Infrared and capacitance roof moisture surveys for Houston commercial buildings. We map wet insulation under flat roofs so you repair only what is failing.

Finding Wet Insulation Before It Spreads
A flat roof can look intact from the parking lot and still be holding hundreds of square feet of saturated insulation underneath the membrane. Once water gets past a failed seam or an open detail, it travels sideways through the insulation boards, far from wherever the actual breach is. We run moisture surveys on Houston commercial roofs to find those wet zones and draw them on a map, so the building owner knows exactly where the problem is instead of guessing or tearing off a roof that mostly still works.
This matters more here than in drier parts of the country. Heavy Gulf Coast rain, the volume of water a single thunderstorm can dump on a low-slope roof, and the saturated humidity that keeps trapped moisture from ever drying out all conspire to turn a small leak into a large band of dead insulation. We have walked roofs across Westchase, the Energy Corridor, and the older warehouse stock east of downtown where the visible interior staining was a fraction of what the survey actually found above the deck.
How We Survey a Roof
There is no single method that works on every roof, so we pick the technique that fits the assembly and the conditions on the day we are there.
Infrared Thermography
Wet insulation holds heat differently than dry insulation. After a sunny day, dry areas of the roof cool off quickly once the sun goes down, while saturated areas stay warm and release that stored heat slowly. We scan the roof during that evening cool-down window with an infrared camera and the wet zones show up as bright thermal patterns against the cooler dry field. Houston gives us plenty of strong solar loading to drive this contrast, but it also gives us short clear-sky windows, so we schedule around the weather and confirm that the roof has dried on the surface before we start.
Nuclear and Capacitance Testing
Infrared does not read well through ballast, through some coatings, or on a roof that never built up enough solar heat that day. For those situations we use a moisture meter that reads hydrogen content through the membrane on a measured grid, or a capacitance scanner that picks up moisture in the insulation as we walk a pattern across the deck. We mark hits with flags or paint and tie them back to a drawing.

Verification Cores

Every survey method points us at suspect areas, but the only way to confirm what is actually in the assembly is to pull a small core. We cut a few test cuts inside flagged zones, look at the insulation and the deck, document the moisture, and patch the cut watertight before we leave. The cores tell us whether we are dealing with surface moisture that will dry, fully saturated board that has to come out, or deck corrosion that changes the whole scope. What You Get From the Survey

Schedule a roof review

Commercial Roof Moisture Surveys | Houston, TX

The deliverable is a marked roof plan, not a verbal impression. We hand over a drawing that outlines the wet areas with square footage, photos of the conditions and the cores, and a plain explanation of what the readings mean for the roof.

Outlined wet zones with measured square footage you can budget against

Core photos showing the actual condition of the insulation and deck

Houston Energy Corridor commercial buildings

A repair-versus-replace recommendation grounded in what we found, not a sales pitch for a full tear-off

A baseline you can re-survey against next year to see whether a problem is growing

When a Moisture Survey Pays for Itself

Roof planning notes

Before You Reroof or Recoat

Talk with a Houston commercial roofing team

After Hurricane Season or a Hail Event

Installing a new membrane or a reflective coating over wet insulation traps the water and guarantees the new system fails early. Owners in the Galleria area and across Harris County industrial parks order a survey before any major roof work specifically so they are not paying to seal moisture into the assembly. If the survey is clean, you reroof with confidence. If it finds wet zones, you replace that insulation first and protect the new investment. Wind-driven rain during a tropical system, or punctures from a hail storm, can let water into a roof that still looks fine afterward. A survey in the weeks following a major weather event catches the saturation while it is still localized and still cheap to fix, instead of waiting for the ceiling tiles to stain months later.

During a Real Estate or Insurance Transaction

Buyers, lenders, and insurers want to know the real condition of a roof before money changes hands. A moisture survey gives a defensible, documented picture of how much of the roof is compromised, which is far more useful than a roofer's eyeball estimate during a due-diligence window. Talk with a Houston commercial roofing team