Wilrep Ltd.

Mass Loaded Vinyl or MVL is a sound barrier blocking material known as a “Limp Mass Barrier.” The material is comprised of two principle ingredients: vinyl — to give the MLV flexibility, “the limpness” and, a naturally occurring, high mass element. Often Barium Sulfate is used due to its unique properties – it is non-toxic and has a high relative density. This latter attribute of high density is what makes Mass Loaded Vinyl so effective in blocking sound. What’s the difference between Mass Loaded Vinyl and acoustic sound batts? We first need to understand what makes a good absorber or barrier. In general there are only two characteristics that make an effective sound absorber or sound barrier – “fuzzy stuff” (mineral fibre or fiberglass) or mass. Most if not all absorbers and barriers have one or both of these characteristics in their design. How these materials are employed in the design of the absorber barrier or, how and where the absorber barriers are placed in an environment is the wizardry of acoustic design. Absorbing sound relies heavily on the knowledge and manipulation of a sounds wavelength. For example, mid to high-frequency sound — say above 500 Hz — have wavelengths greater than 68 cm in length (˜ 27 inches). To absorb this wavelength with fuzzy stuff would require a minimum depth of absorber of one-quarter of the waves length. In this example, 17 cm (˜ 6 inches) of depth would be needed to attenuate frequencies at and above 500 Hz. Fuzzy stuff absorbers function by virtue of the fuzzy materials porosity (the percentage of pores or crevices, to the total volume of the mass). These crevices capture the relatively short wavelengths of mid to high-frequency sound and convert the sounds energy to heat via friction. Blocking sound on the other hand, requires that the material to be used be the opposite in composition to an absorber. The material needs to be dense. Density is derived from mass. Highly dense or massive materials typically do not have a porous structure to allow the sound wave to enter (and pass through) them. Consequently, any material that has a high mass could be used to block a sounds path. Concrete, gypsum board, MDF, hardboard and concrete masonry units are all popular examples of high mass barriers. The problem with these common building materials is that they are very stiff. They have great mass but they don’t get the overall sound reductions you would expect from them because they are not limp and flexible like the mass loaded vinyl (MLV) Noise Blok Pro. Again it is the application of the mass (the what, where and how the mass is used) that will make an effective sound barrier. So why is Mass Loaded Vinyl so celebrated as a sound barrier? Because MLV has a very small cross-section, it’s flexible AND it’s massive! None of the earlier examples of high mass barriers can be wrapped around or molded to the shape of something — MLV can. This unique combination of small dimension, mass and flexibility makes Mass Loaded Vinyl a one-of-a-kind material in the world of sound barriers. For example, if you need to sound isolate a horizontal run of a grey-water pipe in a homes basement; the typical method in the past would have been to place a little more fuzzy stuff in the joist cavity where the pipe is (say 3-inch Roxul Safe n’ Sound insulation). Then put up the normal 12-inch gypsum board ceiling. If we examine the weight per square foot of this single-layer construction, we would find that there is a total of 25.6 oz. sq. ft. for the 12 inch gypsum board plus approximately 10 oz. sq. ft. for the 3-inch Roxul. A total of approximately 2.2 lbs. sq. ft. Installing more layers of gypsum via means of Damping Compound or isolation clips is unfortunately not always doable due to the floor to ceiling height in many basements. Therefore, we find that this is the typical total isolation for the grey-water pipe noise. Soundproofing walls and soundproofing ceilings in these restricted environments is often far easier with Mass Loaded Vinyl. What if we could double the total mass of a given construction project and use only a few millimeters of additional space? This is where Mass Loaded Vinyl is irreplaceable. Going back to the earlier example of the grey-water pipe. Before closing the ceiling, if we wrap the grey-water pipe in .14 mm (˜ 964-inch) Mass Loaded Vinyl at 2 lbs. sq. ft., we have effectively doubled the mass per running foot of the ceiling around and below the pipe. Double the mass = approximately double the isolation. (Remember, how a material is attached will contribute to its success). Try wrapping a pipe in concrete or hardboard or MDF! Soundproofing Pipes with Mass Loaded Vinyl Even if it where doable — think of the time in labour that would be required? Compared to cutting lengths of Mass Loaded Vinyl into strips and then cable tying the strips around the pipe. It’s a bit of a no-brainer…! Installing Mass Loaded Vinyl in walls, ceilings and beneath floors is a space saver and is stunningly effective regarding mass per cross-section dimension. Where to use Mass Loaded Vinyl? Soundproofing walls Soundproofing ceilings Soundproofing floors Soundproofing pipes Soundproofing HVAC ducts Soundproofing office partition walls Soundproofing computer server rooms Soundproofing mechanical rooms Why is AcoustiGuard’s Noise-Blok Pro my best choice? We stock various roll widths. – The most common being 121 cm (48 inch) wide, because it makes sense and cents when working with construction projects with 40 cm (16 inch) or 60 cm (24 inch) on-center framing. There is no waste. We stock various additional face-treatments applied to one side of the Noise Block. Foil faced for Class 1 Fire Rated Sound Barriers Scrim faced for high strength sound barriers to hang in extended lengths. Foam faced for sound barrier and acoustic absorption. and Because Noise Block is flexible AND strong. Many other Mass Loaded Vinyl’s on the market tear easily when hanging, making those products difficult to install and economically wasteful. Many other suppliers sell underweight barrier so it will not have the sound blocking abilities and characteristics you want and are paying for. Noise Block Pro actually has Roll Weight stickers on every single roll, showing that our material is absolutely no less than the specified (and expected) 1 pound per square foot. See the scan of a Roll Weight sticker below.

