Page 93 - Construction Waterproofing Handbook

2.56 CHAPTER TWO

FIGURE 2.70 Applying mastic termination detailing.
(Courtesy of TC MiraDRI)

FIGURE 2.71 Back-rolling membrane at seams to
ensure bonding. (Courtesy of TC MiraDRI)

Hot-applied sheet systems have installation and performance characteristics similar to
those of roofing applications. These systems are brittle and maintain very poor elastic
properties. Extensive equipment and labor costs offset inexpensive material costs. Below-
grade areas must be accessible to equipment used for heating materials. If materials are
carried over a distance, they begin to cool and cure, providing unacceptable installations.
Properties of typical hot-applied sheet systems are summarized in Table 2.7.

CLAY SYSTEMS

Natural clay systems, commonly referred to as bentonite, are composed primarily of
montmorillonite clay. This natural material is used commercially in a wide range of products