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Impact and airborne sound reduction System 7000N

Granab subfloor system installed on HD/F 270 mm.

Accredited sound insulation measurements according to SS-EN ISO 140-4-7 conducted by KM Akustikbyrån.

Configuration
Granab subfloor system installed on HD/F 270 mm and 22 mm chipboard & carpet.

Measurement results
Impact sound: Lnw+c 50 dB Airborne sound: Rw+c 59 dB

Configuration
Granab subfloor system installed on HD/F 270 mm and 22 mm chipboard, and 15 mm parquet above.

Measurement results
Impact sound: Lnw+c 48 dB Airborne sound: Rw+c 61 dB

Read more about acoustics

Impact and airborne sound insulation

Impact and airborne sound insulation in homes and offices

Impact sound reduction in the lab

Impact and airborne sound reduction System 3000N

Impact and airborne sound reduction System 7000N

Step and airborne noise reduction CLT

Offices and public buildings

Catalogs

Movies

Our systems

Granab subfloor system 3000N

For adjustable heights from 30 to 140 mm, excluding floor covering.

Granab subfloor system 7000N

For adjustable heights from 50 to 420 mm, excluding floor covering.

Granab Subfloor system 8000W

For adjustable height 85 – 470 mm, excl. Floor covering. For new construction and renovations, primarily for wooden flooring e.g., Cross-laminated timber.

Granab subfloor system 9000N

For adjustable heights from 70 to 420 mm, excluding floor covering.