Use and Care Manual
INSTALLATION METHODS
FLOATING FLOORS
1. Roll out underlayment vapor barrier side up and butt seams together
2. Tape seams with provided lip & self seal tape
3. Click & lock floating floors over the top according to manufacturer
DOUBLE GLUED DOWN FLOORS
1. Roll out underlayment with the vapor barrier side up and butt
seams together
2. With a utility knife cut off the overhanging lip/flap before
applying adhesive
3. Adhere to subfloor using recommended flooring manufacturer’s
adhesive and recommended trowel size and install method
4. Roll over the underlayment with a 75 or 100 pound roller
5. Adhere flooring over the top using manufacturer’s recommended
adhesive and trowel size
*ENSURE TO READ THE COMPLETE INSTALLATION INSTRUCTIONS BEFORE INSTALLATION
ADVANTAGES
• Excellent sound rating: Delta
sound rating = 23
• Exceeds requirements for moisture vapor transmission
• Superior compression characteristics for support
• Reduces reflective noise & floor sound transmission
• Can use over concrete and wood subfloors
• Suitable over radiant heated floors
• Features lip & tape for easy and fast installation
• Eliminates minor subfloor imperfections
• Humidity, mold & mildew resistant
LIMITATIONS
SoundStep is not suitable for use as underlayment for:
• Ceramic tile • Carpet
• Sheet-vinyl • VCT
Installations over concrete in high moisture areas (vapor emission
rate above 3 lbs/ 1000 sq ft/ 24 hrs) will require additional protection
such as a concrete sealant or polyethylene vapor barrier.
APPROVED SUBSTRATES
• Dry, completely cured concrete (at least 28 days old)
• Concrete and masonry blocks
• Cement backer units (CBU)
• Cementitious screeds, leveling coats and mortar beds
• Waterproofing and crack-isolation membranes
• Wood, plywood, or OSB subfloors that meet NWFA Subfloor Guidelines
and Specifications, and meet applicable building codes.
• Cement terrazzo floors
PACKAGING
48” x 25’ (100 sq ft) do-it-yourself size rolls.
Rolls per pallet: 50
Pallets per truck: 64
Rolls per Truck: 3200
TECHNICAL DATA
• Weight ........................................................................ 5 lbs per roll
• Thickness ................................................................................2mm
• Density ....................................................................... 5# (+/-10%)
• WVTR ................................................... 0.16lbs/1000ft
2
/24 hour day
• Compression Resistance @ 25% (ASTM D1667) ............... 13.6psi
• Compression Resistance @ 30% (ASTM D1667) ............... 17.8psi
• Compression Resistance @ 50% (ASTM D1667) ............... 47.2psi
• Compression Set @ 25%
(ASTM D1668) ............................ 12.6%
• Breaking Strength ........................................................ 22.1 lbs
SOUND PROPERTIES
IMPACT SOUND TRANSMISSION
The method is designed to measure the impact sound transmission
performance of a floor-ceiling assembly in a controlled laboratory
environment.
IIC Flooring Sub-oor
67 Laminate over a 6” concrete suboor with a suspended ceiling
74 8mm WPC with ceiling assembly
SOUND TRANSMISSION LOSS
The sound-insulating property of a partition element is expressed in
terms of the sound transmission loss.
STC Flooring Sub-oor
63 Laminate over a 6” concrete suboor with a suspended ceiling
61 8mm WPC with ceiling assembly
DELTA TEST
Tests the impact insulation difference between a bare concrete subfloor
with no flooring materials and the same concrete subfloor with flooring
and underlayment.
Delta IIC Flooring
Up to 23 SoundStep XL under Wood Plastic Composite (WPC)
SSXLPE100BLSS