Commercial Roofing in Gordonville, TX

Rooftop equipment sits on a roof like a guest on a table. It adds weight, vibration and holes. Each unit needs a curb, a flashing and a path for service crews. Many commercial roof leaks start at a unit, not in the open membrane, because every unit adds a joint to the roof. In Gordonville, TX, on the shore of Lake Texoma in northwestern Grayson County, equipment curbs are a first stop on a commercial roof walk.

Gordonville sits along FM 901. It had 1,714 residents in 2010 and covers 27.77 square miles, including 5.14 of water. The area was part of a sheep ranch until 1872. We walk each roof, name the system and report what we find at the units and in the field.

A curb is a raised frame around an opening. The unit sits on it. The membrane turns up the curb and ends under a counterflashing or a cap. That vertical turn is a stress point. It moves with heat and with the unit's vibration.

Flashings at curbs fail in four ways. The membrane pulls away at the corners. The sealant at the top edge cracks. Fasteners back out. The curb itself shifts or rusts. Any of them opens a path for water.

We check each curb on all four sides. We press the corners, tug the counterflashing and probe the base. We look at the seams, where welded or taped joints meet the vertical. We note rust on the curb frame. A rooftop equipment curb and support repair often means rebuilding the corner with a pre-formed piece and a new termination.

Not every unit sits on a curb. Some sit on rails or pads. Small units sit on sleepers. Each support puts weight on the membrane. Over time, supports can crush insulation, puncture the sheet or trap water.

We check each support for movement, rust and wear. We look under pads for abrasion. We check that sleepers have a protective layer beneath them. We lift a corner where we can, to see the membrane under the support. A support that sits in a pool holds water against the sheet and ages it fast.

If a unit has been replaced, we ask whether the new one matches the old footprint. A different size can leave an old curb abandoned and open. Capped openings, unsealed conduit and old patches are common finds. We map each one and list the repair. Abandoned curbs get a cap and a patch, so the opening is closed with a proper detail and not a layer of sealant.

Rooftop units make water. Air conditioners drip condensate. Pans overflow. Lines clog. That water can wet insulation as thoroughly as rain, and it looks like a roof leak from below.

We trace each line from the unit to its end. We check pans for rust and overflow stains. We look at where lines discharge: onto the membrane, into a drain or over the edge. A line that discharges onto the sheet wears a spot and holds a pool.

A scan finds the wet insulation, and we compare its shape with the equipment layout. A wet patch around a unit points to the unit. A wet patch near a seam points to the seam. An infrared moisture survey sorts the two causes before any repair is priced.

Some owners plan solar. A roof that will carry panels has to be sound first. Panels sit for decades. Replacing the membrane under them is costly. So the roof is checked and, if needed, renewed before the array goes on.

A solar-ready roofing scope checks condition, remaining life, attachment points and drainage. It plans penetrations and flashing details ahead of time. It also leaves service paths and clear zones around units. We coordinate with the solar installer so the mounts, conduit and flashings all fit the roof system, and we record the layout on the roof plan so later repairs know where the penetrations sit.

The roof is our part: we make sure it can carry the load and stay watertight.

Sherman's weather record stretches from minus 3 F to 113 F, and Gordonville, to the northwest, sits in the same band. Equipment flashings move with every swing. A bead that was soft in spring is brittle by August, and cold then cracks it.

Hail passes through the region in spring. A June 2025 report northwest of Denison measured half-dollar stones, and the April 2014 storm logged dime stones north of Sadler. Units are exposed: condenser fins dent, covers crack and flashing metal bruises. After a storm, we check equipment and the roof around it. A hail damage repair scope covers both.

Winter adds ice. Ice piled up four to five inches deep over Sherman and Denison in December 2013. Ice at curbs can force water behind flashings, so we clear drains and check sealant before the cold season.

Repair, recover or replace. A repair fixes a defined area, such as a curb or a boot. A recover adds a new membrane over a dry roof. A replacement takes the old system out. Scans and cores decide which fits.

Cost follows scope. Unit count, curb condition, access and insulation depth all matter. Cranes or lifts may be needed to move units for a full replacement, and scheduling the lift with the mechanical contractor sets the calendar. The proposal names every driver behind the price, and the permit office is asked what applies at the address before replacement is priced.

Nearby points we serve include Pottsboro and Sherman. If water is coming in right now, the line is answered at any hour.

Service crews climb onto the roof to maintain equipment. They carry tools, filters and parts. They walk the same path every visit. A path worn into the membrane is a future leak.

We map the routes between the roof access and each unit. We look at wear along them. Scuffs, thin spots and punctures show where traffic bites. We recommend walk pads along the main routes and at the foot of each unit. Pads spread load and take scuffing so the membrane does not.

We also check what crews leave behind. Dropped screws, cut wire and old filters cut sheets and block drains. A short housekeeping walk at the end of each service visit prevents most of it. A membrane puncture repair is quick when found early. Found late, it often means wet insulation and a larger cut-out.

The photo record shows traffic wear before it becomes a leak, and it lets an owner raise the point with the service company.

Why do leaks start at units?

Curbs and flashings are joints. They move with heat and vibration, and their sealant ages.

Can a leak come from the unit itself?

Yes. Condensate and overflow can wet insulation. A scan helps sort it out.

Do I need a new roof before solar?

Only if the roof is near the end of its life. A scan and core tell us.

Can units stay on during work?

For repairs, often yes. For full replacement, units are lifted or moved.

What should I send first?

Give the address and describe any leak. Past repair records help if they exist.