PEMkütuserakendid

PEMkütuserakendid refers to a type of window commonly found in older Estonian residential buildings, particularly those constructed during the Soviet era. These windows are characterized by their specific construction and materials, often featuring wooden frames and multiple panes of glass. The term "PEM" is believed to be an abbreviation related to building materials or construction methods used at the time, though its exact origin is not widely documented.

These windows were designed for functionality and affordability, often being single-glazed or having simple double-glazing. The frames were typically made of solid wood, which, while offering good insulation when new, could degrade over time due to exposure to the elements and lack of maintenance. This often led to issues such as drafts, poor thermal efficiency, and condensation.

Over the years, many PEMkütuserakendid have been replaced with modern, more energy-efficient window systems made from uPVC or aluminum. However, in some historic buildings, efforts are made to preserve or restore these original windows to maintain the architectural integrity of the structure. Restoration often involves repairing or replacing damaged wooden elements, sealing gaps, and sometimes upgrading the glazing to improve insulation without altering the overall appearance of the window. The upkeep and replacement of these windows remain a consideration for property owners in Estonia.