The test results from SP mean that the planner can determine the type of sound insulation that should be installed in a building. Field measurements in finished buildings confirm that most building structures with Granab floors installed will comply with sound class B, and in some cases even sound class A.
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
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
Granab subfloor system 9000N
For adjustable heights from 70 to 420 mm, excluding floor covering.