Page Hero banner

 At Cornerstone Building Brands, we value you as a customer and understand the challenges we’re all facing as we strive to meet the new building and energy-efficiency requirements established in Washington. We’re here to help by offering new window and door solutions and easier ways for you to specify the right products for your builds. 

Page Hero banner

Cascade WinPro

The ONLY 0.22 U-Value dual-pane window series is here!

We’re excited to launch a dual-pane solution through our Cascade WinPro product line. Designed to meet the new WA performance requirements, the new options in the WinPro series means it is the ONLY full product series that achieves a 0.22 U-Value in a dual-pane solution in the market. That means you can continue to install your preferred windows styles, meet the new energy efficiency requirements, and satisfy your customers with a superior-quality product. It also means you won’t have to resort to heavier triple-pane windows, sacrifice the popular grille profiles and patterns available in dual pane products, or forego their easy operation. Dual-pane windows also allow for larger sizes with fewer overall size constraints compared to heavier triple-pane products. It’s a win-win with Cascade WinPro!

Find Applicable U-Value Products

Triple-Pane Solutions

Need to Achieve A U-Value Lower Than 0.22?

We deliver a wide portfolio of windows and doors built for exceptional energy efficiency, achieving a U-Value lower than 0.22. Our popular Ply Gem, Prime and Simonton brands have triple-pane products capable of meeting U-Values below 0.22 including a 0.18 U-Value or lower.

Find Applicable U-Value Products

U-Value Product Availability Charts


Select one of the U-Value groups below to learn about the available U-Value and product style options available.

Disclaimer: This is just a high level guide, variations can occur based on size and other window configurations and customizations. Reach out to your Cornerstone Building Brands representative or specific brands order/quoting system for actual results and details.

Cascade | Ply Gem | Prime | Simonton

More Reasons To Choose Windows & Patio Doors from Cornerstone Building Brands

STYLED FOR MAXIMUM PERFORMANCE

For all of our window brands, we achieve the 0.22 or lower U-Value by incorporating different types of gases and spacers, along with the use of foam fills. Each combination of gases, spacers and foam fill is customized to the style of window for maximum performance.

Hit the “Easy Button”

For fast, easy ordering of the best Cascade window for your project, we’ve added an “Easy Button” to Cascade PowerBids. Select the “0.22 U-Value desired” option in the Desired U-Value field and the right combination of gases, spacers and foam will automatically be selected for you. Ordering the right Cascade window couldn’t be easier.

MADE FOR THE MARKET, IN THE MARKET

Manufactured in WA or regionally close to home, our Ply Gem, Prime, Simonton and Cascade products are strong, efficient, easy-to install windows and doors that many of your peers in the West rely on. Because they’re made right here, you never have to contend with sourcing issues or long delivery times.

FULL PORTFOLIO OF CHOICE

With more than 9 million windows and doors delivered annually, our portfolio of brands offers the industry’s most comprehensive selection of award-winning products—with unique window and door solutions tailored to meet any need.