Description
Overview
170 Sound & Crack Isolation Mat is a rubberized acoustical underlayment for suitable interior hard-surface floors. It reduces impact-noise transmission and helps isolate non-moving substrate cracks up to 1/8 in. when installed as the specified full-floor assembly.
Features
- Combines sound reduction with crack isolation.
- Contains 94% post-consumer material.
- Low installed weight and limited added floor height.
- Installs with standard tools; tested to the listed acoustic and tile-assembly standards.
Values are transcribed from the displayed chart for the specified complete floor assembly and mat thickness. N/A is reproduced as printed. These ratings are not a promise for a different floor or ceiling assembly.
| Assembly and mat thickness | STC | IIC | Δ IIC | HIIC |
|---|---|---|---|---|
| Ceramic Tile on 6″ Slab with Ceiling; 3 mm | 63 | 62 | N/A | 63 |
| Ceramic Tile on 6″ Slab with Ceiling; 5 mm | 63 | 62 | N/A | 63 |
| Ceramic Tile on 6″ Slab with Ceiling; 10 mm | 63 | 62 | N/A | 64 |
| Ceramic Tile on 6″ Slab with No Ceiling; 3 mm | 53 | 50 | 20 | 50 |
| Ceramic Tile on 6″ Slab with No Ceiling; 5 mm | 54 | 51 | 21 | 51 |
| Ceramic Tile on 6″ Slab with No Ceiling; 10 mm | 55 | 52 | 21 | 56 |
| Ceramic Tile on 8″ Slab with No Ceiling; 5 mm | 57 | 53 | N/A | 56 |
| Ceramic Tile on 8″ Slab with No Ceiling; 10 mm | 56 | 54 | N/A | N/A |
| Ceramic Tile on 8″ Slab with No Ceiling; 12 mm | 57 | 56 | N/A | 60 |
| Ceramic Tile on 8″ Slab with Ceiling; 5 mm | 64 | 63 | N/A | 64 |
| Ceramic Tile on 2 x 10 with 1″ Gypsum; 5 mm | 61 | 54 | N/A | 55 |
| 1/2″ Hardwood on 6″ Slab; 3 mm | 50 | 55 | 25 | N/A |
| 1/2″ Hardwood on 6″ Slab; 5 mm | N/A | 55 | 24 | N/A |
| 1/2″ Hardwood on 6″ Slab; 10 mm | N/A | 55 | 27 | N/A |
| 1/4″ Vinyl on 6″ Slab; 3 mm | 51 | 56 | 24 | 59 |
| 1/4″ Vinyl on 6″ Slab; 5 mm | 52 | 56 | 24 | 60 |
| 1/4″ Vinyl on 6″ Slab; 10 mm | 51 | 59 | 28 | N/A |
STC - Sound Transmission Class, IIC - Impact Insulation Class, and HIIC - High-Frequency Impact Insulation Class
Specifications
- 3 mm roll: 4 x 50 ft.; 200 sq. ft.
- 5, 10 or 12 mm roll: 4 x 25 ft.; 100 sq. ft.
- Minimum tile size: 4 x 4 in.
- Exposure: Interior, horizontal dry applications
- Size: 3MM - 4' x 50' (200 sq. ft.); 5MM - 4' x 25' (100 sq. ft.); 10MM - 4' x 25' (100 sq. ft.); 12MM - 4' x 25' (100 sq. ft.)
Downloads
Applications
Use beneath the specified thin-bed tile, marble, stone, terrazzo or brick assembly over suitable concrete, mortar beds, interior exterior-glue plywood, backer board, terrazzo or existing tile/stone. Match mat thickness to the tested assembly and the project’s sound requirements.
Plan Your Installation
- Apply across the full substrate for the stated sound/crack function, and follow perimeter-isolation and bonding details.
- Do not compare acoustic numbers without their floor/ceiling assembly and thickness; a mat alone does not guarantee a room-level rating.
- Do not use as waterproofing or bridge expansion joints/structural movement cracks.
- Do not bond directly to OSB, particleboard, luan, Masonite or hardwood; use the specified epoxy for moisture-sensitive finishes.
Common Planning Questions
Are all the rolls 200 sq. ft.?
No. The 3 mm roll covers 200 sq. ft.; the listed thicker rolls cover 100 sq. ft.
