What Homeowners Need to Know About WDMA Labeling

When shopping for new windows and doors, homeowners often focus on style, price, and material. However, one of the most important—but frequently overlooked—factors is product labeling. Specifically, the WDMA labeling system plays a vital role in verifying performance, safety, and energy efficiency. If you’re investing in WDMA Windows and Doors, understanding what the label means can help you make a smarter, long-term decision.

🏷️ What is the WDMA Label?

The Window & Door Manufacturers Association (WDMA) label is a certification mark that signifies a product has met rigorous standards in quality, performance, and durability. These labels, often placed on the window or door frame, include essential performance metrics that are tested and certified by independent organizations, including the NFRC (National Fenestration Rating Council).

🔍 Key Information on the WDMA Label

1. Manufacturer Details

Identifies the brand and model number.
Useful for warranty, replacement, or matching additional units.

2. NFRC Energy Ratings

U-Factor: Measures insulation (lower is better for colder climates).
Solar Heat Gain Coefficient (SHGC): How much solar heat the window transmits (lower is better for warm regions).
Visible Transmittance (VT): Measures the amount of visible light transmitted.
Air Leakage (AL): Indicates how much air passes through joints.

3. Performance Grade (PG)

Based on structural integrity, water penetration resistance, and air leakage under pressure.
Higher PG = stronger, more durable windows or doors.

4. Impact Resistance and Design Pressure Ratings

Especially important for coastal and storm-prone areas.
Tells you how much wind or force the window can handle.

🧠 Why WDMA Labeling Matters for Homeowners

✅ Assures Quality

A WDMA label confirms the product meets or exceeds recognized standards for performance and safety.

✅ Helps Choose the Right Product

The label helps you compare windows and doors based on climate needs, energy efficiency, and durability.

✅ Supports Code Compliance

Many local building codes now require specific ratings, especially in energy-conscious or storm-prone areas.

✅ Improves Resale Value

Buyers are more confident in homes with certified, energy-efficient windows and doors.

🛠️ Where to Find the WDMA Label

Look for the WDMA label:

On the inside of the window sash or door edge
Attached to product packaging or shipping documents
On the manufacturer’s product detail page or catalog

Always verify the label before installation and keep documentation for your records and warranty.

Final Thoughts

Whether you’re building a new home or upgrading your existing one, knowing what the WDMA label means gives you the confidence to choose high-quality, high-performing windows and doors. By paying attention to these labels, you can ensure your investment is energy-efficient, durable, and perfectly suited to your local climate. Always look for WDMA Windows and Doors for peace of mind and long-term value.