Why does the water stain appear far from the actual roof leak?
Water follows the path of least resistance across the roof deck and along insulation seams before dripping through a ceiling tile. On a membrane roof with tapered insulation, the entry point can sit 10–30 feet from the visible stain, which is why professional roof leak detection using thermal scanning — not a visual walk — is required to locate it accurately.
How does infrared thermal roof scanning actually work?
Wet insulation retains heat longer than dry insulation after sunset. An infrared camera captures the temperature differential across the membrane surface, revealing trapped moisture as a distinct thermal pattern invisible to the naked eye. Scans are typically run at dusk for the clearest contrast.
What roof types can be scanned for leaks in Houston?
We perform leak detection on TPO, EPDM, PVC, modified bitumen, built-up roofing (BUR), and standing seam metal commercial roofs. Low-slope and flat roofs common on Houston strip centers, warehouses, and office buildings are the most frequent scan candidates.
How long does a commercial roof leak detection scan take?
Most scans on a 15,000–40,000 sq ft Houston commercial building take 2–4 hours, including flood testing of suspect seams. Larger industrial roofs or multi-building complexes are scheduled across a half or full day.
Does rain or standing water affect scan accuracy?
Active surface water skews infrared readings, so scans are scheduled after the roof surface has dried, typically 24–48 hours after Houston’s frequent afternoon storms. Flood testing, by contrast, intentionally ponds water over a seam to confirm a suspected breach.
Will a leak detection scan tell me if my roof needs full replacement
Yes, a thorough roof leak detection scan generates a moisture map that shows exactly how far water has spread beneath the membrane. Isolated wet zones near a single penetration usually mean a targeted repair; widespread saturation across multiple sections is a strong indicator that replacement will cost less long-term than continued patching.
Can a leak detection report be used for an insurance claim?
Yes. We provide a dated, photo-documented moisture map with marked coordinates that Houston property managers commonly submit alongside commercial roof insurance claims, particularly after named storm events.
What’s the most common leak source on Houston flat commercial roofs?
HVAC curb flashing and rooftop penetrations (pipe boots, conduit, drains) account for the majority of leaks we trace during roof leak detection on Houston commercial buildings, followed by field seam separation from UV and thermal cycling common in the region’s heat.
How much does commercial roof leak detection cost in Houston?
Scan pricing depends on roof square footage and access. Call (832) 888-1666 for a scoped quote based on your building’s size and roof type; the scan report is provided before any repair work is authorized.
Do you offer emergency leak detection outside business hours?
Active leaks affecting tenant space, inventory, or equipment are dispatched same day. Non-urgent diagnostic scans are typically scheduled within the week to align with building access and tenant coordination.
What warranty applies to a commercial leak repair after detection?
Repairs completed following a leak detection scan carry a 5-year workmanship warranty from Achilles Roofing, separate from any manufacturer material warranty on the membrane itself.
Do you serve commercial properties outside Houston proper?
Yes — we serve Houston, The Woodlands, Cypress and more, with a supply yard at 16310 Cypress Bend Drive supporting fast commercial dispatch across the coverage area.