ from shingle roofs, but the local event reinforces a useful post-storm check of drainage, edges, and water entry. We still inspect the Duro-Last assembly itself. If the insulation is dry around one penetration, a field repair may remain limited. If moisture extends under several seams, we show the larger boundary and pause before closing the surface. The owner can see which layer is affected and why removal is included.
A patch can work when the PVC around the failure is sound, compatible, and dry enough for proper preparation. We clean the surface, check the weld, restore the flashing, and verify the finished edge. A seam repair addresses a defined separation; it will not correct wet insulation or weak attachment elsewhere. When leaks repeat across different roof areas, we inspect the pattern and determine whether the field, transitions, or drainage are driving the problem.
Roof recover and replacement are separate choices. A recover may preserve a suitable existing assembly, but added thickness can alter drain height, curb clearances, and perimeter transitions. Wet or unstable layers should be addressed rather than covered. We compare access, deck condition, removal, rooftop equipment, and the occupied space below before recommending a larger scope. A repair program may address several local details; if the membrane or substrate has broad failure, we compare it with a recover assessment or replacement. The photos identify the work boundary and any remaining area that needs testing. We also note roof height, equipment clearance, access, and the protection needed below the active section. Those conditions affect staging and duration even when the membrane repair is small. If removal reveals a damaged cover board or deck, the crew documents the added condition and reviews the change before proceeding.
Closeout photographs should capture the original defect, prepared surface, repaired seam or detail, and nearby drainage. We list materials, test locations, removed insulation, and items that need another check. The record gives a facility director a way to compare future conditions at the same curb, drain, or roof edge. For properties near the Edinburg north commercial corridor, access still depends on each building and its operating schedule; the area name does not determine staging or roof layout.
A service schedule can catch debris, added penetrations, or movement after other trades use the roof. When a portfolio includes different membranes, a GAF system and Soprema assembly have their own surface preparation and tie-in requirements. We record each roof separately, coordinate access with staff, and keep active work areas protected. Emergency response is available at all hours, every day of the week and on holidays, when water entry needs immediate attention. The closeout states what was restored, what remains outside scope, and what condition should trigger another inspection visit.
No. We inspect how each detail fits the roof, whether seams remain closed, and if movement or later trade work has changed the connection. The surrounding membrane and substrate still determine what repair is needed.
A patch is appropriate only when the surrounding PVC is sound and the moisture boundary is understood. If wet insulation, broad seam failure, or unstable attachment is present, we show that condition before recommending a larger scope.
We prepare a suitable test area and check the weld with the system-appropriate method. Surface temperature, cleanliness, and moisture affect preparation, so the seam is inspected before the repair is extended.
Yes. We inspect drains, scuppers, overflow routes, edges, and transitions, then compare them with interior signs. In Edinburg, Hanna left wind damage and street water in July 2020, so drains and edges go first on the post-rain walk.
We record service paths and discuss how new supports, cables, or equipment should be handled. A later inspection checks penetrations and seams affected by that work before water reaches the interior.