vindusrammer
Vindusrammer are the structural surrounds of a window, forming the frame into which the sash or glazing unit is set and providing the opening for the window to operate. The frame is anchored to the wall opening and serves to resist wind loads, support the glazing, and provide weather sealing. Typical components include the head (top), jambs (sides), and sill (bottom). In many cases the frame is part of a single piece, while in others it is built from multiple members joined together. The glazing unit or sash may be fixed within the frame or movable, depending on the window style.
Materials and performance: Window frames are made from wood, uPVC (PVC), aluminum, or composites. Wood frames
Types and configurations: Frames are used with various sash styles such as casement (hinged on the side),
Regional use: In Nordic regions, timber frames have historical prominence, while contemporary constructions commonly employ uPVC