DETAILS, FICTION AND ENERGY EFFICIENCY

Day-night common level, DNL or LDN: This measurement assesses the cumulative exposure to sound for your 24-hour period of time (Leq in excess of 24 hrs) in the calendar year, having a 10 dB(A) penalty or pounds added to nighttime noise measurements given the improved sensitivity to noise in the evening.From this, we can see that a double glazed wi