Flooring

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Sound Ratings for AcoustiCORK®

Sound Control Underlayment Floor/Ceiling Assemblies

Subfloor Type AcoustiCORK
Product/Thickness 
Gypsum
Ceiling
Floor
Covering
Sound Ratings ∆ IIC Ratings
ASTM E-2179
Plywood w/Gypsum Concrete R60 - 6mm Yes Ceramic Tile 57 60 N/A
Plywood w/Gypsum Concrete R60 - 6mm Yes Glued Hardwood 54 59 N/A
Plywood w/Gypsum Concrete R60 - 6mm Yes Floating Laminate 53 60 N/A
Plywood w/Gypsum Concrete R60 - 6mm Yes Floating Hardwood 57 60 N/A
Plywood w/1.5" Mortar Bed R60 - 6mm Yes Ceramic Tile 50 61 N/A
TJI / OSB w/ Gypsum Concrete CorkPLUS 250 - 2.5mm Yes Glued Vinyl Plank 51 56 N/A
OSB w/Gypsum Concrete CorkPLUS 250 - 2.5mm Yes Glued Vinyl Plank 51 53 N/A
18" Truss/ OSB/ Gypsum Topping ECOx2 - 1.9mm Yes Glued Vinyl Plank 52 58 N/A
18" Truss/ OSB/ Gypsum Topping EZ-Floor LVT - 2mm Yes Glued Vinyl Plank 51 58 N/A
6” Concrete Slab R60 - 6mm Yes Ceramic Tile 61 60 N/A
6” Concrete Slab R60 - 6mm Yes Glued Hardwood 61 62 N/A
6” Concrete Slab R60 - 6mm Yes Nailed Wood 61 61 N/A
6” Concrete Slab R60 - 6mm Yes Floating Hardwood 63 60 N/A
6” Concrete Slab R60 - 6mm Yes Ceramic Tile 60 60 N/A
6” Concrete Slab R60 - 6mm No Floating Wood 50 52 22
8" Hollow Core Slab S130 - 13mm No Ceramic Tile 50 56 22**
6” Concrete Slab PR60 - 6mm Wave No Glued Hardwood 54 53 25
6” Concrete Slab RC500 - 5mm No Glued Hardwood 50 50 21
6” Concrete Slab RC1000 - 10mm No Ceramic Tile 50 54 22
6” Concrete Slab CorkPLUS 250 - 2.5mm Yes Glued Vinyl Plank 68 66 22
6” Concrete Slab CorkPLUS 250 - 2.5mm No Glued Vinyl Plank 51 51 22
8” Concrete Slab CorkPLUS 250 - 2.5mm No Glued Vinyl Plank 55 55 22**
6” Concrete Slab ECOx2 - 1.9mm Yes Glued Vinyl Plank 66 62 21
6” Concrete Slab ECOx2 - 1.9mm No Glued Vinyl Plank 50 53 21
8” Concrete Slab ECOx2 - 1.9mm No Glued Vinyl Plank 53 57 21
6” Concrete Slab EZ-Floor LVT - 2mm Yes Glued Vinyl Plank 69 66 21
6” Concrete Slab EZ-Floor LVT - 2mm No Glued Vinyl Plank 51 53 21
8” Concrete Slab EZ-Floor LVT - 2mm No Glued Vinyl Plank 54 55 21
6” Concrete Slab LVT Total Comfort - 1.8mm Yes Floating LVT Plank 67 60 20
6” Concrete Slab QuietComfort Plus - 2.5mm Yes Floating Laminate 69 67 N/A

The data provided in this table represents typical values. This information is not intended to be used as a purchasing specification and does not imply suitability for use in a specific application. Failure to select the proper product may result in either equipments damage or personal injury. Please contact us regarding specific application recommendations. Amorim Cork Composites expressly disclaims all warranties, including any implied warranties or merchantability or of fitness for a particular purpose. Amorim Cork Composites is not liable for any indirect special, incidental, consequential, or punitive damages as a result of using the information listed in this table. Any of its material specification sheets, its products or any future use or re-use of them by any person or entity.

Accessories - Underlayment

Flooring

Brochures, Installation Instructions and Performed Tests

Find Brochures, Installation Instructions and Performed about Underlayment in US market.
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Key Features

  • Why should I use an underlayment?

    Discover 8 reasons for using cork underlayment when renovating your home.

    why-use-underlay.jpg
  • Test Underlayment Sound Impact

    Listen the impact sound without Underlayment and the impact sound with hard surface Flooring and Underlayment
    IIC = 50.


    Play Click hear to listen the impact sound with flooring and underlayment.
    Play Click hear to listen the impact sound without underlayment.

