Tempered vs. Laminated Glass: Which Is Right for Your Portland Property?
Both are safety glass — but they work differently. Here's what a licensed Portland glazier recommends for storefronts, windows, shower doors, and commercial applications.
Tempered vs. Laminated Glass Comparison
Side-by-side comparison for Portland homeowners and business owners
| Feature | Tempered Glass | Laminated Glass |
|---|---|---|
| Strength | 4–5x stronger than regular glass | Similar strength, but holds together when broken |
| When broken | Shatters into small, rounded pieces | Cracks but stays in place (held by interlayer) |
| Security | Good — breaks quickly on impact | Better — harder to break through |
| Sound reduction | Minimal | Good — interlayer reduces noise |
| UV protection | Minimal | Good — interlayer blocks UV rays |
| Code compliance | Meets safety glazing requirements | Meets safety glazing requirements |
| Cost | Lower cost | 20–40% more expensive |
| Best for | Standard storefronts, windows, shower doors | High-security, hurricane zones, skylights |
When to Use Each Glass Type
Choose Tempered Glass For:
- Standard storefronts and retail windows
- Shower doors and enclosures
- Glass railings and handrails
- Interior glass partitions
- Residential windows (near doors/floor)
- Most commercial applications
Choose Laminated Glass For:
- High-security storefronts in crime-prone areas
- Skylights and overhead glass
- Sound reduction applications
- UV protection (museums, galleries)
- Hurricane or impact-resistant applications
- Banks, jewelry stores, dispensaries
Frequently Asked Questions
What is the difference between tempered and laminated glass?
Tempered glass is heat-treated to be 4–5x stronger than regular glass and shatters into small, rounded pieces when broken. Laminated glass has a plastic interlayer (PVB) between two glass panes — when broken, the glass sticks to the interlayer and holds together rather than shattering. Both are safety glass, but they behave differently when broken.
Which is better for storefronts — tempered or laminated glass?
Tempered glass is required by code for most storefronts and is the standard choice. Laminated glass is better for high-security applications because it holds together when broken, making it harder to break through. Many Portland businesses in higher-crime areas choose laminated glass for added break-in resistance.
Which glass type is required by Portland building code?
Portland building codes (following Oregon Structural Specialty Code) require tempered safety glass for storefronts, doors, sidelights, and windows near floor level. Laminated glass also meets safety glazing requirements and can be used in most applications where tempered glass is required.
Do you install both tempered and laminated glass in Portland?
Yes, Clear Works installs both tempered and laminated glass for residential and commercial applications throughout Portland and the surrounding metro area. We help you choose the right glass type for your specific needs, budget, and security requirements.
How much does tempered vs. laminated glass cost?
Tempered glass is generally less expensive than laminated glass. For a standard storefront panel, tempered glass typically costs $400–$800 installed, while laminated glass runs $600–$1,200 for the same size. The price difference reflects the additional manufacturing process for laminated glass.
Not Sure Which Glass Is Right for You?
Call us and we'll recommend the best glass for your specific application and budget. Free estimates throughout Portland.