Roof consultant Mark Kelly estimates that in the United States alone there are
more than 250 billion square feet of residential roofing and over 750 billion
square feet of commercial roofing. Kelly has more than 30 years of experience
in the design, construction, restoration and preservation of buildings, and his
experiences inspired him to write an in-depth look at the U.S. roofing
industry.
Indiana Tube Corporation is the largest supplier
of refrigeration condensers in North America and one of the major suppliers of
small diameter, single-wall, low carbon steel tubes.
The historic Kent County Administration Building in Grand Rapids, Mich., began its road to renovation with a new roofing system specified to replace an aging modified bitumen roofing system.
The flashing element is the most vulnerable part of any roof system because it is the point at which the horizontal roof deck and vertical surface join. It is also the intersection of two different materials, such as is the case with parapet walls.
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