Commercial Roofing
A Johns Manville roof can include single-ply membranes, insulation, or asphalt-based components, and each layer changes the repair decision. In Edinburg, TX, we identify the assembly before selecting a patch, recover, or replacement scope. We inspect seams, perimeter securement, penetrations, drains, and the condition below the surface. Edinburg enters its sustained heat-safety period in May, and it continues through October. Exposed roof materials and sealants carry that solar load. That makes field condition more useful than a product label alone. A commercial roof inspection records material, moisture clues, and any opening needed to confirm the layers.
We start with the roof plan, installation records, and what can be seen at edges and penetrations. A membrane may sit over insulation and cover board, while an older roof can contain previous repairs or a recover. We look for changes in sheet, surfacing, attachment, or flashing that reveal different work periods. If those clues do not settle the system type, a controlled test opening may be needed. The TPO system and the modified-bitumen assembly use different seam and repair approaches, so identification comes before material selection.
Insulation condition can matter as much as the membrane. A compressed board may affect slope, a wet section may spread beyond an interior stain, and a loose cover board may compromise a repair bond. We check around drains, curbs, and transitions where water or trade traffic can concentrate. The report distinguishes visible surface wear from conditions verified below it. When a roof has several layers, we note which one is current and where earlier work remains, rather than treating the whole field as one uniform system. That record helps the facility director compare options without assuming every Johns Manville component is still present.
Open laps, failed flashing, punctures, loose terminations, and displaced edge metal can admit water or allow wind to work beneath the assembly. We inspect each defect with its nearby membrane and substrate, then test whether the boundary can be repaired. Hanna reached Edinburg in July 2020 with wind and flood impacts, including missing roof shingles and inundated streets. For commercial roofs, that makes water paths, drains, and exposed transitions useful post-weather checks; it does not establish a defect on a specific property. A flashing repair should restore the connection at the curb or wall, not merely cover the visible opening.
The membrane's age is not the only question. A roof with isolated damage and dry insulation may accept a limited repair, while repeated seam separation or moisture across several bays can call for a wider assessment. We trace the leak backward from interior signs, inspect upslope details, and mark test points. If the water path reaches rooftop equipment or a roof-to-wall transition, we examine the fastening and flashing as part of the same assembly. That is how the repair boundary follows the evidence rather than the outline of a ceiling stain.
Repeated heat can dry and embrittle exposed sealants, while rain tests the low points and drainage details. The Rio Grande Valley heat-safety period covers May through October. We schedule inspection and installation windows with surface condition and crew exposure in mind, then confirm that a test area is clean and dry before a membrane weld or adhesive repair. On systems with a coating, we check adhesion and substrate compatibility first. A coating restoration can protect an eligible roof, but it cannot correct wet insulation or a seam that remains open underneath.
The Valley does not see large hail routinely, yet the McAllen-Edinburg-Mission-Pharr metro was crossed by large hail in spring 2012. After a severe hail event, we inspect exposed equipment, metal edges, penetrations, and membrane areas for impact-related changes. The event is regional context; the inspected roof determines whether damage exists. We photograph marks that can be distinguished from ordinary weathering and note where closer review is needed. Where the roof remains dry and intact, the report says so. Where an impact has split a detail or damaged a curb, we define the repair and check nearby layers for moisture.
A recover can be considered only when the existing assembly is stable, the deck can support the added work, drainage remains adequate, and moisture does not need removal. We inspect attachment, insulation, wet areas, height at edges and doorways, and the way added thickness would meet equipment or adjacent roofs. A repair scope may restore a localized area, while broad loss of bond or moisture can make replacement the better comparison. We do not recommend covering conditions that should be exposed and corrected.
Cost and duration depend on removal, deck repair, staging, roof height, equipment congestion, and whether the building can be divided into safe work zones. If the scope changes after opening a test area, we photograph the condition and review the added work before proceeding. For a property manager overseeing roofs in Edinburg and McAllen, a roof asset record can distinguish the assemblies and priorities without assuming they share the same failure. The decision should name the material retained, the area removed, and the detail that will be checked at closeout.
Closeout should show the repaired seams, flashing, drainage path, and any material removed or retained. We include photographs that let the facility director locate each detail later, plus notes about any area needing another test. A maintenance visit can check drains, rooftop additions, and exposed transitions after other trades return to the roof. When a portfolio includes different manufacturers, comparing a GAF roof assembly with Carlisle SynTec work begins with the roof in place, not a shared assumption about compatible details.
We coordinate access and protection with staff when work occurs over occupied bays. Equipment moves, deliveries, and interior operations can shape how the roof is divided into phases. The crew identifies safe access, isolates the active work area, and tells the facility contact when a condition requires a pause. Emergency response is available at all hours, including weekends and holidays, when water entry cannot wait for a routine visit. The closeout then states what was completed, what remains outside scope, and which inspection would be useful next. That is a practical record of the roof condition, not just a list of installed materials.
We review available installation records and inspect exposed edges, seams, and transitions. If an overlay or later repair hides the original layers, we identify what can be confirmed and use a controlled opening when the assembly affects the repair choice.
A repair is viable when the surrounding material is compatible, dry, and able to accept a sound tie-in. We inspect the seam and substrate, then define any moisture boundary before deciding how far the work should extend.
No. A regional event sets an inspection window, not the scope for an individual roof. The 2012 event affected the McAllen-Edinburg-Mission-Pharr metro, and our review checks the actual membrane, equipment, metal, and flashing.
It can remain when testing and roof conditions support that choice. If readings or an approved opening show wet or unstable material, we map the affected area and include removal in the reviewed scope.
We compare the verified moisture, attachment, substrate, drainage, access, and work limits for each option. The photo record identifies which condition supports the recommendation and what needs a test before pricing is final.