Detec Systems LLC

David Vokey

Andrew J Preiksa

Mark K Bridges

Bryan McGough

Shaun Katz

Murphy Vockeroth

Patricia Vokey

Bryan Mcgough

A method of constructing a waterproof layer on a roof deck includes applying an array of coverboards covering the roof deck and a water impermeable membrane. In a leak detection method, an electrical potential is applied between a conductive detector on top of the membrane and a conductor below the membrane such that current flows between the conductor and the conductive detector through moisture or liquid in any leak in the membrane. Each coverboard comprises a base layer of an electrically non-conductive support and insulating material with an upper surface which has laminated thereto a facer sheet material which is formed of an electrically non-conductive material which can be fibers in a binder with an electrically conducting material mixed into the binder.

Method of providing a conductive substrate for an electrical leak detection method and a board therefor

A leak in the membrane of a generally horizontal roof support deck includes dividing the membrane into separate zones and locating a sensor to detect moisture underneath the membrane. A movable scanning device carried by a worker has a power supply antenna for supplying power by an electromagnetic wave to the sensor and the worker moves the scanning device to selected ones of the zones. At each selected zone the power supply antenna activates the sensor in the zone and the sensor to emits signals related to the moisture underneath the membrane as detected by the sensor device which are detected and recorded at the mobile scanning device.

Zoned roof monitoring system

A leak in the membrane of a generally horizontal roof support deck includes dividing the membrane into separate zones and locating a sensor to detect moisture underneath the membrane. A unique digital code address is assigned to sensor where inputs of the sensors are connected to a single power and signaling cable system using a daisy chain. The serial bus controller is to interrogate each of the sensor devices using the address to identify zones where moisture is detected. A transmitting antenna is provided at each sensor which is switched on when moisture is detected for detecting of the sensor from above the membrane by a utility locate device to confirm the location of the sensor.

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Bellingham, WA, United States of America

David Vokey