POTTORFF Louver brochure-2026

SEvere DUTY Louvers

WIND-DRIVEN RAIN

Wind-driven rain louvers allow air intake and exhaust while preventing water from entering the building through building openings during severe storms. Commonly used in geographic locations with moderate to severe rain events.

■ AMCA Certified ■ AMCA 540 Listed

HORIZONTAL WIND-DRIVEN RAIN

ECD-245

ECD-445 ECD-545

ECD-635

FLORIDA BUILDING CODE APPROVED 2020

DRAINABLE FEMA LOUVER GRILLE

ECD-745

EFD-437-FL FLORIDA BUILDING CODE APPROVED (2020)

XCD-545 DRAINABLE BLADE FEMA GRILLE

PERFORMANCE DATA ON PAGE 15

BEGINNING POINT OF WATER PENETRATION RATINGS

WIND-DRIVEN RAIN TEST

AMCA CERT.*

540 AMCA –

MODEL

29 50 29 50 29 50 29 50 29 50

3 8 3 8 3 8 3 8 3 8

197 280 397 195 862 975 787 691 581 493

2,123 3,011 4,274 3,088 9,276 10,502

A B A A A B A A A A

99.0 95.0 99.0 99.0 99.4 95.3 99.0 99.4 99.6 99.2

45°

ECD-245

2"

41.3% 6.6

WP/AP/W

1,06

6,649

0.27

45°

ECD-445

4"

42.7% 6.8

WP/AP/W

1,250

8,538

0.32

45°

ECD-545

5"

46.3% 7.4

WP/AP/W

1,250

9,250

0.24

8,473 7,441 6,260 5,312

35°

ECD-635

6"

50.3% 8.0

WP/AP/W

1,250

10,050

0.33

45°

ECD-745

7"

50.6% 8.1

WP/AP/W

1,218

9,866

0.57

1,029

9,105 0.16

WP/AP

EFD-437-FL 4" 37.5° 55.3% 8.9

W

WP

*AMCA CERT LEGEND:

AP Air Performance

Wind-Driven Rain

Water Penetration

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