Roof Moisture Survey Services - Core Sampling and Saturation Mapping

Insulation saturation is the hidden variable in every commercial roof scope. A roof that looks recoverable from the surface - no visible membrane failures, no active leaks - can have 30 to 50 percent of its insulation area saturated from years of slow moisture intrusion. Recovering that roof with a new membrane traps the moisture, voids the warranty, and produces a system that will fail within three to five years. Tearing it off and replacing the insulation is the correct scope - but it costs more than a recover, and the decision needs to be justified with data.

Moisture survey services are how we generate that data. We use core sampling as the primary protocol for San Antonio commercial roofs - pulling two-inch diameter cores at representative locations across the roof surface and evaluating the insulation condition directly. For large roof surfaces or for roofs where the moisture pattern is suspected to be irregular, we supplement core sampling with infrared thermal scanning to map the moisture distribution before we determine the final core sampling pattern.

At Commercial Roofers of San Antonio, I conduct moisture surveys as a standalone service - not as a preliminary step that is automatically followed by a replacement proposal from the same company. The survey produces a moisture distribution map and a written recover-versus-replace recommendation. The owner can use that recommendation to evaluate any contractor's proposed scope, not just ours.