Guidelines for Selection of and Use of Foam Polyurethane Roofing Systems (Classic Reprint) - Hardcover

Inhaltsangabe

Excerpt from Guidelines for Selection of and Use of Foam Polyurethane Roofing Systems

Several leading roofing contractors, including spray foam applica tors, were contacted, interviewed and, in some cases, visited to Obtain their views, experiences, and Opinions on the use, application and performance of urethane roofing systems. These included successful and unsuccessful foam applicators and roofing contractors who have not been in the business directly but had definite opinions as expert outside observers. These contacts provided us with Opportunities to hear and observe the good and bad, the advantages and limitations, and the strengths and weaknesses of the foamed urethane systems in roof applications.

The opinions of owners and users were also solicited. The private as well as the public sector became involved and the Opinion givers ranged from housewives to plant engineers who were responsible for urethane roofing systems of several acres in area. These Opinions were also used in developing the performance guidelines.

Scientists experienced in the chemistry of polymers and in the chemistry and use of protective coatings were queried regarding chemical structure, reactions, chemical and physical properties, weathering and aging characteristics, compatibility, engineering properties and the like.

Further, the experience of personnel of the National Bureau of Standards familiar with the properties of materials and performance of all types of roofing systems over many years was called upon to condense the multifarious data obtained from the many and various sources into useful information to assist the decision maker.

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