An Easy to Use Ceiling Isolation Upgrade
for Suspended Ceiling Systems
IsoTile Ceiling Panel is designed to isolate and absorb ceiling
transmitted noise in both directions. Just drop in place on top
of your existing acoustic ceiling tiles. ASC’s IsoTile is
engineered to block and absorb sound. The Panels are delivered as
2’ x 2’ tiles that are 4.25" thick. They are also
available to fit metric sizes if required. Your installers can cut
as needed to fit odd sizes or mechanical openings for sprinklers,
vents or lights. Ceilings conditioned with IsoTiles look the same
as ordinary ceilings, but sound much better.
Floating Sound Barrier The Panels are constructed using two layers of fire rated
2” acoustic fiberglass sandwiched between a single 1/4”
sheet of drywall. Each is completely covered with a non-combustable
spun polyester fabric which prevents glass fibers from shedding
into the environment. A key design element is the fact that the
IsoTile is suspended on top of the existing acoustic ceiling tile.
Easy to install ASC ships the IsoTile in the form of 2’ x 2’
tiles, 4.25” thick, ready to install. The Tiles rest on top
of existing suspended ceiling tiles. IsoTiles are lightweight, and
go in by lifting the adjacent acoustic tile to access the ceiling
cavity. No glue or adhesive is needed. Partial Tiles and openings
can be cut to fit the ceiling using ordinary construction tools
such as circular saws and hole saws.
How it Works Noise from the floor above is isolated and absorbed by
the top half of the IsoTile. At the same time, noise from the room
below is isolated and absorbed by the bottom half of the IsoTile.
The soundproof rating for IsoTile on top of acoustic ceiling tile
is approximately STC 35.
Isolating Partition Walls with IsoTile The IsoTile Ceiling Panel can be used to isolate partition
walls for both new construction and as a retrofit to existing construction.
Typical Partition Walls Leak Sound The easiest way for a suspended ceiling to be installed
is without any partition walls. Typically, partition walls go in
after the suspended ceiling is complete, and they stop just short
of the ceiling tile, leaving a small gap. Sound is collected in
the newly formed corner, just like a megaphone collects sound. This
concentrated sound pressure is then sent through the gap where it
is released on the other side, again just like a megaphone.
Privacy Sound can leak through a partition via 4 possible paths.
Potential sources include through the wall (1.), through the top
plate gap (2.), through the ACT (acoustic ceiling tile) (3.), or
through the cavity above the ACT. Even if there is no plate gap,
or the gap is sealed with caulk, sound still goes through the ceiling
tile and jumps over the wall. We call this flanking sound transmission
(2., 3., and 4.), and every partition wall in a suspended ceiling
office suffers from these shortcomings unless they are addressed.
Complaints go out to the contractor who apologetically tells the
client that nothing can be done about it. ASC has a better answer.
How IsoTile Works with Partition Walls Noise is blocked and absorbed by the IsoTile. Even so,
sound can transmit through ceiling tiles and the partition wall
via resonant transmission. ASC Engineering studied the question,
and used IsoTile to address the issues of flanking and resonance.
ASC designed engineered assemblies for both existing as well as
new partition walls.
Both new construction and retrofit of existing construction can
benefit from the addition of IsoTile partition walls. We estimate
an STC of better than 45 with IsoTile, compared to an STC of 30-33
for typical partitions. That is a big improvement.