Not known Factual Statements About London SW1X secondary glazing services
Below the mass-air-mass resonance frequency (about 250 Hz In such a case) the TL of triple glazing is about three dB greater, in line with the mass law prediction for expanding the window’s mass by fifty%. At larger frequencies, the TL curves are Practically similar. The STC ratings for the two windows are precisely the same.Because of All of thi