The use of underlayments with many types of flooring product can provide significant improvements in terms of sound insulation and reduction, as well as thermal and walking comfort.

Our underlayments can consist of agglomerated cork granules or agglomerated cork mixed with other recycled materials. Such as: Tire Derived Rubber or High Density Polyurethane or EVA Foam granules. The underlayments can have different thicknesses, depending on the finished flooring used and the level of acoustic performance required for the application.
Underlayments not only improve the acoustical and thermal characteristics of the final floor, but also contribute to the levelling of the subfloor, creating a more satisfactory appearance of the finished flooring. Our underlayments are a great solution for new construction applications and or renovations of existing spaces.

Flooring Accessories

Underlayment

Tiles to place between the floor surface and flooring making the sound of your steps around the house as light as a feather.

Sound Ratings for AcoustiCORK®

Sound Control Underlayment Floor/Ceiling Assemblies

  Subfloor AcoustiCORK
Product/Thickness 
Suspended
Ceiling
Overlay Floor
Covering
Sound Ratings ∆ IIC Ratings
ASTM E-2179
WOOD JOIST
FLOOR SYSTEMS 
5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Ceramic Tile 57 60 N/A
5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Glued Wood 54 59 N/A
5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Floating Laminate 53 60 N/A
5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Floating Wood 57 60 N/A
5/8" Plywood R60 - 6mm Yes 1-1/2" Mortar Bed Ceramic Tile 50 61 N/A
5/8" Plywood R60 - 6mm Yes 1/2" Cement Backer Board Ceramic Tile 50 64 N/A
3/4" OSB CorkPLUS 250 - 2.5mm Yes 3/4" Gypsum Concrete  Glued Vinyl Plank 51 56 N/A
3/4" OSB CorkPLUS 250 - 2.5mm Yes 1-1/2" Gypsum Concrete  Glued Vinyl Plank 51 53 N/A
CONCRETE
FLOOR SYSTEMS 
4" Slab R60 - 6mm Yes 1-1/2" Mortar Bed Ceramic Tile 50 60 N/A
6" Slab R60 - 6mm Yes None Ceramic Tile 61 60 N/A
6" Slab R60 - 6mm Yes None Glued Wood 61 62 N/A
6" Slab R60 - 6mm Yes 3/4" Plywood Nailed Wood 61 61 N/A
6" Slab R60 - 6mm Yes None Floating Wood 63 60 N/A
6" Slab R60 - 6mm Yes 1/2" Cement Backer Board Ceramic Tile 60 60 N/A
6" Slab R25 - 2.5mm Yes None Floating Wood 62 59 N/A
8" HC Slab R60 - 6mm No None Floating Wood 50 52 22
6" Slab S130 - 13mm No None Ceramic Tile 50 56 22**
6" Slab AC55 Plus - 12.5mm No None Glued Wood 54 52 26
6" Slab PR60 - 6mm Wave No None Glued Wood 54 53 25
8" Slab CRC950 - 9.5mm Yes None Ceramic Tile 52 56 22**
6" Slab Quiet Comfort - 2.5mm No None Floating Laminate 69 67 N/A
6" Slab RC500 - 5mm No None Glued Wood 50 50 21
6" Slab RC1000 - 10mm No None Glued Wood 50 54 22
8" Slab RR300 - 3.2mm No None Floating Wood 55 54 23**
8" Slab CorkPLUS 250 - 2.5mm No None Glued Vinyl Plank 55 55 23**
6" Slab CorkPLUS 250 - 2.5mm No None Glued Vinyl Plank 51 51 22
6" Slab EZ-Floor LVT - 2mm Yes None Glued LVT Plank 69 66 22
8" Slab PURC 200 - 2mm No None Floated LVT Plank 54 53 22**

The data provided in this table represents typical values. This information is not intended to be used as a purchasing specification and does not imply suitability for use in a specific application. Failure to select the proper product may result in either equipments damage or personal injury. Please contact us regarding specific application recommendations. Amorim Cork Composites expressly disclaims all warranties, including any implied warranties or merchantability or of fitness for a particular purpose. Amorim Cork Composites is not liable for any indirect special, incidental, consequential, or punitive damages as a result of using the information listed in this table. Any of its material specification sheets, its products or any future use or re-use of them by any person or entity.

