They had available only the NRC values for the 50S and 25S Knauf Earthwool Acoustic Roll and the Knauf Earthwool Building Slab RS33, RS45, RS60, RS80, RS100, RS140., all at various thicknesses. Knauf Earthwool Building Slab - Absorption Co-efficients Knauf Earthwool Acoustic Roll - Absorption Co-efficients ![]() Knauf Earthwool Building Slab RS45 (All thicknesses) – Nominal Density 45Kg/m³ġ00mm Knauf Earthwool Acoustic Roll – Nominal Density 10Kg/m³ħ5mm Knauf Earthwool Acoustic Roll – Nominal Density 10Kg/m³Ħ3mm Knauf Earthwool Acoustic Roll – Nominal Density 13Kg/m³ĥ0mm Knauf Earthwool Acoustic Roll – Nominal Density 16Kg/m³Ģ5mm Knauf Earthwool Acoustic Roll – Nominal Density 19.5Kg/m³Īnd attached are the NRC values for some of these products. ![]() ![]() Used along with the NRC values perhaps we can make an informed guess at some GFR's for use in the porous absorber calculations (?).įrom Knauf Technical Advisor 17th June 2020 : I recently contacted the UK office for Knauf and received these responses.Īlthough they did not have GFR figures, I thought it worth posting the numbers here anyway as they detail different densities for various thicknesses of the same product.
0 Comments
Leave a Reply. |