EFFECTS OF THERMAL SHRINKAGE ON BUILT-UP ROOFING,
Abstract
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 construction 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)
Document Details
- Document Type
- Technical Report
- Publication Date
- Mar 04, 1965
- Accession Number
- AD0700466
Entities
People
- William C. Cullen
Organizations
- National Institute of Standards and Technology