Acousticork_U38_ACS

Product catalog summary

Product Specifications
The product is a resilient acoustic underscreed made from agglomerated cork and recycled polyurethane foams, bonded with a PU elastomer. It is designed for impact noise insulation in floating screeds, with a density of 274 kg/m³ and an impact noise reduction of ΔLw 29-31 dB. Key features include impact noise reduction, thermal insulation, high load capacity, long-term resilience, and ease of handling due to its light and flexible nature.

Fire Classification
The product is classified as E/Efl according to EN 13501-1 and ISO 11925.

Thermal Properties
The thermal conductivity is 0.0546 W/mK as per ISO 8301.

Standard Dimensions
Available thicknesses are 12/6 mm and 17/8 mm, with dimensions of 1x11 m and 1x8 m, respectively. Other sizes are available upon request.

Physical and Mechanical Properties
The specific weight is 274 kg/m³, tensile strength is 207 KPa, and the Cp level is 2 mm for both thicknesses. These properties are measured according to ASTM standards.

Acoustical Results
The product achieves a ΔLw of 29 dB for 12/6 mm thickness and 31 dB for 17/8 mm thickness, with IIC values of 61 dB and 63 dB, respectively. These results are based on ISO and ASTM standards.

Dynamic Stiffness
The dynamic stiffness is 14 MN/m³ for 12/6 mm thickness and 12 MN/m³ for 17/8 mm thickness, as per ISO standards.

Installation Instructions
The installation involves placing the Acousticork U38 over a structurally sound and level subfloor, with a perimeter insulation barrier to prevent lateral noise propagation. The product should be unpacked 24 hours before installation and laid with the dimpled side down. Joints should be tightly butted and taped, avoiding mechanical fastening. A suitable screed should be cast over the installed U38.

General Notes
The data provided are typical values and not intended for use as purchasing specifications. Proper product selection is crucial to avoid equipment damage or personal injury. For specific applications, contact Amorim Cork Composites for recommendations.

Catalog excerpts

U38 Agglomerated cork blended with recycled PU based foam for high impact noise insulation in floating screed applications A C O U S T I C A L R E S U LT S P R O D U C T S P E C I F I C AT I O N “___mm resilient acoustic underscreed made of agglomerated cork and recycled polyurethane foams (PU) with PU elastomer bonding agent for impact noise insulation of floating screeds, with a density of 274kg/m³ and an impact noise reduction ΔLw of___ dB.” ➀ as per ISO 10140-3 and ISO 717-2 ➁ ASTM E492-09; ASTM E989-18; ASTM E2235-04 ▸▸ Impact noise reduction and thermal insulation properties ▸▸ High load capacity with low deflection ▸▸ Long-term resilience ▸▸ Produced from recycled and natural materials ▸▸ Very light and flexible material, easy to handle Others sizes available upon request THERMAL PROPERTIES Thermal Conductivity (W/mK) PHYSICAL AND MECHANICAL PROPERTIES Specific Weight (Kg/m³) ➀

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PHYSICAL AND MECHANICAL PROPERTIES Normalized impact pressure level L [dB] Note: Following ISO8013-1998 measured in Cantilever Test System Normalized impact sound pressure level of the reference floor with the floor covering under test Ln,r,0 Normalized impact sound pressure level of the Lab reference floor T E S T A P PA R AT U S ( Δ L W ) ❶ Concrete floating screed with 70mm thickness ❷ Agglomerated resilient layer - U38 ❸ Reinforced concrete slab of thickness 140mm DYNAMIC STIFFNESS Thickness (mm) Dynamic Stiffness (MN/m³) ➀ ➀ as per ISO 9052-1:1989; ISO 7626-5:1994

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G E N E R A L I N S TA L L AT I O N I N S T R U C T I O N S The following installation instructions are recommended by Amorim Cork Composites, but are not intended as a definitive project specification. They are presented in an attempt to be used with recommended installation procedures of the flooring manufacturers and screed. Room Conditions Temperature > -5ºC / Roommoisture content < 75%. Subfloor All subfloor work should be structurally sound, clear and level. The moisture content of the subfloor should not be more than 2.5% (CM) by weight measured on concrete subfloors. Perimeter Insulation...

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Acousticork_U38_ACS

Acousticork_U38_ACS

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