Knight-Celotex

 
Minimize your sound transmission by using SoundStop® Underlayment in hardwood and laminate floors.
Reduces noise within the room and above to below:
Deadens "clacking" noise from walking, significantly reduces foot fall noise, achieves Sound Transmission Class (STC) rating of up to 53, and has an Impact Insulation Class (IIC) rating of up to 57.

Most affordable for significant noise reduction: Compare cost and noise control with foam, cork and other underlayments.

Environmentally friendly: Made of 93% natural wood materials and a supporter of the Green Building Initiative™ (GBI).

Protects flooring investments: SoundStop® Underlayment helps eliminate breakage of laminate click connections while maintaining a high compressive strength of up to 4,100 lbs. per sq. foot. SoundStop® Underlayment also levels minor sub-floor irregularities up to approximately 1/8" (3mm).

Thermal insulation: SoundStop® Underlayment helps keep floors warm. Wood fiberboard has a worldwide reputation for thermal insulation.

Learn More About SoundStop
SoundStop® Underlayment Install
"SoundStop® Underlayment solves my customers' noise problems and adds great value at a low price. I know the job will be a success the first time."
- Justin Lewellyn
Site Foreman
Enfield, New Hampshire

Installing SoundStop® Underlayment in a typical floor system.

Finished flooring: 5/16" laminated flooring is laid to avoid seams with SoundStop® Underlayment.

Sub-flooring: 3/4" tongue and groove wood structural panel sub-floor. SoundStop® Underlayment is laid over sub-floor with no fasteners or adhesives, avoiding shared seams. If sub-floor is mineral based (e.g. concrete), a 2mm moisture barrier is recommended.

Framing: 2" x 10" floor joists, 16" o.c.

Ceiling: 5/8" Type X Gypsum wall board with seams taped.

SoundStop® Underlayment Diagram
Brochure

MSDS Sheet

Install Guide

Product Comparison

Sound Loss Test

ASTM E 90 Test
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