DG-1110-3-119
Design Guide: Band Training Facilities
Practical Approaches for Accoustic Construction
March 1983
B. Wall running across deck corrugations
A. Wall running in same direction as deck
tice Rooms (see Figures 5-6A and B), it should be shielded
corrugations
from the room with an STC-rated (STC 35-44) suspended
Figure 5-6. Joints Between Masonry Walls and Metal
ceiling. Careful attention must be paid to the joint between
Roof Decks
ceiling and wall, as the wall/roof joint, although it must
be sealed, will be a more difficult problem. In the illustra-
Metal roof decks are unsuitable for use in Band Facilities,
for several reasons. They are lightweight, stiff, and continu-
tion in Figure 5-6A, fiberglass insulation is stuffed in the
joint between the wall and metal deck, and sealant is run
ous for long distances, so they will carry vibrations from
along the edges.
one room to many others. The corrugations of the decking
make it extremely difficult to seal the wall/roof joint. The
Figure 5-6B shows a concrete block wall running across
most effective modification to metal roof decks is regular
the roof corrugations. A premolded rubber filler strip, sup-
weight concrete topping, to add mass and dampen
plied by the metal deck manufacturer, is set in a bed of
vibrations.
sealant on the wall, and the joint between the filler and
If metal decking with concrete is used over Individual Prac-
the roof is also sealed.
5-6
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