Download or read book Effects of Thermal Shrinkage on Built up Roofing written by William C. Cullen and published by . This book was released on 1965 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt: The effects of thermal movement of bituminous built-up roof membranes are related to some common failures of built-up roofing observed in field exposures.A procedure for determining the amount of thermal movement of built-up membranes is described.Data are given for the thermal movement of various bitumens and reinforcing felts used in the con * struction of built-up roofs and for the composite membranes over a temperature range construction of built-up roofs and for the composite membranes over a temperature range of +30 to -30F.The data obtained are related to field experience and suggestions are presented which will prove beneficial in reducing the incidence of built-up failure due to thermal movement.(Author).

Download or read book Effects of Thermal Shrinkage on Built up Roofing written by William C. Cullen and published by . This book was released on 1965 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Thermal Shrinkage on Built up Roofing with List of References written by and published by . This book was released on 1965 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Thermal Shrinkage on Built up Roofing written by Canadian Roofing Contractors' Association and published by . This book was released on 1972 with total page 6 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Effects of Moisture in Built up roofing written by and published by . This book was released on 1978 with total page 84 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Thermal shock Resistance for Built up Membranes written by William C. Cullen and published by . This book was released on 1967 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt: The resistance of bituminous built-up roofing membranes to thermally induced forces is considered in terms of their strength properties such as breaking load in tension, modulus of elongation and apparent linear thermal expansion coefficient.The development of a Thermal-Shock Resistance Factor is described and values are given for three bituminous built-up membranes at temperatures of - 30F (-34.4C), 0F (-17.8C), 30F (-1.1C) and 73F (22.8C).The apparent relation between the values obtained in the laboratory and the observed performance of roofing membranes in service is considered.The utilization of the Thermal-Shock Resistance Factor in the reduction of potential failures of bituminous built-up roofing membranes in service from thermally induced forces is also discussed.(Author).

Download or read book Laboratory field Comparisons of Built up Roofing Membranes written by Thomas H. Boone and published by . This book was released on 1968 with total page 20 pages. Available in PDF, EPUB and Kindle. Book excerpt: The values of breaking load, elongation and thermal expansion of nine bituminous built-up membranes prepared by roofing contractors under field conditions and by technicians in the laboratory were measured at sub-freezing temperatures.The data indicated that the field-prepared specimens agreed favorably with laboratory-prepared specimens, although the samples from the field frequently reflected higher values for thermal-shock resistance than did their laboratory-prepared counterparts.The higher values were attributed to the smaller amounts of bitumen used between the plies of the field specimens.The results appeared to support the validity of the application of the 'strength-thickness rule' to bituminous built-up membranes.(Author).

Download or read book Engineering Properties of Roofing Systems written by and published by ASTM International. This book was released on 1967 with total page 217 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book NBS Technical Note written by and published by . This book was released on 1978 with total page 608 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Annual Report of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1962 with total page 1598 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Research of the National Bureau of Standards written by and published by . This book was released on 1969 with total page 502 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Journal of Research of the National Bureau of Standards written by United States. National Bureau of Standards and published by . This book was released on 1966 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book U S Government Research Development Reports written by and published by . This book was released on 1970 with total page 232 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Technical Manual written by United States Department of the Army and published by . This book was released on 1966 with total page 36 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Investigation of the Hydraulics of Horizontal Drains in Plumbing Systems written by Robert S. Wyly and published by . This book was released on 1964 with total page 520 pages. Available in PDF, EPUB and Kindle. Book excerpt: Results are reported from an investigation of the hydraulics of flow in experimental apparatus simulating nominally horizontal simple and branching drains of plumbing systems. The data are correlated with limited findings in an earlier, unpublished NBS study the results of which have been utilized in current plumbing codes. The need for further research is pointed out, particularly in relation to hydraulic performance of drain systems as affected by steep slopes, drain storage volume, energy losses at stack bases, attenuation of water depths and discharge rates in long drains, and large drain diameters.

Download or read book NBS Monograph written by and published by . This book was released on 1959 with total page 12 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Building Science Series written by and published by . This book was released on 1970 with total page 286 pages. Available in PDF, EPUB and Kindle. Book excerpt: