Acousti-Mat® CLP
Acousti-Mat® CLP provides acoustical control for concrete high rise construction.

Therma-Floor® Sound Ratings Maxxon Green Mark


Sound Ratings - Tested Assemblies Maxxon Underlayments Insulation Ceiling Susp. on Chan. Ceiling Drywall  Floor Covering Rating Test Number
Wood Joist
w/ 5/8" (16 mm)
plywood subfloor,
2" x 10" (51 mm - 254 mm) joists
3/4" (19 mm)
3/4" (19 mm)
1" (25 mm)
3/4" (19 mm)
3/4" (19 mm)
1" (25 mm)
1-3/8" (35 mm)
3/4" (19 mm)
1-3/8" (35 mm)
1-3/8" (35 mm)
Yes
No
No
Yes
No
No
Yes
No
Yes
Yes
Yes
Yes
No
Yes
Yes
No
Yes
Yes
Yes
Yes
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
5/8" (16 mm)
5/8" (16 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
None
None
None
Carpet and Pad
Carpet and Pad
Carpet and Pad
Foam-Back Parquet
Cushioned Vinyl
Vinyl Composition Tile
Vinyl
60-STC
58-STC
50-STC
79-IIC
75-IIC
56-IIC
55-IIC
50-IIC
51-IIC
51-IIC
TL81-16
TL81-17
TL81-19
5-761-2
5-761-4
IN81-6
IN81-11
IN81-3
IN81-13
IN81-14
Wood Joist
w/ 5/8" (16 mm) plywood subfloor,
2" x 10" (51 mm - 254 mm) joists,
.4" (10.2 mm) Enkasonic® 
1-1/2" (38 mm) Yes Yes 5/8" (16 mm) Ceramic Tile 57-IIC IN88-2 
Wood Joist
w/ 3/4" (19 mm) OSB subfloor,
2" x 10" (51 mm - 254 mm) joists
3/4" (19 mm) Yes Yes 5/8" (16 mm) Wood Flooring 53-FIIC 90-0156.2
TJL® Truss
with 5/8" (19 mm) plywood subfloor
3/4" (19 mm)
3/4" (19 mm)
1" (25 mm)
1" (25 mm)
No
No
No
No
Yes
Yes
No
No
5/8" (16 mm)
5/8" (16 mm)
5/8" (16 mm)
5/8" (16 mm)
None
Cushioned Vinyl
None
Cushioned Vinyl
62-FSTC
61-IIC
51-FSTC
52-IIC
5-905
5-905-2
5-905-1
5-905-3
TJI® Joist
with 3/4" (19 mm) T&G OSB subfloor
3/4" (19 mm)

3/4" (19 mm)

3/4" (19 mm)

3/4" (19 mm)
 
Yes

Yes

Yes

Yes

 
Yes

Yes

Yes

Yes
 
5/8" (16 mm),
2 layers
5/8" (16 mm),
2 layers
5/8" (16 mm),
2 layers
5/8" (16 mm),
2 layers
 
None

Cushioned Vinyl

Cushioned Vinyl

Cushioned Vinyl
59-STC

54-IIC

50-IIC

51-IIC
TL96-250

IN96-28

IN96-30

IN96-29
Parallel Chord Truss
2" x 4" (51 x 102 mm) 12" deep
with 3/4" (19 mm) T&G OSB, .4"
(10.2 mm) Enkasonic®
1-1/2" (38 mm)
1-1/2" (38 mm)
Yes
Yes
Yes
Yes
5/8" (16 mm)
5/8" (16 mm)
None
Carpet and Pad
59-FSTC
83-FIIC
87-729-13
87-729-7
Truss Plate Institute
with 3/4" (19 mm) T&G plywood  subfloor
3/4" (19 mm)
3/4" (19 mm)
3/4" (19 mm)
Yes (blown-in)
Yes (blown-in)
Yes (blown-in)
Yes
Yes
Yes
5/8" (16 mm)
5/8" (16 mm)
5/8" (16 mm)
Vinyl
Vinyl
Ceramic
57-FSTC
50-FIIC
46-FIIC

98.67280.10
98.67280.1
98.67280.12

Precast Concrete 1/2" (13 mm)
1/2" (13 mm)
1/2" (13 mm)
No
No
No
No
No
No
No
No
No
None
Cushioned Vinyl
Direct Glued Carpet
58-FSTC
66-IIC
75-IIC
5-896
5-896-1
5-896-2
Metal Joist
9 1/2" (247 mm) w/ 3/4" (19mm) T&G OSB subfloor
3/4" (19 mm)
3/4" (19 mm)
3/4" (19 mm)

Yes
Yes
Yes

Yes
Yes
Yes

5/8" (16 mm)
5/8" (16 mm)
5/8" (16 mm)
Vinyl
Carpet and Pad
Carpet and Pad
49-FIIC
51-FSTC
73-FIIC
94-2278
94-2168.1
94-2168.2

SpaceJoist® Metal Web Truss
16" deep w/ 3/4" (19 mm) T&G OSB subfloor

3/4" (19 mm)
3/4" (19 mm)


3/4" (19 mm)
3/4" (19 mm)

Yes
Yes


Yes
Yes

Yes
Yes


Yes
Yes

5/8" (16 mm)
5/8" (16 mm)


5/8" (16 mm)
5/8" (16 mm)

Vinyl
Mannington 3/8"
laminate floating floor
over Quietwalk
Carpet and Pad
Carpet & Tile

51-FIIC
54-FIIC


70-FIIC
52-FSTC

 

51210-4
51210-5


51210-3
51210-1

FSTC - Field Sound Tranmission Class in accordance with ASTM E 336 and E 413.
STC - Sound Transmission Class in accordance with ASTM E 90 and E 413.
IIC - Impact Insulation Class in accordance with ASTM E 492.
FIIC - Field Impact Insulation Class in accordance with ASTM E 1007 and E 989.

All acoustical testing was done by Riverbank Testing Laboratories; Intest, Inc.; Twin City Testing Corporation; or D.L. Adams Associates, LTD. For type of floor covering used, channel spacing and other information, contact Maxxon for test reports by number. For good acoustical performance, the selection of a floor/ceiling system attaining a minimum 60 STC and IIC is recommended. Systems attaining ratings less than 55 STC and IIC provide only marginal acoustical performance. The Maxxon floor underlayments and Acousti-Mat® are but single components of an effective sound control system. No sound control system is better than its weakest component. Care must be taken in the installation of all components of construction to assure the ultimate designed acoustical performance.


Maxxon provides underlayment, gypcrete, gypsum concrete and other flooring underlayment products for construction, remodeling and renovation.
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