Structural Performance You Can Depend On

West-Prime Thermal Aluminum Windows are ideally suited for commercial or large residential applications. The West-Prime Thermal Window was designed to handle the demanding requirements of commercial quality windows while maintaining a pleasing, easy-to operate, residential look and feel.

West-Prime Features:

• Independently Tested and Certified C-45

• 7/8" Insulated Glass for improved thermal efficiency.

• Both double-hung sashes tilt in for easy cleaning.

• Heavy-duty extruded aluminum frame and sash rails for strength and long service life.

• Four rows of weatherstripping at the interlock and fin-seal weatherstripping around the sash rails provide the best possible seal against air infiltration—two rubber bulb compression seals on the bottom sash close the frame sill tightly.

• Easy-to-operate cam-action sash locks, with two locks standard on windows over 24" in width.

• Electrostatically applied enamel finishes are durable and long lasting.

• Large, extruded aluminum lift rail is curved for a comfortable and secure grip when raising and lowering the bottom sash.

• Concealed, quiet spiral balance system makes raising and lowering both sashes easy. The balance system is fully adjustable, should adjustments ever be required.

• Optional full or half height screen is made of the same heavy extruded aluminum used in the sash a frame, with aluminum screening standard. Fiberglass screening is optional.​

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West-Prime windows are available in white, tan and bronze finishes to complement any style of architecture.