Produced in continous machinery thusĬomes in rolls of 32x4 Ft (128 sqft) / 1.2x10 Mtr (12 sqm) with a straightness ≤ 20 mm/10 m. SoundBlanket® Installs on any hard surface with nails and adhesives. SoundBlanket® in combination of a sound absorber like Sound Insulation Pad provides full Used as a primary layer for sound isolation in hotels, nightclubs, cineplexĪnd buildings. SoundBlanket® MLV is easy to install on floors, walls and ceilingsīecause of its flexible nature. That’s exactly what we do in the next section.SoundBlanket® MLV : Mass Loaded Vinyl is a super high density vinyl membrane produced to isolate andīlock low, medium and high frequencies. You need to combine it with other soundproofing principles. Layers of drywall is a good example of why you can’t rely only on the soundproofing principle of mass (Berger’s law). Plus, you don’t want to end up with a wall that’s 10 times thicker! To reach an STC 50, how many layers of drywall would you need? While drywall is a more accessible solution, it’s objectively not the best option for noise reduction in a room.Īs you can see, stacking more layers of drywall quickly reaches its beneficial limit.The gain is reasonably interesting when we stack an additional layer (STC +3) but another layer provides less gains (STC +2). The STC of 50 bar is what’s considered good for noise insulation, for instance you wouldn’t hear a loud speed in the adjacent room.ĭividing the cost by the STC gain gives us a figure of $45-90 per STC gained, meaning MLV is a more cost-effective solution. It’s a huge improvement as an STC of 50 is the target in building codes. This would result in a jump from an STC of 42 to 49. A sheet of MLV on either side of the wall,.You can boost the results of MLV by adding more materials. An STC of 45 means some loud speech is barely audible (for example, muffled through a wall).īut when we increase to 50, which is the recommended value as per the International Building Code, loud speech isn’t audible at all. Look at the table below for a better idea of what STC improvements look like. ![]() It’s a logarithmic scale, much the same as decibels.Īs such, we can’t really quantify noise reduction in a value of percentage reduction, as much of it comes down to how the individual perceives noise. As such, the final results come from simply adding MLV.Īs you can see, calculating STC ratings isn’t as simple as adding the figures together. It uses standard drywall and stud assemblies and no cavity insulation. The wall assembly used here is one of the most basic you’ll find in a building. This is why it’s vital for you to get a decent seal around it.įor more specific information on how to get the most from this product, check out my article on how to install mass loaded vinyl on walls and ceilings. MLV helps against both structure-borne (impact) noise and airborne noise. ![]() This is the most effective way of creating an airtight seal because sound energy can fit through even tiny gaps. Use acoustic caulk to seal any gaps around the edges of the MLV. ![]() ![]() You can have an airtight setup that’s got enough slack – just don’t cover more or less than the surface of the wall.
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