USG LEVELROCK BRAND SOUND REDUCTION BOARD SRB

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1 USG Tile & Flooring Solutions SUBMITTAL SHEET USG LEVELROCK BRAND SOUND REDUCTION BOARD SRB Economical, high-performance sound reduction board Provides excellent sound control Sound systems meet or exceed International Building Code requirements for 50 IIC and 50 STC Qualifies for LEED credits Water-resistant, smooth coated finish 1-1/8 in. total system thickness minimizes floor transitions Robinson tested for system durability DESCRIPTION USG Levelrock Brand SRB Sound Reduction Board is an economical sound control material used to increase IIC and STC levels in all types of construction. With its thin 3/8 in. profile, USG Levelrock SRB sound reduction board, when topped with 3/4 in. USG Levelrock engineered cementitious underlayment, minimizes transition height changes between rooms. This sound reduction board system has also achieved a residential rating on the Robinson floor test (ASTM C627). USG Levelrock SRB sound reduction board can also contribute to sustainable building practices under the LEED (Leadership in Energy and Environmental Design) Green Building Rating System, the voluntary, consensus-based standard to support and certify successful green building design, construction and operations. The recycled content of SRB sound reduction board (49.7%, of which 17% is post-consumer material) can help a building achieve a LEED rating. LIMITATIONS 1. Do not use in exterior applications. 2. Do not use as a wear surface. 3. Do not use mechanical fasteners to install the sound attenuation mat as mechanical fasteners conduct impact sound, eliminating acoustical isolation. 4. Do not install where continuous exposure to moisture is a possibility. 5. Structure shall be designed so that deflection does not exceed L/240 from combined dead and live loads and L/360 from live loads. Certain floor coverings such as marble, limestone, travertine and wood may have more restrictive deflection limits. Consult the appropriate floorcovering manufacturer. 6. For wood subfloors, do not install on plywood/osb subfloors lacking tongue and groove edges without back-blocking. 7. Do not install when temperature is below 50 F. 8. USG Levelrock should be poured to a minimum 3/4 in. thickness over USG Levelrock SRB sound reduction board.

2 INSTALLATION USG Levelrock SRB sound reduction board can be used over a variety of subfloors including plywood, OSB and concrete. The subfloor must be clean, dry and free of construction debris and dirt. The building temperature should be maintained at a 50 F minimum. During the entire process of installation, the building must be enclosed and USG Levelrock SRB sound reduction board protected from the environment. USG Levelrock SRB sound reduction board should be primed with USG Levelrock Wood Primer prior to the installation of the underlayment. USG Levelrock Perimeter Isolation Strip must be installed between the sound reduction board and walls or floor protrusions. The perimeter isolation strip must be installed so that there is no leakage of USG Levelrock as any breach will compromise the sound system performance. Follow the detailed drawings in Assemblies (pg. 3) for specific instructions for USG Levelrock SRB sound reduction board, or contact USG for further details. USG Levelrock must be installed at a 3/4-in. minimum thickness. After the floor underlayment has set, cut off excess perimeter isolation strip (and remove staples if used). Protect USG Levelrock underlayment floors poured over USG Levelrock SRB sound reduction board from heavy trade traffic loads (i.e. loaded drywall carts, heavy tool cabinets, etc.) with plywood. FINISH FLOORING 1. Install hardwood, tile or natural stone according to ANSI A108.5, leaving a 1/4 in. gap between the flooring material and wall. Fill the gap with acoustical sealant to prevent lateral sound transmission. 2. With vinyl and carpet, no gaps are required between the flooring material and walls. Carpet tack strips should be installed at least 1/4 in. from the edge of the poured USG Levelrock floor underlayment. 3. Shim baseboards 1/8 in. above the finished floor and fill the gap underneath with acoustical sealant. For further details on installation requirements, specifications and the most up-to-date product information, please see usg.com, pourlevelrock.com and usgdesignstudio.com. PRODUCT DATA Size (ft.) 4 x 4 Boards/pallet 100 Coverage per pallet (sq. ft./pallet) 1600 Mat thickness (inches) 3/8 Mat thickness (mm) 9.5 Weight (lbs./sq. ft.) 0.72 TEST DATA IIC: Additional 5-8 points (depending on floor covering) STC: Additional 2-3 points NOTE: Contact USG or Alcorp Marketing for detailed test results of various systems. Tests were conducted under laboratory conditions according to ASTM E90 and E492 in a NVLAP-accredited facility (NVLAP Lab Code: ). Actual field conditions may vary from laboratory conditions and affect results. Consult ASTM E1007 for a list of variable conditions.

