HVHZ Wind Ratings

Casement Window Design Pressures

Complete specifications for HVHZ-compliant casement windows. Compare single, double, and French configurations with wind ratings and NOA requirements for Miami-Dade.

3
Configurations
0
PSF Max Rating
NOA
Required
Casement Window Operation
Operable Sash Fixed Panel Crank-out Operation
Operable Sash
Hinge Points
Wind Load

Casement Window Matrix

Side-by-side specifications for HVHZ-compliant casement window configurations.

Specification
Single Casement
Double Casement
French Casement
Max Design Pressure
+/-70 PSF
+/-60 PSF
+/-55 PSF
Max Sash Width
36"
30" each
32" each
Max Height
72"
72"
80"
NOA Options
Opening Area
90%
90%
100%
Cost per SF
$65-95
$75-110
$85-130
Multi-Point Lock
Egress Compliant

Choose Your Casement Style

Single Casement

Highest wind rating

Frame Material Aluminum, Vinyl
Glass Options Impact IG, Low-E
Operation Crank or Lever
Lock Points 3-5 points
Best For
  • High wind zones
  • Small to medium openings
  • Maximum ventilation

Double Casement

Twin sash pair

Frame Material Aluminum, Vinyl
Glass Options Impact IG, Low-E
Operation Dual crank
Center Mullion Fixed divider
Best For
  • Wide openings
  • Symmetrical design
  • Egress compliance

French Casement

No center mullion

Frame Material Aluminum, Wood-clad
Glass Options Impact IG, Decorative
Operation Fold-away cranks
Opening Full width clear
Best For
  • Unobstructed views
  • Premium applications
  • Easy furniture access

Casement Window FAQs

What design pressure do casement windows need in Miami-Dade?

Casement windows in Miami-Dade HVHZ typically require design pressures of +/-50 to +/-70 PSF depending on building height, location, and exposure category. All units must have impact-rated laminated glazing and a valid Miami-Dade NOA.

Are casement windows good for hurricane areas?

Yes, casement windows are excellent for hurricane areas when properly specified. Their compression seal design creates a tighter seal under wind pressure, and the multi-point locking hardware provides superior structural performance compared to sliding windows.

What is the maximum size for impact casement windows?

Maximum sizes vary by manufacturer and design pressure. Single casement windows typically max out at 36" wide x 72" tall for high design pressures. French casement pairs can span up to 64-72" wide total with appropriate ratings.

Do casement windows require special hardware for HVHZ?

Yes, HVHZ-rated casement windows require multi-point locking hardware (typically 3-5 lock points), heavy-duty hinges rated for the design pressure, and often require positive-pressure locking mechanisms that engage automatically when closed.

Quick Selector
Single Casement
Best wind performance
Wind Rating
Ventilation
Cost Value

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