RATINGS AND PERFORMANCE DATA

USA/CAD - NFRC, U-Factor, SHGC/VT, Energy Star
^{*Note: LiftSlide products are tested and certified (data is available), but they will not come with NFRC Labeling.}
DP Ratings
DP Ratings - Impact Glazing
Manufacturer's Certification Certificate
Egress Calculation

GOOD DESIGN MAKES NECESSITIES INTO VIRTUES

This design fundamental is never more true than in the demanding world of windows and doors.
At Loewen, we strive to provide our customers with the world's most inspiring windows and doors – but as we inspire, we must also build reliability into everything we make. As with all good design, form follows function. That's why we focus our attention and craftsmanship not only on aesthetics, but on performance. Thermal performance, strength and stubborn resistance to air and water infiltration are at the core of every Loewen product.

THIRD PARTY MEASUREMENT AND CERTIFICATION

To enable homeowners, designers, architects and builders to choose the right products, Loewen adheres to universally recognized accreditation and certification programs. Certification allows our performance to be precisely measured and compared to other products and empowers you with objective, scientific tools.

Loewen products are designed to meet most major building codes. Our extensive product line, custom capability and years of market experience make even the most stringent codes achievable. Rely on Loewen to avoid unexpected expense and create your custom applications to code and to specification.

CERTIFICATIONS

		National Fenestration Rating Council (NFRC) Our products are empirically shown to be among the industry's best in terms of thermal performance.
		Window and Door Manufacturers Association (WDMA) Awning, Casement, Double Hung and Picture Windows, Patio and Terrace Doors are Hallmark Certified. Hallmark Certification is indicative of high performance fenestration products.
		Energy Star Window Partner Loewen is Energy Star certified for use in all U.S. climate zones. Learn more about Energy Star at http://www.energystar.gov To view Energy Star Product Performance Ratings, please click here
		Efficient Window Collaborative Loewen is a founding member of the U.S. Department of Energy's Efficient Windows Collaborative.