Architectural Glass Types for Florida Projects
A Guide for Contractors and Architects in St. Augustine
Choosing the right glass system is critical when designing or building in St. Augustine and other coastal Florida regions. This guide outlines the four primary types of glass used in commercial and residential construction, with links to leading manufacturers, energy performance notes, and compliance considerations for the Florida Building Code (FBC).
🛡️ Impact-Resistant Glass (Monolithic)
Description:
Impact glass features two glass layers bonded with a PVB or SGP interlayer. It remains intact when shattered, making it essential for wind-borne debris regions.
Applications:
- Storefronts
- Exterior doors and windows
- Commercial and residential projects in WBDR zones
Key Manufacturers:
Code Notes:
- Meets ASTM E1886 / E1996 impact standards
- Required for unprotected exterior glazing in most of St. Augustine
🧊 Impact-Resistant Insulated Glass
Description:
This system combines impact glass with an insulated air or gas-filled cavity for added thermal performance. Ideal for projects demanding energy efficiency and storm protection.
Applications:
- High-end residential
- LEED-certified or energy-conscious developments
- Mixed-use coastal properties
Recommended Low-E Options:
Energy Benefits:
- Superior U-values and SHGC
- Qualifies for many insurance and energy code incentives
🌡️ Insulated Glass (Non-Impact)
Description:
Two panes of glass separated by a sealed spacer filled with air or gas. Offers energy savings but lacks storm impact protection.
Applications:
- Interior/exterior use in non-coastal or shutter-protected zones
- Window retrofits where code allows
Manufacturers:
Note: Not FBC-compliant for exterior use in WBDR zones unless paired with shutters or barriers.
⚠️ Non-Impact Monolithic Glass
Description:
Single-pane glass that may be annealed or tempered. Often used for interior or non-load bearing applications.
Applications:
- Interior glazing, doors, transoms
- Historical building glass replacements
- Shuttered systems (with proper engineering)
Limitations:
- Not permitted for unprotected exteriors in most Florida zones
- No energy or debris protection without enhancements
🎨 Common Tint & Color Options
| Glass Tint | Primary Use | Design Notes |
|---|---|---|
| Clear | Maximum light, neutral look | Most common baseline |
| Gray | Glare and heat reduction | Popular in commercial storefronts |
| Bronze | UV protection with warm tone | Traditional and Mediterranean designs |
| Green/Blue | Coastal look and solar control | Often used in high-end projects |