Sound Ratings for AcoustiCORK®

Sound Control Underlayment Floor/Ceiling Assemblies

  est
Reference 
Subfloor AcoustiCORK
Product/Thickness 
Suspended
Ceiling
Overlay Floor
Covering
Sound Ratings ∆ IIC Ratings
ASTM E-2179
IIC STC
WOOD JOIST
FLOOR SYSTEMS 
RAL IN95-11-RAL TL95-118 5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Ceramic Tile 57 60 N/A
RAL IN95-19-RAL TL95-126 5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Glued Wood 54 59 N/A
RAL IN95-15-RAL TL95-122 5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Floating Laminate 53 60 N/A
RAL IN98-37-RAL TL98-186 5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Floating Wood 57 60 N/A
RAL IN94-20-RAL TL94-296 5/8" Plywood R60 - 6mm Yes 1-1/2" Mortar Bed Ceramic Tile 50 61 N/A
RAL IN95-19-RAL TL94-274 5/8" Plywood R60 - 6mm Yes 1/2" Cement Backer Board Ceramic Tile 50 64 N/A
NGC 7012149-NGC 5012073 3/4" OSB CorkPLUS 250 - 2.5mm Yes 3/4" Gypsum Concrete  Glued Vinyl Plank 51 56 N/A
100579518CTR-001-100579518CTR-002 3/4" OSB CorkPLUS 250 - 2.5mm Yes 1-1/2" Gypsum Concrete  Glued Vinyl Plank 51 53 N/A
CONCRETE
FLOOR SYSTEMS 
RAL IN95-3-RAL TL95-256 4" Slab R60 - 6mm Yes 1-1/2" Mortar Bed Ceramic Tile 50 60 N/A
RAL IN95-37-RAL TL95-256 6" Slab R60 - 6mm Yes None Ceramic Tile 61 60 N/A
RAL IN95-43-RAL TL95-366 6" Slab R60 - 6mm Yes None Glued Wood 61 62 N/A
RAL IN95-42-RAL TL95-365 6" Slab R60 - 6mm Yes 3/4" Plywood Nailed Wood 61 61 N/A
RAL IN95-41-RAL TL95-364 6" Slab R60 - 6mm Yes None Floating Wood 63 60 N/A
RAL IN95-2-RAL TL95-40 6" Slab R60 - 6mm Yes 1/2" Cement Backer Board Ceramic Tile 60 60 N/A
RAL IN95-40-RAL TL95-363 6" Slab R25 - 2.5mm Yes None Floating Wood 62 59 N/A
RAL IN98-4-RAL TL98-27 8" HC Slab R60 - 6mm No None Floating Wood 50 52 22
RAL IN98-41-RAF TL98-280 6" Slab S130 - 13mm No None Ceramic Tile 50 56 22**
RAL IFC904-002-RAL TL98-27 6" Slab AC55 Plus - 12.5mm No None Glued Wood 54 52 26
NGC 7007027/58-NGC 5007028 6" Slab PR60 - 6mm Wave No None Glued Wood 54 53 25
NGC 7007070-NGC 5007031 8" Slab CRC950 - 9.5mm Yes None Ceramic Tile 52 56 22**
NGC 7008087-NGC 5007039 6" Slab Quiet Comfort - 2.5mm No None Floating Laminate 69 67 N/A
NGC 7008139/40-NGC 5008072 6" Slab RC500 - 5mm No None Glued Wood 50 50 21
NGC 7008137/38-NGC 5008071 6" Slab RC1000 - 10mm No None Glued Wood 50 54 22
NGC 7008133-NGC 5008068 8" Slab RR300 - 3.2mm No None Floating Wood 55 54 23**
NGC 7011072-NGC 5011043 8" Slab CorkPLUS 250 - 2.5mm No None Glued Vinyl Plank 55 55 23**
NGC 7012150/51-NGC 5012074 6" Slab CorkPLUS 250 - 2.5mm No None Glued Vinyl Plank 51 51 22
NGC 7012099/51-NGC 5012099 6" Slab EZ-Floor LVT - 2mm Yes None Glued LVT Plank 69 66 22
NGC 7012089/51-NGC 5012038 8" Slab PURC 200 - 2mm No None Floated LVT Plank 54 53 22**

The data provided in this table represents typical values. This information is not intended to be used as a purchasing specification and does not imply suitability for use in a specific application. Failure to select the proper product may result in either equipments damage or personal injury. Please contact us regarding specific application recommendations. Amorim Cork Composites expressly disclaims all warranties, including any implied warranties or merchantability or of fitness for a particular purpose. Amorim Cork Composites is not liable for any indirect special, incidental, consequential, or punitive damages as a result of using the information listed in this table. Any of its material specification sheets, its products or any future use or re-use of them by any person or entity.

