POTTORFF Louver brochure-2026

SEvere DUTY Louvers WIND-DRIVEN RAIN

One of the benefits of wind-driven rain louvers is that they are sight proof. The tight blade spacing and steep blade angles of these louvers force water to collect on the blade surface where it is channeled into vertical downspouts.

■ Thinline, Vertical and Dual-Module Models Available ■ Florida Building Code Approved ■ AMCA 540/550 Listed

VERTICAL WIND-DRIVEN RAIN

ECV-245

ECV-345

ECV-445

ECV-545

ECV-645

DUAL-MODULE

PERFORATED FACE PLATE

EDV-545 J BLADE WITH VERTICAL BLADE REAR SECTION

EFJ-937 J BLADE WITH VERTICAL BLADE REAR SECTION

EPV-545 VERTICAL BLADE WITH 3/8" OR 1" PERFORATED FACE PLATE

BEGINNING POINT OF WATER PENETRATION RATINGS

WIND-DRIVEN RAIN TEST

540550 AMCA

AMCA CERT.*

MODEL

99.6 99.3 100 100 99.5 99.4 100 99.7 – 100 100 99.8 100 99.0 99.0 99.6

6,371 4,300

29 50 29 50 29 50 29 50 – 50 29 50 29 50 50

3 8 3 8 3 8 3 8 – 8 3 8 3 8 8

592 399 986 984 682 404 985 985 – 943 984 985 988 892

A A A A A A A A – A A A A A A A

45°

ECV-245

2"

41.5% 6.6

1,50

8,299

0.42

WP/AP

10,616 10,594

45°

ECV-345

3"

46.9% 7.5

1,250

9,375

0.19

WP/AP/W

7,343 4,350

45°

ECV-445

4"

42.9% 6.9

1,250

8,575

0.30

AP/W

10,601 10,605 – 10,154 10,591 10,600 10,640 9,599

45°

ECV-545

5"

54.8% 8.8

1,250

10,963

0.28

WP/AP/W

45°

ECV-645

6"

52.6% 8.4

1,250

10,525

0.47

WP/AP/W

45°

EDV-545

5"

50.2% 8.0

1,250

10,038

0.55

WP/AP/W

37°

EFJ-937

9"

53.9% 8.6

1,250

10,775

0.48

WP/AP/W

EPV-545 3/8" PERF EPV-545 1" PERF

– –

– –

– –

5"

45° 45°

46.2% 7.4 52.5% 8.5

10,585 982 983 10,585

1,087 8,044 0.29 690 5,795 0.15

5"

50

8

AP Air Performance

W

WP

*AMCA CERT LEGEND:

Wind-Driven Rain

Water Penetration

8

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