Easy Screed combined with each of these materials offer sound-proofing solutions to exceed the current building regulations.
Enkasonic is a sound control matting used in floor construction and renovation. It is a composite of nylon filaments that forms a three-dimensional mat 10mm thick. A non-woven fabric is heat-bonded to the upper surface. The product was designed initially for use under ceramic tiles, however, tests carried out in the US over a decade have demonstrated it’s effectiveness under other constructions and floor coverings.
The installation process requires that an expansion strip (polystyrene or similar) is installed around the perimeter of each wall. This helps minimise flanking sounds. The Enkasonic is then laid and cut flush to the perimeter strip. It is not fixed down, as fixing of the materials all cause noise transfer. Once installed a layer of 500 gauge polythene is laid over the Enkasonic. It is sealed and taped at all joints and turned up the walls approximately 150mm. This can be cut back at a later stage. If underfloor heating pipes are being installed, they should be cable-tied to mesh (A142 or similar), rather than mechanically fixed down. This again minimises the noise transfer. Easy Screed is then poured across the floor.
Ethafoam is a resilient layer installed to isolate the screed from timber floors and structural concrete slabs. It is used to reduce the impact sound by limiting the amount of vibrations transmitted from the wearing course.
There is little preparation required to install Ethafoam. It is simply rolled out over the sub-floor and taped at the joints. It can also be turned up at the perimeter walls to finish above the screed, which helps reduces flanking transmissions.
Because Ethafoam has a plastic-type coating on it, Easy Screed can be installed directly over the Ethafoam, without the need for a layer of polythene to be installed. To achieve the best acoustic performance from the floor, all underfloor heating pipes should be cable-tied to mesh to minimise the number of nails/clips being inserted into the floor. All such inserts increase the amount of noise transferred through the floor.