ENERsign wood-aluminum windows, certified for cold climate zones

Our wood-aluminum windows, certified for cold climate zones by the Passive House Institute, feature a slim and elegant frame made of local coniferous wood and a corrosion-free aluminum outer shell for durability and weather resistance. The thermo rigid foam profile ensures superior insulation without thermal bridges, and the "zero-frame view" offers an all-glass appearance from the outside. These windows come with standard safety features like the ENERsafe window fitting and…



How Windows Make (or Break) Wall Performance, Illustrated

The thermal performance of your building’s walls is only as strong as the weakest link, and windows are too often that weak link. Even if you’ve gone to great lengths to build a super-insulated high performance wall, if you poke that wall full of holes, then plug those walls with mediocre windows, you will get a poorly-performing wall. Bad windows will ruin the best wall assemblies. Conversely, good windows can…