Thompson & Lichtner’s Electronic Roof Testing (ERT) on 10,000 square feet of Hydrotech 6125 hot membrane plaza decks at the Encore Hotel in Everett, MA continues. With state-of-the-art equipment our technicians use vector mapping to pinpoint breaches in membranes by tracing the flow of an electric current across the membrane surface. This testing helps avoid potential future water infiltrations and costly litigation, along with giving peace of mind and quality assurance.