A flexible noise barrier is used to help soundproof walls, ceilings and floors. Flexible noise barrier is commonly called mass loaded vinyl. Flexible sound barriers come in rolls that are 54” wide and 30’ or 60’ long. The shorter rolls of 30’ can be shipped ups where the 60’ has to be shipped on a freight truck due to weight. The 60’ long roll weighs 270lbs and covers 270 square feet of area when applied to a wall, ceiling or floor. The 30’ long roll covers 135 square feet and weighs 135 pounds and can ship to your door using ups or fed-x. The 1lb version is 1/8” thick and the 2lb version is 1/4” thick.
Flexible noise barriers are easy to install. The material can be stapled or tacked to studs on walls or ceilings then sheetrock applied as normal. For a standard wall the typical Sound Test Class (STC) rating is around STC 41. When the flexible noise barrier is applied to the same wall construction the STC rating is around 50. This is a great improvement with standard construction methods. The same flexible barrier can be applied to floors and then carpet, laminate, tile or wood applied over as normal. All of this type of application uses a non-reinforced version of the barrier.
If you plan on hanging the barrier from a fence or structure as a stand-alone finish or product you would need to use a “reinforced” version of flexible noise barrier. It is the same product with the exception of being reinforced with a fiberglass mesh made into the barrier. It looks and weighs the same as the non-reinforced version with the same acoustical performance. The reinforced version will not stretch even in hot climates such as the dessert heat of Las Vegas. It is equally at home in cold climates as well. The reinforced flexible sound barrier can be hung from fences with grommets attached across the top and bottom on construction sites to reduce noise to surrounding communities. It can then be taken down and used over and over on other projects. It can also be incorporated into a wood privacy fence where the slats cover it up. It will look like a standard privacy wood fence with the exception of having the acoustical performance of a highway sound barrier wall that is affordable to home owners.
Flexible noise barriers can also be used to wrap pipes and ducts to eliminate unwanted noise from traveling from or through the duct and pipes. A scrim fiberglass is applied to the barrier along with an aluminum Mylar facing. This gives the flexible noise barrier the ability to absorb noise, block noise and retain thermal properties of the pipe and duct it is applied onto. This type of barrier is call is commonly referred to as LAG.
The same flexible noise barrier is also used in Acoustical Curtains or Blankets. The flexible barrier is sewn into the curtain with fiberglass on one or both sides with a vinyl blanket face. These curtains are used to make up Acoustical Enclosures or walls. The enclosures are often used in industrial plants to enclose loud machinery to make the working environment better for employees that are in the plant on a daily basis. If machinery is left untreated in plants the people that work in close proximity to the loud equipment can lose their hearing.
Flexible noise barriers have many applications and are very effective in soundproofing and blocking unwanted noise. The best way to determine what type of Flexible noise barrier is correct for your project is to speak with one of our consultants.