Hurricane Impact Interlayers - PVB or SGP?

Hurricane Impact Interlayers - PVB or SGP? Did you know going from 120" tall to 122" may increase your cost by as much as 20%? PVB interlayers are less rigid and often limited to 40-50 SF but are significantly less expensive. Depending on the pressure chart on the hurricane product approvals PVB interlayer makeup will have maximum size cutoffs.

Going big can have major cost implications on your project as there are often significant adders as you go over 50 square feet. Glass breakage rates are higher on bigger glass as well so most manufacturers add 20-40% premiums.

9/16" laminated impact glass weighs about 10 Lbs / SF so at 50 SF you are 500 pounds and 60 SF is 600 pounds. Handling these massive panels also adds more cost to labor and equipment handling.

Luxury impact windows and doors may cost around $100/SF and some super large impact glass can cost over $1,000 / SF, the type and size is critical to the architectural design.

I help architects, builders, and owners select, specify, and detail luxury residential hurricane glazing systems without manufacturer or dealer biases.

From just one hour to as many hours as you need a glazing expert for your project.

I also give classes in all aspects of hurricane windows and doors on glass aesthetics and energy performance, manufacturer product overviews, detailed installation planning and best practices, and understanding hurricane product approvals.