The PDF’s below are a guide to the acoustic performance of Wintec's aluminium windows & doors. The Rw (Weighted Sound Reduction Index) ratings are results of tests conducted at the National Acoustic Laboratory.
All tests conducted at the National Acoustic Laboratory in accordance with Australian Standard AS1191.
Air leakage tests conducted in accordance with Australian Standard AS4420.4 in NATA accredited laboratory number 14093.
As a guide see our acoustic charts
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