Official Website for CeraZorb Green Tile and Wood Underlayment

Acoustical Tests

Note: The Δ IIC is a new ASTM test that measures the improvement in decibels. Example a Δ IIC 21 would mean a 21 point improvement . The Δ IIC tests is only tested on a 6" concrete slab with no ceiling below.

Product	Floor / Ceiling Assembly Description	Floor Covering	IIC Rating	Test #
CeraZorb Green	6" concrete slab with no ceiling below	Ceramic Tile	IIC 49	CG-3A
CeraZorb Green	6" concrete slab with no ceiling below	Ceramic Tile	Δ IIC 20	CG-3B
CeraZorb Green	Wood frame construction 2 x 16" - 24" centers, 5/8" T&G plywood w/ 1 1/2" lightweight concrete topping- batt insulation, RC-1 channel, 5/8" GWB	Floated Engineered Hardwood	IIC 57	CG-3W
CeraZorb Green	6" concrete slab with with ceiling below	Double Glued Engineered Hardwood	IIC 60	CG-CW3