Sound Ratings for AcoustiCORK® Sound Control Underlayment Floor/Ceiling Assemblies

Units

Sound Control Underlayment Floor/Ceiling Assemblies

  est
Reference 
Subfloor AcoustiCORK
Product/Thickness 
Suspended
Ceiling
Overlay Floor
Covering
Sound Ratings ∆ IIC Ratings
ASTM E-2179
IIC STC
WOOD JOIST
FLOOR SYSTEMS 
RAL IN95-11-RAL TL95-118 5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Ceramic Tile 57 60 N/A
RAL IN95-19-RAL TL95-126 5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Glued Wood 54 59 N/A
RAL IN95-15-RAL TL95-122 5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Floating Laminate 53 60 N/A
RAL IN98-37-RAL TL98-186 5/8" Plywood R60 - 6mm Yes 1-1/2" Gypsum Concrete  Floating Wood 57 60 N/A
RAL IN94-20-RAL TL94-296 5/8" Plywood R60 - 6mm Yes 1-1/2" Mortar Bed Ceramic Tile 50 61 N/A
RAL IN95-19-RAL TL94-274 5/8" Plywood R60 - 6mm Yes 1/2" Cement Backer Board Ceramic Tile 50 64 N/A
NGC 7012149-NGC 5012073 3/4" OSB CorkPLUS 250 - 2.5mm Yes 3/4" Gypsum Concrete  Glued Vinyl Plank 51 56 N/A
100579518CTR-001-100579518CTR-002 3/4" OSB CorkPLUS 250 - 2.5mm Yes 1-1/2" Gypsum Concrete  Glued Vinyl Plank 51 53 N/A
CONCRETE
FLOOR SYSTEMS 
RAL IN95-3-RAL TL95-256 4" Slab R60 - 6mm Yes 1-1/2" Mortar Bed Ceramic Tile 50 60 N/A
RAL IN95-37-RAL TL95-256 6" Slab R60 - 6mm Yes None Ceramic Tile 61 60 N/A
RAL IN95-43-RAL TL95-366 6" Slab R60 - 6mm Yes None Glued Wood 61 62 N/A
RAL IN95-42-RAL TL95-365 6" Slab R60 - 6mm Yes 3/4" Plywood Nailed Wood 61 61 N/A
RAL IN95-41-RAL TL95-364 6" Slab R60 - 6mm Yes None Floating Wood 63 60 N/A
RAL IN95-2-RAL TL95-40 6" Slab R60 - 6mm Yes 1/2" Cement Backer Board Ceramic Tile 60 60 N/A
RAL IN95-40-RAL TL95-363 6" Slab R25 - 2.5mm Yes None Floating Wood 62 59 N/A
RAL IN98-4-RAL TL98-27 8" HC Slab R60 - 6mm No None Floating Wood 50 52 22
RAL IN98-41-RAF TL98-280 6" Slab S130 - 13mm No None Ceramic Tile 50 56 22**
RAL IFC904-002-RAL TL98-27 6" Slab AC55 Plus - 12.5mm No None Glued Wood 54 52 26
NGC 7007027/58-NGC 5007028 6" Slab PR60 - 6mm Wave No None Glued Wood 54 53 25
NGC 7007070-NGC 5007031 8" Slab CRC950 - 9.5mm Yes None Ceramic Tile 52 56 22**
NGC 7008087-NGC 5007039 6" Slab Quiet Comfort - 2.5mm No None Floating Laminate 69 67 N/A
NGC 7008139/40-NGC 5008072 6" Slab RC500 - 5mm No None Glued Wood 50 50 21
NGC 7008137/38-NGC 5008071 6" Slab RC1000 - 10mm No None Glued Wood 50 54 22
NGC 7008133-NGC 5008068 8" Slab RR300 - 3.2mm No None Floating Wood 55 54 23**
NGC 7011072-NGC 5011043 8" Slab CorkPLUS 250 - 2.5mm No None Glued Vinyl Plank 55 55 23**
NGC 7012150/51-NGC 5012074 6" Slab CorkPLUS 250 - 2.5mm No None Glued Vinyl Plank 51 51 22
NGC 7012099/51-NGC 5012099 6" Slab EZ-Floor LVT - 2mm Yes None Glued LVT Plank 69 66 22
NGC 7012089/51-NGC 5012038 8" Slab PURC 200 - 2mm No None Floated LVT Plank 54 53 22**

The data provided in this table represents typical values. This information is not intended to be used as a purchasing specification and does not imply suitability for use in a specific application. Failure to select the proper product may result in either equipments damage or personal injury. Please contact us regarding specific application recommendations. Amorim Cork Composites expressly disclaims all warranties, including any implied warranties or merchantability or of fitness for a particular purpose. Amorim Cork Composites is not liable for any indirect special, incidental, consequential, or punitive damages as a result of using the information listed in this table. Any of its material specification sheets, its products or any future use or re-use of them by any person or entity.