Roofing Failures

This book defines roofing systems failure and explains its underlying causes. The sources of the problems, the steps needed to prevent recurrence, and the principal remediation alternatives are discussed in the main chapters.

"This practice covers the performance requirements for the design, components, construction, and service expectations of new roof system assemblies that always include steel deck, preformed roof insulation, and bituminous built-up roofing, and their attachment. It may also include fire-resistive components, integral acoustical treatment, vapor retarder, adhesive or mechanical fastener attachment, and aggregates. This abstract is a brief summary of the referenced standard. It is informational only and not an official part of the standard; the full text of the standard itself must be referred to for its use and application. ASTM does not give any warranty express or implied or make any representation that the contents of this abstract are accurate, complete or up to date."--Publisher's website.

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).

Based on case histories, this book presents 101 of the commonest roof detailing problems. Each problem is presented, with the consequences of poor detailing, photographs of failed roofs, a diagnosis of the problem and a drawing of the solution. Examples of good roofing design are included.