Impact-Resistant Windows in Greater New Orleans: Ratings Checklist

Impact-resistant window shopping can become confusing because several ratings and labels may appear on the same product. Impact resistance, design pressure, performance grade, water testing and energy performance answer different questions. A useful proposal identifies the exact complete assembly and the documentation that applies to the size and configuration being ordered.

This checklist is for homeowners across Greater New Orleans, including projects in Kenner and Metairie. Kenner and Metairie are separate nearby communities, and project requirements must be confirmed for the actual address and scope.

Impact resistance applies to the tested assembly

FEMA's residential wind-retrofit guidance explains that an impact-resistant product is a tested system that includes the frame and glazing; replacing only the glass is not the same as installing a tested impact-resistant assembly. Review the FEMA Wind Retrofit Guide for Residential Buildings for the source guidance.

Ask for documentation tied to the exact manufacturer, product line, opening size, operating style, glass build and installation method. Do not assume that every configuration sold under one family name carries identical approvals or ratings.

Do not mix up impact, pressure and energy ratings

• Impact documentation addresses resistance to specified debris-impact and cycling test conditions.

• Design pressure or performance grade relates to structural and other tested performance of the unit.

• Water-test information describes a laboratory test condition, not a promise that no water can ever enter a building.

• NFRC ratings compare energy-related properties such as U-factor and solar heat gain coefficient.

• Installation instructions explain how the tested product is attached and integrated into the opening.

The National Fenestration Rating Council explains that its label is for energy-performance comparison. An NFRC label by itself is not proof of impact resistance.

Eight items to request before approving an order

• Exact manufacturer and product-line name

• Exact window style, size and configuration

• Impact-test or approval documentation applicable to that configuration

• Design-pressure or performance-grade information applicable to the opening

• NFRC U-factor and solar heat gain coefficient for the selected glass package

• Manufacturer installation instructions and proposed fastening method

• Written responsibility for removal, opening preparation, flashing, sealing and trim

• Written process for concealed damage or a changed scope

Why the opening and installation still matter

Product documentation does not replace evaluation of the existing opening. Frame condition, wall construction, anchoring substrate, dimensions, surrounding finish and water-management details can affect the project plan. The written estimate should identify what is included and how conditions discovered after removal will be handled.

A strong label cannot compensate for an incorrect size or an installation that does not follow the applicable instructions. Conversely, a well-installed standard window should not be described as impact resistant unless the complete ordered configuration has the supporting documentation.

Avoid absolute storm promises

No window is immune to every storm condition, and no product should be described as unbreakable or guaranteed to prevent every form of damage or water intrusion. Product ratings describe defined test conditions. Building exposure, storm conditions, surrounding construction, installation and maintenance also matter.

For a decision-focused comparison, read Impact Windows vs. Storm Shutters in Louisiana. The right opening-protection strategy depends on the home, existing conditions, applicable requirements and documented products—not a universal sales rule.

Photos and information for an estimate

Send the project city, approximate number of openings, full interior and exterior photos, close-ups of visible damage, and any labels or proposal pages already available. Do not remove permanent labels from products just to photograph them. Final ordering requires field measurement and confirmation of the selected configuration.

Use the estimate photo guide, compare the NFRC label guide, or request a measured estimate.

Frequently asked questions

Is impact-resistant glass alone enough?

Not necessarily. Impact resistance is evaluated for a complete tested assembly. Ask for documentation covering the frame, glazing, size, configuration and installation method being proposed.

Does an NFRC label prove a window is impact resistant?

No. NFRC labels report energy-performance properties. Request separate impact or product-approval documentation for the exact configuration.

Does impact resistance eliminate every storm risk?

No. Impact-resistant products are tested under defined conditions, but those ratings do not justify absolute storm-performance or damage-prevention promises.

Do all sizes in one product line have the same ratings?

Do not assume so. Verify documentation for the actual size, style, glass package and configuration being ordered.

Can Singleton review an existing proposal?

Singleton can discuss the product and installation details shown in a proposal and prepare an estimate for the specific project. Share the relevant pages and opening photos while removing unrelated private information.

For local project context, review window replacement and door installation in New Orleans before comparing product-specific documentation.

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