Sound System 7 (SRB sound board) – UL Des L569
Cushioned vinyl STC 58 / IIC 50
Carpet and pad STC 59 / IIC 73
Engineered wood laminate STC 58 / IIC 51
 Sound test evaluated with 2×10 wood joist spaced 16″ o.c.

Engineered Wood I-Joist
Sound System 4 (SRM-25 sound mat) – UL Des L570
Sheet vinyl STC 64 / IIC 58
Ceramic tile STC 66 / IIC 54
Engineered wood laminate STC 64 / IIC 62
 Sound test with 9-1/2″ engineered wood i-joist spaced 24″ o.c.

Sound System 10 (SRM-25 sound mat) –

Concrete slab and 1″ LEVELROCK Floor Underlayment
Sheet vinyl STC 56 / IIC 49
Carpet and pad IIC 77
Ceramic tile STC 56 / IIC 51
Engineered wood laminate STC 54 / IIC 50

TRADE READY® Steel Joist
1″ LEVELROCK Floor Underlayment
Sound System 8 (SRM-25 sound mat) – UL Des G551
Sheet vinyl STC 64 / IIC 55
Carpet and pad STC 63 / IIC 81
Ceramic tile STC 65/ IIC 51
Engineered wood laminate STC 63 / IIC 58

Sound System 2 (SRM-25 sound mat) – UL Des L521
Sheet vinyl 62 53
Cushioned vinyl 62 55
Carpet and pad 62 81
Ceramic tile 62 54
Engineered wood laminate 61 55
Sound test evaluated with 12″ truss spaced 24″ o.c.