Fusion-Welded Vinyl Windows

Sovereign fusion-welded vinyl replacement windows from Alside promise users comfort and energy savings. All seven styles—double hung, bay and bow, sliding, awning, casement, and garden windows, plus sliding patio doors—feature Quad 4 fin seal weatherstripping and a network of airtight insulating chambers to help keep indoor temperatures consistent. Sashes on double-hungs tilt in for cleaning. The windows can be upgraded with an energy-efficient ClimaTech Prime insulated glass package, which includes three panes of low-E glass, argon gas fill, and a choice of several configurations of warm-edge spacers. alside.com