Structural Glazing

Corner Window Engineering

Specialized engineering for HVHZ corner window assemblies. Multi-directional wind loads require careful analysis of corner joints and structural connections.

3
Corner Types
0
Degree Corners
PE
Required
Corner Window Plan View
Panel A Panel B Corner Joint Wind 90
Glass
Stress Zone
Corner

Configuration Matrix

Side-by-side specifications for HVHZ corner window configurations.

Specification
Butt-Glazed
Post Corner
Structural
Design Pressure
+/-55 PSF
+/-75 PSF
+/-85 PSF
Max Span per Leg
6 ft
10 ft
15+ ft
Visual Clarity
Maximum
Post Visible
Frame Visible
NOA Available
Engineering Required
Cost per LF
$450-650
$350-500
$550-800

Choose Your Corner Configuration

Butt-Glazed Corner

Frameless appearance

Joint TypeSilicone only
Glass Thickness1"+ laminated IG
Corner Angle90 degrees typical
Sealant Width1/2" - 3/4"
Best For
  • Luxury residences
  • Unobstructed views
  • Modern architecture

Post Corner

Structural support

Post Size4" - 6" typical
MaterialAluminum/Steel
Glass TypeImpact IG
Angle Range45 - 135 degrees
Best For
  • Commercial buildings
  • Higher wind zones
  • Larger openings

Structural Corner

Maximum performance

Frame TypeSteel reinforced
Glass OptionsMulti-ply laminated
ConnectionEngineered anchors
Load TransferFull moment
Best For
  • High-rise buildings
  • Extreme wind zones
  • Large curtain walls

Corner Window FAQs

Why are corner windows challenging in HVHZ?

Corner windows experience wind loads from multiple directions simultaneously, creating complex stress patterns at the corner joint. Both positive and negative pressures can act on adjacent glass panels, requiring specialized engineering for the connection.

What is the maximum span for butt-glazed corners?

Butt-glazed corners without structural support are typically limited to 4-6 feet per leg in HVHZ applications. Glass thickness of 1 inch or more laminated IG units is required, with structural silicone joints engineered for the design pressure.

Do corner windows require special NOA approval?

Yes, corner configurations often require product-specific NOA approvals that address the unique corner joint. Some manufacturers include corner details in their standard approvals, while others require engineering judgments or product approvals.

How do you waterproof corner window joints?

Corner joints require multi-stage waterproofing including structural silicone at the glass-to-glass joint, secondary sill pans with corner boots, and proper head flashing integration. All components must be compatible and tested for the design pressure.

Quick Selector
Post Corner
Best balance of performance
Wind Rating
Aesthetics
Cost Value

Get Your Corner Window Analysis

PE-stamped engineering for complex corner glazing assemblies in Miami-Dade HVHZ.

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