WPL100 Louvres Free Area % (width 0.300 - 0.900)

A heavy duty louvre with a double weather stop. This louvre can be used as a return or exhaust louvre. This louvre has been used extensively throughout New Zealand and is an industry favourite.

Louvre Size v.s. Free Area Percentage

Height	Width (0.300 - 0.900)
Height	0.300	0.400	0.450	0.500	0.600	0.750	0.800	0.900
0.200	14.6	15.3	15.6	15.8	16.0	16.3	16.4	16.5
0.300	21.9	23.0	23.4	23.7	24.1	24.6	24.7	24.9
0.400	25.6	26.9	27.3	27.7	28.2	28.7	28.8	29.0
0.500	27.8	29.2	29.7	30.1	30.6	31.2	31.3	31.5
0.600	30.0	31.5	32.0	32.4	33.0	33.6	33.8	34.0
0.700	32.1	33.8	34.3	34.7	35.4	36.0	36.2	36.4
0.800	33.8	35.4	36.0	36.5	37.1	37.8	38.0	38.3
0.900	35.0	36.8	37.3	37.8	38.5	39.2	39.4	39.7
1.000	36.0	37.8	38.4	38.9	39.6	40.3	40.5	40.8
1.100	36.8	38.7	39.3	39.8	40.5	41.2	41.4	41.7
1.200	36.9	38.7	39.3	39.8	40.6	41.3	41.5	41.8
1.300	36.9	38.7	39.3	39.8	40.5	41.3	41.5	41.8
1.400	36.8	38.7	39.3	39.8	40.5	41.3	41.5	41.8
1.500	36.8	38.7	39.3	39.8	40.5	41.3	41.4	41.7
1.600	36.8	38.7	39.3	39.8	40.5	41.2	41.4	41.7
1.700	37.1	38.9	39.5	40.0	40.8	41.5	41.7	42.0
1.800	37.5	39.4	40.0	40.5	41.3	42.0	42.2	42.5
1.900	37.9	39.8	40.4	40.9	41.7	42.4	42.6	42.9
2.000	38.3	40.2	40.8	41.3	42.1	42.8	43.0	43.4
2.500	38.6	40.6	41.2	41.7	42.5	43.3	43.5	43.8