3 ASSEMBLIES WOOD SUBFLOOR USG LEVELROCK INSTALLED BEFORE DRYWALL 1 /2" or 5 /8" USG Sheetrock Brand gypsum panel wood stud double plate 1 1 /2" USG Levelrock perimeter isolation strip - trim after floor installation fastener 3 /8" from edge of drywall 1 /4" USG Sheetrock Brand acoustical sealant minimum USG Levelrock 3 /8" USG Levelrock SRB sound reduction board 3 /4" wood subfloor USG Levelrock SRB Sound Reduction Board Over Plywood USG Levelrock Poured Before Drywall WOOD SUBFLOOR USG LEVELROCK INSTALLED AFTER DRYWALL 1 /2" or 5 /8" USG Sheetrock Brand gypsum panel wood stud base plate USG Levelrock perimeter isolation strip - trim after floor installation fastener 3 /8" from edge of drywall minimum USG Levelrock 3 /8" USG Levelrock SRB sound reduction board wood subfloor USG Levelrock SRB Sound Reduction Board Over Plywood USG Levelrock Poured After Drywall

4 SUBMITTAL APPROVALS Job Name Contractor Date PRODUCT INFORMATION See usg.com or pourlevelrock.com for the most up-to-date product information. LEED INFORMATION For the most up-to-date information on LEED rating systems, project certification and the U.S. Green Building Council, please visit usgbc.org. DANGER May cause cancer. May damage lungs by prolonged or repeated exposure to respirable crystalline silica. Do not handle until all safety precautions have been read and understood. Avoid breathing dust. Use only in a wellventilated area, wear a NIOSH/MSHA-approved respirator. Cut and trim with a razor knife or hand saw to minimize dust levels. If a router is used it must have a dust collection system. Wear protective gloves/protective clothing/eye protection. If exposed or concerned: Get medical advice/ attention. If eye contact occurs, flush thoroughly with water for 15 minutes. Dispose of in accordance with local, state, and federal regulations. For more information call Product Safety: or see the SDS at usg.com. KEEP OUT OF REACH OF CHILDREN. TRADEMARKS The trademarks USG, LEVELROCK, SHEETROCK, SRB, IT S YOUR WORLD. BUILD IT., the USG logo, the design elements and colors and related marks are trademarks of USG Corporation or its affiliates. LEED is a registered trademark of U.S. Green Building Council. NOTICE We shall not be liable for incidental or consequential damages, directly or indirectly sustained, nor for any loss caused by application of these goods not in accordance with current printed instruction or for other than the intended use. Our liability is expressly limited to replacement of defective goods. Any claim shall be deemed waived unless made in writing to us within thirty (30) days from date it was or reasonably should have been discovered. SAFETY FIRST! Follow good safety/industrial hygiene practices during instal- lation. Wear appropriate personal protective equipment. Read SDS and literature before specification and installation. 800 USG.4YOU 800 ( ) usg.com pourlevelrock.com usgdesignstudio.com Manufactured for United States Gypsum Company 550 West Adams Street Chicago, IL IG1523/rev USG Corporation and/or its affiliates. All rights reserved. Printed in U.S.A.