Multi-Family Homes Semi-Detached Homes Vocal BoothsRooms Studios Home Theatre The Resilmount A237R™ is a vibration absorbing and sound Isolation Clips that is an affordable & reliable sound solution that can be used on wood and steel wall stud as well as ceiling joist applications. The Resilmount patented thermoplastic rubber outperforms standard rubber because of its unique natural absorbing characteristics. The Resilmount A237R™ exclusive sound cell design safeguards against structure borne vibrations transferring into the body of the Resilmount because of its strong column design providing a small percentage of contact surface area with the structure or substrate it is fastened to. This aids in absorbing and breaking up airborne sound at the transfer point. • Engineered thermoplastic rubber outperforms standard rubber because of its sound absorbing characteristics. • Can be used with any wood, steel, CMU or concrete application. • Decouples gypsum board from the structure. • Is UL approved in 84 wall and ceiling assemblies. • Has consistent and reliable quality – manufactured under ISO 9001 quality control system. • Is a cost effective way to isolate airborne noise. • Can be used to suit 78” and 1 12” furring channels. • Provided with a 14” hole for a variety of fasteners

Acoustic ‘flanking’ can seriously degrade the acoustic performance of a wall assembly. Iso-Sill™ ™ is used to help prevent structure borne noise from transmitting through the wall into the areas above and below the partition. Iso-Sill™ ™ is a permanently resilient gasket that decouples wall assemblies from the building structure to reduce the transfer of sound and vibration. Iso-Sill™ ™ Plate Isolation is manufactured with reclaimed rubber and is formulated with high damping acrylic polymers making it a “Green” product for LEED projects. The Iso-Sill™ ™ Isolation Plate is manufactured to carefully controlled density standards for trusted long term service. Iso-Sill™ ™ Isolation Plate can be installed with mechanical fasteners, polyurethane based construction adhesives, or a variety of thin-sets and mortars. Iso-Sill™ is impervious to water, most chemicals and temperature change. Iso-Sill™ ® will not rot or support mold. Iso-Washers for installation are also available through AcoustiGuard® – WILREP LTD. Benefits: Factory slit to width and easily field cut to length with utility knife. Unlike fiberglass it is not affected by moisture. Used for both top and bottom plates. Can be used for a wide range of loadings (1-50 psi). Continuous resilient support of partition. Unaffected by water. Will not support mildew or mold growth. Can use mechanical fasteners or adhesives (PSA available) Product Specification: Iso-Sill™ is available in thicknesses of either 5mm or 10mm and available in a wide varies of required widths. Standard sizes are 1-14″, 3-14″ 5-14" and 8″ + custom widths available to order. The Iso-Washer comes standard at 1-14" in diameter and 12″ thick. Iso-Sill™ Plate Isolation offers an easy and in-expensive solution for resiliently decoupling sound related assemblies from other parts of the structure. It effectively breaks the connection between related and non-related assemblies resiliently isolating sound and vibration.

