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 offer good insulation but require maintenance to prevent rot and decay. uPVC frames are low maintenance and generally provide strong thermal performance. Aluminum frames are strong and slim but can conduct heat unless they are thermally broken; they are often used for large or high-traffic windows. Composite frames combine materials to balance aesthetics, durability, and insulation. The performance of vindusrammer is influenced by sealing, glazing, and installation details, with typical metrics including U-value, air leakage, and water resistance.

Types and configurations: Frames are used with various sash styles such as casement (hinged on the side), double-hung (two movable sashes), sliding, and fixed units. Modern frames frequently accommodate insulated glazing units (IGUs) with coatings that reduce heat gain.

Regional use: In Nordic regions, timber frames have historical prominence, while contemporary constructions commonly employ uPVC or aluminum for durability and energy efficiency. Proper installation, maintenance, and compliance with building codes influence long-term performance.