For commercial projects, glass selection is about more than aesthetics. Contractors across Texas, Oklahoma, Louisiana, and the Gulf must balance performance, safety, and energy efficiency. Two of the most common options are insulated glass units (IGUs) and laminated glass. While both have advantages, understanding their differences helps contractors and building owners make the right choice for each project.
What Is Insulated Glass?
Insulated glass is designed to improve energy efficiency. An IGU typically consists of two or more panes of glass separated by a spacer and sealed around the edges. The space between panes is often filled with air or gas, such as argon, to reduce heat transfer. For contractors, the biggest advantage of insulated glass is its ability to keep indoor temperatures stable, reducing heating and cooling costs. In hot climates like Texas or New Mexico, IGUs with Low-E coatings can make a significant difference in energy bills.
What Is Laminated Glass?
Laminated glass is built for safety and strength. It’s made by bonding two panes of glass with a plastic interlayer, usually polyvinyl butyral (PVB). If the glass breaks, the interlayer holds the pieces together, preventing dangerous shards from scattering. Contractors often use laminated glass in storefronts, doors, and areas where impact resistance is critical. In hurricane-prone regions like Louisiana and the Gulf, laminated glass is often required to meet code for wind and debris protection.
Energy Efficiency Comparison
Insulated glass is the clear winner when it comes to energy performance. By reducing heat transfer, IGUs help maintain interior comfort and lower utility costs. Laminated glass, while strong, does not insulate as effectively on its own. However, laminated IGUs exist, combining both technologies. These hybrid units provide the safety of laminated glass with the thermal performance of insulated glass, making them ideal for high-performance projects.
Safety and Security Comparison
Laminated glass outperforms insulated glass in safety. Its shatter-resistant design makes it harder to penetrate, protecting against break-ins and storm damage. For schools, hospitals, and retail stores, laminated glass adds an extra layer of security. Insulated glass, while durable, can still break into sharp pieces if shattered. That’s why it’s more common in windows and curtain walls where energy efficiency takes priority over impact resistance.
Noise Reduction Benefits
Noise control is another factor contractors often consider. Laminated glass has excellent sound-dampening qualities thanks to its interlayer. This makes it ideal for projects in busy urban areas or near highways. Insulated glass also reduces sound transmission, but laminated options generally provide better acoustic performance in demanding environments.
Cost Considerations
Insulated glass is typically less expensive than laminated glass, though costs vary based on size, coatings, and custom features. Laminated glass costs more due to its manufacturing process and safety performance. Contractors should weigh upfront costs against long-term benefits. For projects requiring both efficiency and safety, hybrid laminated IGUs may offer the best value over time.
Best Applications for Each
- Insulated Glass (IGUs): Ideal for offices, hotels, schools, and large windows where energy efficiency is a priority.
- Laminated Glass: Best for storefronts, entry doors, banks, schools, and coastal projects requiring storm resistance.
- Hybrid Laminated IGUs: Perfect for high-performance commercial projects that need both safety and efficiency.
Conclusion
Insulated and laminated glass each bring unique strengths to commercial construction. IGUs improve energy performance, while laminated glass delivers safety and impact resistance. For many projects, the right choice depends on climate, code requirements, and budget.
Sky Building Materials supplies both insulated and laminated glass to contractors across Texas, Oklahoma, Louisiana, and the surrounding region. To learn more about which option is best for your project, visit our contact page or connect with us on Facebook.