The Problem with Roofs . . .
Roofs are born with their troubles
Rarely do their problems stem from things that happen to them after they are put into service. Almost all roof problems are "built-in" at the time of installation.
It is because of these flaws that the average commercial roof in the United States lasts only seven years. Although built-in problems are numerous, they generally fall into one of four categories. The following are the primary causes of problems:
Overheating of Asphalt
Almost all built-up roofs have the asphalt overheated at the time of installation to facilitate ease of application and regulate the quantity of material that is applied between piles.