Accoustic performance

Minas k sifakisNoise insulation:

On site measurements demonstrated a performance of DnTw = 43dB for a door and frame installed in a standard, 30mm thick, double perforated brick cavity wall (Rw 51dB).

An apparent weighted sound reduction index of R’w=35dB can be thus estimated for the door and frame.

 

The relevant literature, regulations and standards (e.g. article 12 of the Greek building regulations, DIN4109 etc) indicate that the corresponding laboratory values should be 5dB higher, thus pointing to a weighted sound reduction index of: Rw40dB.

Higher noise insulation values can also be achieved, if required, with special threshold floor seals.

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