Installation Guide

REV: 0417
Premium rubber underlayment for laminate, wood, tile and stone floors
Prep Work
AbsorbaSound Underlayment and the flooring material
must acclimatize, in their packaging, in the room where
they are installed for at least 48 hours, at temperature
of at least 65ºF. Before starting installation make sure
the subfloor is permanently dry and free of dirt, dust,
grease and other foreign matter. Concrete must be free
of efflorescence and not subject to hydrostatic pressure.
Subfloor moisture percentages should not exceed the
flooring manufacturers or MP Global’s recommendations
of 5 pounds per 1,000 square feet over 24 hours.
Wood Floor Construction
Subfloor should be properly leveled, structurally sound
and clean. Plywood subflooring should be of a good
grade. Variations in floor level over 1/8” within 3 feet
span should be leveled before installing underlayment.
Any nails or other protrusions should be pounded flat or
removed. Subfloor should have L360 for deflection.
Concrete Slab
Inspect concrete subfloor for any open cracks and fill with
a high grade patch. Remove any excess concrete lumps
or residue that may interfere with the installation of
AbsorbaSound. The concrete slab should be permanently
dry. A good quality concrete waterproof sealer may be
required if moisture in slab is too high.
AbsorbaSound Underlayment
Installation Instructions for
Laminate and Hardwood Flooring
Installation of AbsorbaSound
under Hardwood
Installation under glue down hardwood (solid and engineered)
AbsorbaSound underlayment needs to be adhered to the subfloor.
Use a high quality Urethane adhesive such as Bostik Best or
equivalent. Use 1/8” x 1/8” x 3/16” V-notched trowel (check for
100% transfer of adhesive and adjust to a larger trowel size of
conditions require it). Install AbsorbaSound rubber in opposite
direction to the hardwood floor. Start in a corner and roll out
AbsorbaSound rubber installing it flush to the walls. Roll up the
roll halfway and apply adhesive on exposed area, roll back over
adhesive and flat trowel any air pockets, continue with other side
the same way. Continue rolling out and gluing down AbsorbaSound
in the same manner until the entire area is covered. Make sure
the edges are tightly butted together, both side by side & end by
end. Use a 50–100 lb roller to fully bond the AbsorbaSound to
subfloor. After 8 hours or when adhesive is cured install glue down
hardwood flooring using the same adhesive as the bond coat
and follow manufactures written instructions. Install baseboard
slightly off floor to avoid flanking path.
Installation under nail down hardwood (solid and engineered)
Install AbsorbaSound rubber in opposite direction to the laminate
or hardwood floor. Start in a corner and roll out AbsorbaSound
installing it flush to the walls. Continue the next row in the same
manner until the whole room is covered. You can tape the seams
but it is not necessary. Install the hardwood per manufactures
written instructions. Install baseboard slightly off floor to avoid
flanking path.
Installation under laminate and floated engineered hardwood
Install AbsorbaSound rubber in opposite direction to the laminate
or hardwood floor. Start in a corner and roll out AbsorbaSound
installing it flush to the walls. Continue the next row in the same
manner until the whole room is covered. You can tape the seams
but it is not necessary. Install the floated laminate or engineered
hardwood per manufactures written instructions. Install baseboard
slightly off floor to avoid flanking path.