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WarmlyYours Cork underlayment system is an excellent
insulation choice when electric oor heating is installed under
laminate over a concrete slab, and is highly recommended for
acoustical impact isolation and crack suppression.
Cork is durable, lightweight, and is easy to install, and is the
ideal solution under our Environ II™ oor heating system.
Cork features:
• Economically Priced
• Recommended under Environ II™ oor heating system
• Creates a thermal break and increases energy efciency
• VOC-free and Environmentally Friendly
• Cut in 2’ x 3’ sheets to ensure at installation (no curling or lifting)
• 1/4” (6mm) thick by 24” (61mm) wide by 36” (91mm) long
• Limited 10-year warranty
Uses and Applications
Cork should be considered when installing electric oor heat under
carpet, laminate oors or oating wood oors, as well as some
applications where you are setting tile or stone ooring – especially
where acoustical impact isolation or crack suppression is needed.
Cork is ideal for residential and light commercial applications, and is
not recommended for use under self-leveling underlayment(s).
Certifications
• ICBO Evaluation Report No. 5314
• City of Los Angeles Research Report No.
RR25323-A Technical Data
TEST ASTM TEST RESULT
Bond Strength C482 Modied PSI of 80
Structural Performance C627-88
WITHOUT CBU 1.5 RESIDENTIAL
With CBU Heavy
Flame Spread E84-91a Class “A”
Thermal Insulation C177-85 5mm = .72 R value
Cork Underlayment
Installation Support •[phone] • www.WarmlyYours.com
Sound Ratings for AcoustiCORK® Sound Control Underlayment Floor/Ceiling Assemblies
Test Reference Suboor
AcoustiCORK
Thickness
Suspended
Ceiling
Overlay Floor Covering
Sound
Ratings
IIC STC
WOOD
FLOOR
JOIST
SYSTEM
RAL IN95-11•RAL TL95-118 5/8” Plywood 6mm Yes 1 1/2” Gypsum Concrete Ceramic Tile 57 60
RAL IN95-19•RAL TL95-126 5/8” Plywood 6mm Yes 1 1/2” Gypsum Concrete Parquet Wood 54 59
RAL IN95-15•RAL TL95-122 5/8” Plywood 6mm Yes 1 1/2” Gypsum Concrete Laminate Floor 53 60
RAL IN98-37•RAL TL98-186 5/8” Plywood 6mm Yes 1 1/2” Gypsum Concrete Floating Wood 57 60
CONCRETE
FLOOR
SYSTEM
RAL IN95-37•RAL TL95-256 6” Slab 6mm Yes None Ceramic Tile 61 60
RAL IN95-43•RAL TL95-366 6” Slab 6mm Yes None Glued Wood 61 62
RAL IN95-42•RAL TL95-365 6” Slab 6mm Yes None Nailed Wood 61 61
RAL IN95-41•RAL TL95-364 6” Slab 6mm Yes None Floating Wood 63 60
RAL IN98-40•RAL TL98-27 6” Slab 6mm No None Floating Wood 50 52