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Abstract
Correlation of the results of laboratory and field practice has been of primary interest to research technicians and users of materials in the building industry. When a new laboratory-developed concept is proposed, extensive testing of lab-prepared and field-prepared samples is necessary to determine the validity of the concept. In this connection, a study to compare the values of the thermal shock resistance factors of field-prepared and lab-prepared samples of built-up roofing systems was initiated. The program was conducted by the Building Research Division of the National Bureau of Standards in cooperation with the Midwest Roofing Contractors Association. Samples of nine built-up roof systems were prepared at a job site in Kansas City, Mo., by employees of Sellers & Marquis Roofing Co. Materials similar to those used in the preparation of the samples in the field were furnished to the NBS in Gaithersburg, Md. Samples were prepared using these materials under controlled conditions by NBS personnel. The specimens were tested to determine the engineering properties from which the thermal-shock resistance factors were calculated.
Correlation of the results of laboratory and field practice has been of primary interest to research technicians and users of materials in the building industry. When a new laboratory-developed concept is proposed, extensive testing of lab-prepared and field-prepared samples is necessary to determine the validity of the concept. In this connection, a study to compare the values of the thermal shock resistance factors of field-prepared and lab-prepared samples of built-up roofing systems was initiated. The program was conducted by the Building Research Division of the National Bureau of Standards in cooperation with the Midwest Roofing Contractors Association. Samples of nine built-up roof systems were prepared at a job site in Kansas City, Mo., by employees of Sellers & Marquis Roofing Co. Materials similar to those used in the preparation of the samples in the field were furnished to the NBS in Gaithersburg, Md. Samples were prepared using these materials under controlled conditions by NBS personnel. The specimens were tested to determine the engineering properties from which the thermal-shock resistance factors were calculated.
Date
5/1968
5/1968
Author(s)
T Boone; L Skoda; W Cullen
T Boone; L Skoda; W Cullen
Page(s)
14
14
Keyword(s)
built up roofing membranes; comparison; thermal shock resistance
built up roofing membranes; comparison; thermal shock resistance