Green Glue Noiseproofing Compound and Sealant has been fire tested for use in several varying wall assemblies. If you would like information on these assemblies, navigate to www.ul.com Scroll down under "Resources" and click on the "Online Certifications Directory", or just click here http:database.ul.comcgi-binXYVtemplateLISEXT1FRAMEindex.html , fill in blank field "UL File Number" with R26312 and click on the search button. Use Green Glue Noiseproofing Sealant along edges and cracks. A water based sealant used to seal edges and seams of the drywall and sub floor to maintain the specific Sound Transmission Class (STC) value of the system designed. Noiseproofing can be easily mudded and painted over. It cleans up with simple soap and water. Noiseproofing remains permanently flexible and will not crack. Noiseproofing adheres to most surfaces including wood, concrete, metal, glass, plastic and gypsum.Making Green Glue Noiseproofing Sealant a part of your soundproofing projects assists with the reduction of noise transmissions.Noiseproofing is easy to apply, no training is necessary. Applied in the same fashion as standard caulking material. The best soundproofing strategy will fail if there are cracks and other gaps in a wall, floor or ceiling that are left uncovered. Green Glue Noiseproofing Sealant seals the cracks and gaps to prevent unwanted noise from escaping a room. It is non-hazardous, has practically no odor, and it resists drying out or cracking with age. The sealant comes in 28-ounce tubes that fit into quart-sized calking guns. Cleans up is with simple just soap and water, even when wet. It dries completely in 48 hours.Once dry it can be painted or mudded over. Water based – Easy to Apply – Low odor – Non-toxic - No VOC formulation Freeze – Thaw stable

When selecting hangers, it is recommended that the calculated mass of the ceiling system is increased by 10-20% to avoid overloading of the isolation element. If maximum rated deflections are required, the ceiling system needs to be accurately weighed and point loads assessed in accordance with the architectural specifications of the project. The site contractor can undertake normal installation procedures of the suspended ceiling system. Once the hanging wire has been hung from the substrate, the lower end of the wire needs to be bent up in accordance with the ceiling system manufacturers specifications, providing a ‘hook’ on which the Resilmount™ Type A50R-1 can be hung. Once the mount is in place, another section of hanging wire is required to be bent and inserted through the lower side of the Resilmount™ Type A50R-1. The shaft of this wire then becomes the mounting point for the ceiling suspension clip. FEATURES AND BENEFITS • Easily installs with all types of hanger wire. • Can be used in new or existing ceiling systems. • Acoustically tested for STC and IIC. • Does not reduce the load capacity of the ceiling system. • The hanger isolates the ceiling system from the structure to reduce structure and airborne noise. • Load capacity: 65 Lbs.

The Resilmount is an acoustic sound isolation bracket used in a variety of wall and ceiling applications. Features & Benefits: • Significantly improve low and high frequency sound control performance. • Substantially reduce impact noise in floor-ceiling assemblies. • Adaptable to a variety of sound control applications. • Can be installed from the ground using extended gas-powered tools for wire-suspended ceilings. The Resilmount is used in a variety of applications where structural support is required, including wall sway bracing, ceiling suspension, and accessory mounting. Product Specification Product Name: Resilmount A48R Description: A rubber and steel right angelbracket Application: Resilimount bracket is used in a variety of applications where structural support is required, including wall sway bracing, ceiling suspension, and accessory mounting. Dimension: Bracket 1-916" Width, 4" height BracketsBox: 100 Lead time: Call to check stock availability