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Some of the points highlighted in the program were:

• PSl's leadership in the development and implementation of non-CFC based blowing agents.
• The reduction in the burning of fossil fuels that occurs when energy efficient SPF roofs are used.
• The fact that SPF roofs can be applied without removing old BURs, reducing the load on overburdened landfills.
• The renewability of SPF roofing systems. By periodic recoating programs, SPF roofs can have an indefinite life expectancy.

Cost Savings with SPF Cool Roofs
The results of an in-house survey are listed below indicating a 4 ½ year payback, strictly through reduced utility bills. (Study conducted by Gerald Scott, Director of Energy, Texas A&M University)

Year	Sq. Ft. Roofing	Construction Cost	Annual Energy Savings	Payback Period (Discounted)
1980	61,563	$164,214	$76,055	2-1/3 yr.
1982	44,280	$126,400	$31,144	3-1/3 yr.
1983	163,516	$414,135	$74,048	4-1/2 yr.
1984	248,500	$805,346	$129,681	4-1/2 yr.
Total	593,529	$1,694,399	$327,460	4-1/2 yr.

In Los Angeles, for every degree the temperature rises above 70°F (19°C), the incidence of smog increases 3 percent. LBNL researchers estimate that if all the buildings in the greater Los Angeles area had cool roof systems, the total energy and smog savings (i.e., lower hospital bills and fewer lost work days caused by smog inhalation) would be about half a billion dollars per year.

A 1-degree rise in temperature can mean a 2 percent increase in the demand for cooling power. That might not sound like much, but over a year it can translate into $25 million worth of electricity in Los Angeles alone.

To view this article and other interesting facts about Spray Polyurethane Roofing,
Click on the GE Logo to go to the


GE Roofing Web Site

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