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LEVELROCK® Floor Underlayment Drawings and Construction Details
Detail Drawings — UL Rated Fire and Sound Systems
Open Web Wood Truss
Sound System 1 (no sound mat) – UL Des L521
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| Floor Covering |
STC |
IIC |
| None |
55 |
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| Sheet vinyl |
58 |
48 |
| Carpet and pad |
|
76 |
Note
Refer to UL Directory for proper RC-1 spacing based on placement of insulation. Sound test evaluated with 18" truss spaced 24" o.c.
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Sound System 2 (SRM-25 sound mat) – UL Des L521
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| Floor Covering |
STC |
IIC |
| Sheet vinyl |
62 |
53 |
| Cushioned vinyl |
62 |
55 |
| Carpet and pad |
62 |
81 |
| Ceramic tile |
62 |
54 |
| Engineered wood laminate |
61 |
55 |
Note
Refer to UL Directory for proper RC-1 spacing based on placement of insulation.Sound test evaluated with 12" truss spaced 24" o.c. Tile requires the use of crack isolation membrane.
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Sound System 3 (no sound mat) – UL Des L528
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| Floor Covering |
STC |
IIC |
| 24 oz. carpet and pad |
53 |
60 |
Note
Sound test evaluated with 12" truss spaced 24" o.c.
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Engineered Wood I-Joist
Sound System 4 (SRM-25 sound mat) – UL Des L570
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| Floor Covering |
STC |
IIC |
| Sheet vinyl |
64 |
58 |
| Ceramic tile |
66 |
54 |
| Engineered wood laminate |
64 |
62 |
Note
Refer to UL Directory for proper RC-1 spacing based on placement of insulation. Sound test evaluated with 9-1/2" engineered wood i-joist spaced 24" o.c.
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Sound System 5 (SRB sound board) – UL Des L570
View Larger |
| Floor Covering |
STC |
IIC |
| None |
65 |
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| Sheet vinyl |
65 |
54 |
| Ceramic tile |
66 |
51 |
| Engineered wood laminate |
65 |
61 |
Note
Refer to UL Directory for proper RC-1 spacing based on placementof insulation. Sound test evaluated with 9-1/2" engineered wood i-joist spaced 24" o.c.
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2 x 10 Wood Joist
Sound System 6 (SRM-25 sound mat) – UL Des L569
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| Floor Covering |
STC |
IIC |
| Sheet vinyl |
58 |
51 |
| Cushioned vinyl |
59 |
54 |
| Carpet and pad |
59 |
77 |
| Ceramic tile |
59 |
52 |
| Engineered wood laminate |
58 |
55 |
Note
Refer to UL Directory for proper RC-1 spacing based on placement of insulation. Sound test evaluated with 2x10 wood joist spaced 16" o.c.
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Sound System 7 (SRB sound board) – UL Des L569
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| Floor Covering |
STC |
IIC |
| Cushioned vinyl |
58 |
50 |
| Carpet and pad |
59 |
73 |
| Engineered wood laminate |
58 |
51 |
Note
Refer to UL Directory for proper RC-1 spacing based on placement of insulation. Sound test evaluated with 2x10 wood joist spaced 16" o.c.
Downloads
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TRADE READY® Steel Joist
Sound System 8 (SRM-25 sound mat) – UL Des G551
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| Floor Covering |
STC |
IIC |
| Sheet vinyl |
64 |
55 |
| Carpet and pad |
63 |
81 |
| Ceramic tile |
65 |
51 |
| Engineered wood laminate |
63 |
58 |
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6" Concrete Slab
Sound System 9 (no sound mat) – Concrete slab – D-900
Sound System 10 (SRM-25 sound mat) – Concrete slab and LEVELROCK Floor Underlayment – D-900
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| Floor Covering |
STC |
IIC |
| Sheet vinyl |
56 |
49 |
| Carpet and pad |
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77 |
| Ceramic tile |
56 |
51 |
| Engineered wood laminate |
54 |
50 |
| 1" LEVELROCK bare floor |
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50 |
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