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Quiet-Floor NP™

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Sound Control Floor Underlayment

  • Cost Effective
  • Recycled Rubber Material
  • High Performance Noise Control

How do you keep your floors soundproof? No secret. Install QUIET FLOOR NP sound control floor underlayment for excellent results in floor isolation and superior sound control.

Quiet Floor NP™ Downloads

Product Testing & Information


Product Specs

MATERIAL

Recycled rubber

PATTERN

Flat sanded face, performance engineered, diagonal grooves

FEATURES

Grooved underside minimizes underlay contact between finished materials and sub-floor. Reduces ceramic tile breakage caused by cracking and fissuring of concrete slabs. Excellent floor to floor soundproofing.

APPLICATIONS

For use as a subfloor in new and renovation construction projects. Reduces impact noise and vibrations while reducing airborne sound transmission. Great under hardwood, ceramic or carpet. Can be used as finished floor.

THICKNESS

1/2″

SIZES

Nominal 4′×6′

WEIGHT

65 lb.

COLOR

Black

THERMAL RESISTANCE

R 2/inch 100% vapor barrier

INSTALLATION

Use Mapei W55 adhesive to Adhere, the “groove side” of Quiet Floor to your sub floor. Allow 24-48 hours for adhesive to cure. It is recommended that another layer of marine grade or exterior grade plywood be adhered (with Mapei W55) to the “flat” or top side of the underlayment before installing the finish floor. In some installations, a finish floor can be adhered to the top of the Quiet Floor NP. Please consult a sales representative with specific installation questions.

3/4 in Hardwood Floor on 1 1/2 in Concrete Slab and Wooden Framework
3/4 in Hardwood Floor on Wooden Framework
3/4 in Hardwood Floor on Wooden Framework
Diagram Key
1 3/4″ Wood Flooring
2 Floor Furring Strip – 5/8″×3-1/2″ every 10″
3 Quiet Floor NP – 1/2″ Sanded Top
4 Light Concrete Floor Slab – 1-1/2″
5 Insulation Board
6 3/4″ or 5/8″ Plywood
7 Joist or Beam
8 Acoustic Wool – 6″
9 Flexible Bar
10 2 Layers Gypsum Board
11 1 Layer Gypsum Board
12 Ceramic
13 Recommended Cement
14 Recommended Glue
15 Concrete Floor Slab – 11″
Ceramic Tile on Concrete Slab
Acoustical Performance
IIC STC
Diagram 1 63 70
Diagram 2 55 61
FIIC FSTC
Diagram 3 64 55
Diagram 4 57*
*Note: Original FIIC for concrete slab only FIIC 37