Lasitettu

Lasitettu is a Finnish adjective meaning glazed or glassed, derived from the verb lasittaa, “to glaze with glass.” It is used in architecture and real estate to describe spaces that have been enclosed or covered with glass, often to create year-round usable areas. Common examples include lasitettu parveke (glass‑enclosed balcony) and lasitettu terassi (glass-covered terrace). The term can also apply to glass walls, roofs, or other elements that form a glass enclosure.

In construction, lasitus typically involves glass panels set in a frame, often made of aluminum or UPVC. The glazing can be single, double, or triple as needed for weather protection and energy efficiency. Safety glass, such as tempered or laminated glass, is frequently used, and configurations may be fixed or operable (for example, sliding or folding panels). The concept is widely used in both new buildings and renovations, and it appears in real estate listings to indicate spaces that can be used throughout the year.

Benefits of lasitettu spaces include expanded living area, protection from wind and rain, reduced drafts, and potential energy savings. Drawbacks can include maintenance needs, condensation issues, higher upfront costs, and, in some locations, the need for planning permissions or homeowners’ association approvals.

Etymology and usage notes: lasitettu is the past participle form, signifying that the space has been glazed. It is typically used attributively before a noun (lasitettu parveke) or predicatively (parveke on lasitettu).