Types of Soundproofing products
Sound reduction solutions can help to minimise three types of sound: reflected sound, impact sound and airborne sound. These are shown on diagram to the right.
BLUE: Reflected sound – Sound bounces off surfaces to become distorted. It is also known as reverberated sound.
RED: Impact sound – Sound directly transmitted into the floor. This noise can increase if the floor is tiled.
ORANGE: Airborne sound – The noises we hear, direct from the source, or former impact or former reflected sound. This is noise such as music, television, machinery and voices we hear passing through walls and ceilings.
Impact sound reduction (on a tiled floor)
Impact sound is the type of noise Marmox SoundBoard was designed to reduce. The SoundBoard effectively removes the solid link between where the impact happens (i.e. the footfall on the tile) and the ceiling by placing a layer of rubber foam between, so the sound waves do not have a medium to pass through. This delivers a significant improvement in acoustic insulation.
Ceramic tiles on floors can make noises such as footsteps sound even louder in the room below. Many local authorities do not allow tiled bathrooms in shared accommodation for this very reason.
Marmox SoundBoard enables floors to be tiled without the danger of causing noise pollution to the people in the room or flat below. This soundproof insulation product is available in two thicknesses: 8mm and 12mm. While both thicknesses contribute a sound reduction of approximately 20dB, the difference between them is that the 12mm board provides more thermal insulation than the 8mm version.
Marmox SoundBoard is much more than just an impact sound reduction layer - it also provides decoupling so that lateral movement in the floor is absorbed by the board and not by the tiles so the tiles don’t crack. It is completely waterproof and, as well as improving acoustic insulation, helps to lock in heat in rooms where it's fitted.
How to install SoundBoard
The first step is to fix the boards, rubber-side down, to the floor. Use either a thin bed of flexible tile adhesive or Marmox Multibond. Multibond itself is a visco-elastic material so absorbs sound waves, thereby offering slightly more sound reduction and insulation than just using the boards on their own. Marmox Multibond does however take 12 hours to cure sufficiently to tile upon.
Irrespective of which adhesion method is used, a gap of about 4mm should be left between the edge of the boards and the wall, which is then filled with a visco-elastic adhesive such as Multibond to eliminate the possibility of flanking sound happening there.
After you have installed our sound proof insulation and absorption products, tape over the joints and tile as normal.
For more information on our SoundBoard, or any of our sound proof insulation products, get in touch with us through our contact page or speak to one of our helpful team members on 01634 835290.