DG-1110-3-119
Design Guide: Band Training Facilities
March 1983
Practical Approaches for Accoustic Construction
Small fixed windows in acoustical doors (up to one foot
square) may be single-glazed (one pane of glass). For larger
windows in or next to acoustical doors the considerations
from Section E,Windows, should be applied.
An improved quality sound seal is shown in B. The seal
is an attached neoprene bulb seal held in place with a metal
strip. The door is hollow metal, packed with fiberglass
insulation.
In further improvements, Illustration C, the frame is
installed in a wall consisting of both masonry and gypsum
drywall, which is resiliently attached to furring channels
on the masonry. Sealant eliminates any rigid connection
between grout-filled frame and the resilient gypsum. The
stop is an attached metal channel with a projecting neo-
prene strip, applied to a flat jamb.
C. Resiliently attached to furring channels on the
masonry
Figure 5-15. Acoustical Door Frames and Seals
5-17
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