Fortochka information

A window with a fortochka (in the upper left corner)

A fortochka (Russian: фо́рточка, IPA: [ˈfortətɕkə] ^ⓘ) is a small ventilation window generally not greater than 35x45 cm.^[1] It usually spans the frame of one window pane and opens on hinges independently of the whole window. Fortochkas are in common use in Russia, other post-Soviet states (Ukrainian: кватирка, kvatyrka), and Finland (Finnish: tuuletusikkuna).

A fortochka can be used for ventilation during cold winters, when opening a whole window would be impractical for heat conservation purposes.^[2]

The window was designed by Italian architect Francesco Bartolomeo Rastrelli for the Winter Palace in St. Petersburg in 1754.^[3]

^ Martinot, Eric (1997). Investments to Improve the Energy Efficiency of Existing Residential Buildings in Countries of the Former Soviet Union (1. print. ed.). Washington, DC: World Bank. p. 117. ISBN 0-8213-4057-3. Retrieved 19 February 2013.
^ "Master: fortochka". cr.middlebury.edu. Retrieved 2023-09-12.
^ "Russian 'Fortochka' window". en.villumwindowcollection.com. Retrieved 2023-09-12.

[1] Martinot, Eric (1997). Investments to Improve the Energy Efficiency of Existing Residential Buildings in Countries of the Former Soviet Union (1. print. ed.). Washington, DC: World Bank. p. 117. ISBN 0-8213-4057-3. Retrieved 19 February 2013.

[2] "Master: fortochka". cr.middlebury.edu. Retrieved 2023-09-12.

[3] "Russian 'Fortochka' window". en.villumwindowcollection.com. Retrieved 2023-09-12.

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