Use and Care Manual

Installation
1. Open windows at least 2” on a daily basis to allow
for the evaporation of moisture and avoid a prolonged
drying time of any gypsum floor underlayment.
2. Seams between acoustical underlayment sheets,
as well as between acoustical underlayment and
perimeter isolation
strips, must be taped
to prevent seepage
of adhesive, thinset
or grout.
3. Perimeter isolation
strips must be
installed before
placing and
trimming acoustical
underlayment (see
Diagram 1).
4. Before applying the sealer or installing the
finished floor goods, be sure that the gypsum floor
underlayment is sufficiently dry by using the plastic
sheet test method per ASTM D4263 or a method
recommended by the gypsum floor underlayment
manufacturer.
5. Install the finished floor in accordance with the
flooring manufacturer’s directions. After installing the
finished floor, trim the excess perimeter isolation strips
around the entire perimeter of the finished floor
1. Assume that the walls the QuietSound™ acoustical
underlayment is butting up against are not square.
Using a chalk line, create a starting point for an edge
of the material to follow.
2. Remove the shrink-wrap from a roll of QuietSound™
acoustical underlayment and unroll it onto the
floor. Shake the material once it is unrolled to help
it to relax.
3. Place the QuietSound™ acoustical underlayment
perpendicular to the subsequent installation direction
of the flooring or topping material (see Diagram 2).
4. To properly fit the surface area to be covered, trim the
ends of each section as necessary. Section ends may
be trimmed to the exact dimensions required (e.g.,
joints with walls, etc.).
Diagram 2: Installation Direction
Typical Installation
Perimeter Isolation Strips
5. Align the lengthwise edge of the material exactly with
that of the adjacent underlayment. Do not overlap
edges (see Diagram 3).
6. When using grouted or fully adhered flooring materials,
QuietSound™ acoustical underlayment must be adhered
to the substrate with a suitable adhesive, preferably
QuietGrip™. To comply with U.S. Rubber’s warranty,
substitute adhesives must be submitted to U.S. Rubber
for approval.
7. Fold back the first half of the material roll lengthwise.
Spread adhesive using proper notch trowel.
Temperature and humidity affect the open time of
adhesive. Monitor on-site conditions and adjust open
time accordingly. Carefully lay the material onto the
wet adhesive, dropping it may trap air which may
negatively affect adhesion.
8. Fold back second half of first material roll and first half
of second
9. Spread the adhesive. At seam area, spread adhesive
at a 90 degree angle to the seam to prevent excessive
adhesive oozing up to the surface of the material.
10. Continue the process for each consecutive drop.
Work at a pace where the folded material is laid into
wet adhesive.
11. Never leave adhesive ridges or puddles. They may
seep through the material.
12. Use a 30 to 50 lb. roller to roll over the floor within 45
minutes to ensure proper transfer of adhesive. Overlap
each pass of the roller by 50% of the previous pass to
ensure that the floor is properly rolled.