Commercial Roofing in Passport Business Park, Arlington, TX

Commercial roof repair in Passport Business Park near DFW Airport: rooftop curb and equipment flashing, PVC repairs, wet insulation checks and clear photo records.

Passport Business Park is a 598-acre master-planned development at the south end of DFW Airport near SH 183, set aside for logistics, industrial and office buildings. Roofs out there tend to be large and low-slope, with plenty of rooftop equipment: HVAC units, exhaust fans, vents and sometimes solar or communications gear. Each of those sits on a curb or support, and the flashing around them is where many leaks begin.

We inspect the curbs and flashing you are worried about, figure out what failed and write an estimate that separates the roofing work from anything your HVAC contractor or another trade needs to handle.

We check each curb in the problem area. Is the membrane flashing still bonded to the curb, or has it pulled away at the corners? Is the counterflashing loose or missing? Is the curb itself solid, or is the wood rotted or the metal rusted? Does the unit sit tight on the curb? Was a newer unit set on an old curb that does not quite fit? We also check equipment supports, pipe stands and conduit, since they often sit on pads or blocks that wear through the membrane over time.

We also handle curb work for commercial roofing in Euless and provide roof service in Grapevine, each building inspected on its own.

Our rooftop curb and equipment estimate lists the roof repair separately from work that belongs to another trade, such as lifting a unit, rebuilding a curb or sealing a cabinet. If a leak near a unit turns out to be a condensate line or a clogged drain pan, we say so. Those leaks look a lot like roof leaks from inside.

New curb flashing has to bond to the membrane around it. We confirm the roof system and check the sheet near each curb, which usually takes more wear than the rest of the roof because technicians kneel, set tools and walk there.

For PVC roofing, we clean the existing membrane, weld new PVC flashing up the curb and onto the field, add corners and probe the welds once they cool. Older PVC can stiffen in the sun, so we run a test weld first. A failed test weld means cutting back to better PVC.

Nearby seams get checked too. An open seam a few feet away can carry water to the curb and make it look like the flashing failed.

Curb height matters too. Flashing needs to run high enough up the curb to stay above standing water and wind-driven rain. If a roof has been recovered, the curbs may now be too short to flash properly. Raising a curb is a bigger job that usually involves the HVAC contractor, so we point it out up front rather than mid-project.

A curb that has leaked for a while usually leaves wet insulation around it, and sometimes rotted wood in the curb itself. Wet insulation loses its R-value and can rust the steel deck. If we see soft spots, staining or high moisture readings, we open the area or cut a core to check. Rotted wood and wet insulation are replaced before the new flashing goes on.

On an aircraft hangar roof, we coordinate openings with the facility manager. Aircraft and tooling may be parked right below, and hangars often have strict rules about debris, dust and anything falling from the roof.

A core at one curb tells us about that curb only. Anything unexpected under the membrane gets photographed and discussed before we close up.

Most curb repairs need the HVAC contractor at some point. They may need to disconnect and lift the unit so we can flash the curb properly, or repair a rusted curb before we can flash it at all. On a big logistics building with dozens of units, that takes planning. We list which curbs need which trade and coordinate the order so each unit is down as briefly as possible.

Once the curb is sound and nearby seams are repaired, we clean and prep the PVC and weld the new flashing. The HVAC contractor resets the unit, and we install or reseal the counterflashing. If anything still keeps the flashing from sealing, we tell you what it is and list it separately in the estimate.

We confirm roof access, lift or crane needs, staging, parking and work hours with the facility manager. Buildings near the airport often have security rules, badge requirements and limits on crane height, and logistics buildings run around the clock with constant truck traffic. We plan around all of it.

We report each step as it is done, so you know which curbs are finished and which are still waiting on another trade.

When you call about a building in Passport Business Park, tell us which building and which units or curbs are leaking, and send photos if you have them. Let us know who services the rooftop equipment so we can coordinate with them from the start. If several curbs are leaking, each one gets its own line in the estimate, because their condition can vary a lot even on the same roof. If you have past repair records or warranty paperwork, send them too.

We also flag curbs that are fine today but will need attention soon, such as a unit near the end of its life or a support that is starting to wear through its pad. That helps you plan roof and HVAC work together.

We photograph each curb as found, any rotted wood or wet insulation, the curb repairs, the prepped membrane and the finished flashing. Each photo is tied to the curb's location on the roof plan, which matters on a large roof with a lot of similar-looking units.

A roof condition report for your building lists each curb we repaired, any HVAC work still pending and any part of the roof we did not inspect. Temporary protection installed while waiting on another trade is noted separately.

That record helps when units are replaced later. The new installer can see how each curb was flashed and what to watch for, so you are less likely to pay for the same curb twice.

How do you show work another trade has to do first?

The estimate lists it as its own item, with who is responsible and how it affects our schedule. We track its status alongside our roofing work so nobody assumes it is done.

Why check the membrane around a curb before flashing it?

The new flashing has to bond to it, and membrane around curbs takes extra wear. We test it and cut back to sound membrane if needed.

What happens if you find rot or wet insulation at a curb?

We photograph it and talk with you before going further. Rotted wood and wet insulation are replaced before new flashing goes on, and the estimate is updated.

What records will we get after the curb repairs?

Photos of each curb before, during and after the repair, tied to its location on the roof plan, plus a report listing any HVAC work still pending.

Tell us which building and which curbs or rooftop units are leaking. We'll inspect the flashing, separate roofing work from HVAC work and give you a clear estimate.

• commercial roofing in Euless
• roof service in Grapevine
• rooftop curb assessment defining the roof task and relevant adjoining component correction
• PVC curb correction using identified membrane and examined retained joining sheet
• aircraft hangar property with individually authorized roof and retained material investigation
• roof condition record locating DFW area component findings and permanent membrane stages