Full Product Manual

Bituthene
®
4000 Membranes carry a Underwriters’ Labora-
tory Class A Fire Rating (Building Materials Directory, File
#R7910) when used in either of the following constructions:
—Limited to noncombustible decks at inclines not
exceeding
1
4
in. (6 mm) to the horizontal 1 ft (0.3 m).
One layer of Bituthene
®
waterproong membrane,
followed by one layer of
1
8
in. (3 mm) protection
board, encased in 2 in. (50 mm) minimum concrete
monolithic pour.
—Limited to noncombustible decks at inclines not
exceeding
1
4
in. (6 mm) to the horizontal 1 ft (0.3 m).
One layer of Bituthene
®
waterproong membrane,
followed by one layer of DOW Styrofoam PD Insula-
tion Board [2 in. (50 mm) thick]. This is covered with
one layer of 2 ft x 2 ft x 2 in. (0.6 m x 0.6 m x 50 mm)
of concrete paver topping.
Warranty
Five year material warranties covering Bituthene
®
and Hydrod-
uct
®
products are available upon request. Contact your Grace
sales representative for details.
Technical Services
Support is provided by full time, technically trained Grace repre-
sentatives and technical service personnel, backed by a central
research and development staff.
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