05/09/2011

Roofing Commodities: Then and Now

As roofing practices evolve, so does the marketplace

By Richard L. Fricklas

 

Most specifiers believe any roofing asphalt that meets ASTM Standard D312 will fit a project requiring hot-applied bituminous or modified bituminous system.

The roofing industry has experienced the term “commodity” throughout its life. Examples include roofing asphalt, which is defined by ASTM Standard D312. To most specifiers, any roofing asphalt that meets D312 is fine for a hot-applied bituminous or modified bituminous roofing project. Over the years, asphalt producers have tried to insert product differentiation by introducing “low fuming” or other virtues. Such an example is Owens-Corning’s PermaMop:

In creating PermaMop modified roofing asphalt, we didn’t just one-up regular asphalts, we’ve three-upped them.

PermaMop is versatile. It’s specially formulated for use on any slope of roof. It has the softening point of Type IV asphalt but with a lower equiviscous temperature (EVT) than any standard Type IV. It stays where it’s mopped, even on steep-sloped roofing in intense heat.

PermaMop is long lasting. In laboratory testing, ordinary asphalt exceeds 60 weather cycles (approximately 15 years). PermaMop lasts a minimum of 150% longer – withstanding up to 193 cycles, making it an ideal choice for projects in extreme weather areas – whether it’s heat, cold or moisture.

PermaMop is low fuming. Its composition includes a technologically advanced polymer additive. When heated, the polymer floats to the surface and creates a skim layer on the kettle that traps the fumes and odor inside without affecting the asphalt or disrupting kettle operation.

Despite these obvious advantages, PermaMop costs more in a marketplace where price rules.


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Visit our website today to learn about the design flexibility of a Morton building and the endless possibilities of partnering with our designBUILD team.


Wood construction is both cost and energy efficient. Check out Morton Buildings and our designBUILD team online today to discover all the benefits of post-frame construction.


When choosing a metal-clad building for your next construction project, consider Morton Buildings, Inc., and their designBUILD team, we’ll make your dream a reality.

We Can Help You Reduce Energy by 30%

Our mission is to help our customers manage their buildings' energy costs, improve reliability, and enhance performance while having a positive impact on the environment.
CLICK HERE to find out how.

Add highly responsive multi-zone comfort to any building project, in any climate. Our CITY MULTI H2i R2- and Y-Series VRF systems give you flexibility to fit the needs of any building. Enjoy 100% heating capacity at 0°F outdoor ambient, and 85% heating capacity at -13°F outdoor ambient.  For more information, log on to www.mitsubishipro.com

 
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