Murkka Swing is an outward opening wood-aluminium window with a frame depth of 115 mm and an external sash made from maintenance free aluminium. For cleaning purposes the window’s external sash can be rotated inside so the exterior glass can be washed from the room (two washable surfaces).

Heat retention:
U-value with standard glass 0.83
U-value with special glass up to 0.80 (VTT estimated, measurement 1230×1480)
Sound insulation: 
Rw = 33 dB