5 Lowers the cost, profile and weight of the underlayment sound system Levelrock SRB Sound Reduction Board Systems

6 Only USG offers Levelrock SRB sound reduction board, a unique sound control material used to increase IIC and STC levels in all types of construction. SRB sound reduction board s thin 3/8-in. profile contains recycled content that may assist in obtaining LEED credits. The water-resistant SRB sound reduction board differs from sound mats in that it is constructed of a sound absorbing material with a higher mass. When you pair SRB sound reduction board with Levelrock 2500 in wood framed buildings, you ll exceed the STC and IIC requirements of Section 1207 of the International Building Code (IBC) for most finishes and save money over conventional sound control systems that use sound mats. In addition, SRB sound reduction board systems offer a variety of UL-rated systems for fire safety in multi-family construction. SRB sound reduction board systems are the most economical systems that exceed the STC and IIC requirements of Section 1207 of the International Building Code. SRB sound reduction board lowers the cost, profile and weight of the underlayment system. Because SRB sound reduction board has less deflection than sound mats and Levelrock has a high compressive strength, only 3/4 inch of Levelrock floor underlayment is required to meet or exceed a 50 STC and 50 IIC, as compared to the 1-inch minimum needed for most conventional sound mats used in wood frame construction. This equates to an approximate 25% reduction in floor weight. Transitions SRB sound reduction board systems also provide easier, smoother floor transitions that can save you money on a job. When an area that requires sound control (i.e. vinyl, wood or ceramic flooring) transitions into an area that does not (i.e. carpeting), transition details like the ones below can be used. Note that these should only be considered in projects where the owner plans to use carpet for the life of the building otherwise, a sound control system should be employed throughout the building s living space. Transition 1 can achieve a sound break between rooms with different floor coverings. Adjust the to the same height as the sound control assembly. In this case, the lower profile with SRB sound reduction board reduces the thickness and cost of the in the areas where a sound control system is used. Transition 1 LEVELROCK 2500 carpeted area L angle perimeter isolation strip LEVELROCK 2500 hard surface floor 1 1 /8" 3 /8" tongue and groove subfloor LEVELROCK TM SRB TM sound reduction board In Transition 2, the lower profile of the SRB sound reduction board system Transition 2 allows a gradual transition from 1-1/8 in. down to 3/4 in. over an approximate 3 ft. area. This is an economical solution to consider if you want to reduce the amount of in the building, and still meet the code requirements for both fire and sound. LEVELROCK 2500 gradual slope down to thickness carpeted area nominal 4" to 6" saw cut filled with acoustical sealant LEVELROCK 2500 hard surface floor 3 /8" tongue and groove subfloor high-quality duct tape LEVELROCK TM SRB TM sound reduction board Drawings not to scale.

7 UL-Rated Assemblies SRB Sound Reduction Board Systems require only 3/4 in. of Levelrock floor underlayment to achieve comparable sound performance to sound mat systems for less cost. The SRB sound reduction board systems were tested in open web wood truss joist, engineered I-joist and 29 x 109 wood joist assemblies. UL Des L521 Open Web Wood Truss Joist ASTM Test Results* Sound Rating Finish STC IIC Sheet Vinyl Ceramic Tile Eng. Wood Laminate Note Refer to UL Directory for proper RC-1 spacing based on placement of insulation. Sound test evaluated with open web wood truss joist 12 in. deep spaced 24 in. o.c. UL Des L570 Engineered I-Joist ASTM Test Results* Sound Rating Finish STC IIC Sheet Vinyl Ceramic Tile Eng. Wood Laminate Note Refer to UL Directory for proper RC-1 spacing based on placement of insulation. Sound test evaluated with 9-1/2 in. engineered wood i-joist spaced 24 in. o.c. UL Des L x 109 Wood Joist ASTM Test Results* Sound Rating Finish STC IIC Cushioned Vinyl Eng. Wood Laminate Carpet & Pad Note Refer to UL Directory for proper RC-1 spacing based on placement of insulation. Sound test evaluated with 2x10 wood joist spaced 16 in. o.c. Note *Above systems tested in a laboratory environment per ASTM E90 for Air-borne sound (STC) and ASTM E492 for Structure-borne sound (IIC) per Section 1207 of the IBC. For more information, visit levelrock.com and usgdesignstudio.com. Drawings not to scale.

8 Technical Service 800 USG.4YOU Web Site levelrock.com usgdesignstudio.com Literature Samples Customer Service Product Information See levelrock.com for the most up-to-date product information. Trademarks The following trademarks used herein are owned by United States Gypsum Company or a related company: Firecode, Levelrock, Sheetrock, SRB, USG, USG in stylized letters. LEED is a registered trademark of U.S. Green Building Council. Notice We shall not be liable for incidental or consequential damages, directly or indirectly sustained, nor for any loss caused by application of these goods not in accordance with current printed instruction or for other than the intended use. Our liability is expressly limited to replacement of defective goods. Any claim shall be deemed waived unless made in writing to us within thirty (30) days from date it was or reasonably should have been discovered. Safety First! Follow good safety/industrial hygiene practices during installation. Wear appropriate personal protective equipment. Read MSDS and literature before specification and installation. Manufactured by United States Gypsum Company 550 West Adams Street Chicago, IL IG1526/ , United States Gypsum Company Printed in U.S.A.