urban regions have become much warmer than their rural surroundings, forming a "heat island" of higher temperatures.

When it comes to energy efficiency, all agree that in the summer, white roof membranes reflect the sun’s rays, lowering air conditioning costs — while dark roofs absorb the sun’s rays, raising air conditioning costs.

The July issue of Roofing Contractor brings you up to date on many of the latest technologies performing in the roofing industry.

Building owners and managers face some tough decisions when it comes time to replace the roof on their commercial, industrial or institutional buildings.

Much has been written about the use of cool roofs in northern climates.

I must admit that I was charmed by the cool roofing revolution when it first began.

When “cool” roof requirements were first introduced into energy standards like ASHRAE 90.1, contractors and specifiers were allowed to use less insulation if a reflective roof was installed.

Stephen Chu stated that all rooftops should be painted white. Is he right?