Marvin Windows and Doors has added additional certifications to its collection of passive building solutions, with the Clad Direct Glaze Polygon window now certified by the Passive House Institute U.S. (PHIUS). The company’s Clad Ultimate Casement is also certified by PHIUS.

“Windows are a key consideration in passive building design,” says Christine Marvin, director of marketing for Marvin Windows and Doors. “Because our products are handcrafted in our Warroad, Minn., facility, Marvin can offer builders a shorter lead time than international manufacturers. And our extensive independent dealer network means we can support the project from the time it’s drawn up until after installation. Marvin is known for working one-on-one with its customers to deliver the perfect windows for each project along with high-tech building solutions, and we can really shine in the passive building arena.”