Dictionary

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

Fanlight

A semicircular or semi-elliptical shaped window with glazing bars or tracery sets radiating out like an open fan. The window may be hinged at the bottom.

Finger joint

A way of joining wood pieces lengthwise. Uniform “fingers” are milled in both pieces, which are glued and pressed together.

Fire Escape Window

Windows, hatches and doors, out of which people can be rescued. If the open casement window presents too small an opening to comply with the Law, the window can be made with a removable mullion/post, transforming the window into one wide opening.

Fittings

Various hinges and closing mechanisms fixed to the window.

Fixed window

Window that cannot be opened, with no moving parts.

Flat glass

A type of flat glass developed with a new technique in the 1600s. The molten glass was poured onto an iron surface covered with fine sand to prevent the mass from sticking to the surface. The glass was flattened, and then polished on both sides to make it bright and transparent. The size of the surface fixed the size of the glass, however, max. 1 x 4 m. It is also called plate glass.

Float glass

A type of plane glass invented in 1959. A sheet of glass made by floating molten glass on a bed of molten tin. Heat is applied on both sides. This method gives the sheet a uniform thickness and a very flat surface without any visually disturbing draw lines. It was the first successful commercial application for forming very wide and continuous ribbons of glass.

Folding sliding window

Consists of two or more casements hinged together in a way that when operated they slide open and at the same time fold together.

Frame

The outer fixed part of the window fastened to the wall. The frame holds the window sash/casement and prevents the windows from collapsing in.

Frame screw

The screw/bolt fixing the frame to the wall.

French window

Inward opening two-light side hung window. The window has no mullion.

Fresh-air vent

Small fitting in a milled groove in the frame or casement enabling ventilation when the window is closed. Also called a slot valve.

Friction hinge

Allows the window to stay open in any infinitely variable position. Used for side and top hung windows. On projecting casements and projecting top hung casements the feature is integrated in the hinge.

Fully Reversible Hinge

Hardware/fitting on a side hung window enabling it to rotate 180 degrees, which makes it possible to clean the outside from inside. The fitting is used in Fully Reversible Side Hung Window.

Fully reversible side hung window

The window type has an operable side hung casement, which can rotate 180 degrees around a vertical axis while staying outside.

Fully reversible window

When opening the window the top sash moves vertically downwards towards the bottom frame. The casement can be reversed almost 180° around a horizontal axis while staying outside the house.

Functional window

Window from the architectural period Functionalism around 1925-1940. A typical functionalistic window is a corner window with steel casements. Also called modernistic window.