• Typically, on a hot day, a roof can see a 100F degree swing from the cool of night to the blazing sun at 2:00P.M. This temperature swing, and the potential for temperature shock can destroy a roof long before its expected life.

• On a 70F cooling day, the roof surface can reach temperatures in excess of 175F.

• The PAIR system will reduce and maintain roof surface temperatures at 99F or less.

• As was discovered during the long history of roof study, the optimum solution to roof cooling involves a light spray of water on the roof surface, with the correct time interval to permit evaporation before additional water is applied. Too little water, and roof temperatures can rise above a desired limit. Too much water, and the effects of evaporation can actually be reversed. With the PAIR system, the actual roof surface receives less water  than a morning dew. 

•   eCOOLogy, after years of research and design, has solved the problems associated with putting water on a roof. Aside from a highly sophisticated computer-based control system, eCOOLogy is the only system of its kind that tests itself – every 4 minutes - for leaks or breaks in the pipe delivery system. If a valve, pipe, or any part of the system fails to operate as expected, the system shuts itself off, and calls for help. It works, it’s patented, and it’s effective.

• To make eCOOLogy even better, in this world of shrinking resources, it is designed to operate with reclaimed or recycled water. Instead of using potable water – always in short supply – the system is quite happy operating with recycled water that is currently thrown away in staggering quantities.

• The entire system is solar powered, with the exception of a small transformer for the MCU. This transformer [capable of powering a small flashlight] permits overnight operation, while the solar powered zone controllers are “sleeping.”

• The roof membrane is maintained at a nearly constant temperature with eCOOLogy. Solar power provides essentially all of the required power. Recycled water can be used wherever available. So-called energy efficient roof coatings can reflect some energy into the air immediately above the roof – creating a super-heated environment for roof mounted equipment and air intakes. In this ecology-minded world, we must now accept, eCOOLogy is a true Win-Win solution.

• The PAIR system experiences no decreases in efficiency with age.

     First, Water Controls 

Water controls can be mounted either on the outside, inside or roof level.  This will depend upon existing water connections.  Depending upon availability, the PAIR system can use potable, recycled or reclaimed water. Controls include pressure, metered usage and automatic shut off.

     Second,  Master Control Unit (MCU)

A Master Control Unit (MCU) oversees all activity of the system. It is, in essence, the traffic cop, directing the flow.  This MCU “talks” to a number of Zone Controllers, where each Zone Controller is responsible for a portion of the roof. After a zone controller has completed its evaluation, and watering if necessary, of its eight sectors, a report is sent to the MCU.  The MCU records the amount of water used, the condition of the roof, and other important information regarding that Zone Controller. After this step, the MCU performs a complex series of tests, lasting about 45 seconds, to determine whether any abnormalities have occurred in the system. A failure of any component, valve, pipe, spray head, or Zone Controller will result in the system being shut down and a call for help being issued. The system has a built-in modem, so it can call a repair and maintenance service by itself.

   Third, Zone Controller

 Each Zone Controller is responsible for a portion of the roof. Each Zone Controller handles up to eight sectors, or minizones.  If the report from a particular sensor pad indicates the need for water, the Zone Controller turns on the appropriate control valve for approximately 20 seconds. After a zone controller has completed its evaluation, and watering if necessary, of its eight sectors, a report is sent to the MCU.

   Fourth, Sensor Pads

 If the report from a particular sensor pad indicates the need for water, the Zone Controller turns on the appropriate control valve for approximately 20 seconds. That’s all the water that is applied at any one time.

    Fifth, The Grid

  Each Zone Controller handles up to eight sectors, or minizones.  If the report from a particular sensor pad indicates the need for water, the Zone Controller turns on the appropriate control valve for approximately 20 seconds. That’s all the water that is applied at any one time.  The location of each spray head is dependent upon the needs/location of mechanical equipment/locations penetrations, skylights, roof hatches etc.  There is a specific spray head to address individual needs/conditions. A failure of any component, valve, pipe, spray head will result in the system being shut down.