Diamond grille

Security screen with regular diamond grille design.

Double Glazed Unit (also known as Insulated Glass Unit – IGU)

Double Glazed Units refer to panels made of two panes of glass which are separated by an airtight space in between them. The space in between the glass is pressurised to create tension, which toughens the glass and makes it more resistant to breakage, improves its energy efficiency. To avoid moisture vapour and water droplets forming in between the two panels of glass, a dessicant, or drying agent, is used in the space. Double Glazed Glass is the best performing, strongest and most energy-efficient and sound-insulating glass, making it perfect for use anywhere in the home.

Double Hung Window

Double hung windows are made up of two panels or sashes which move vertically up and down. The top panel opens downwards, while the bottom panel opens upwards. The opening movement is controlled by spring balances, making it easy to open and close the windows, and allows you to leave windows open as much or as little as you want.

Emissivity

Emissivity refers to the ability and effectiveness of a material in emitting any thermal radiation (i.e. heat) that it absorbs. The higher emissivity a window has, the more absorbed heat it emits. Low-e glass has the lowest emissivity of all glass types, due to a special coating on the surface of the glass. In this way, it helps keep rooms cooler in summer, and warmer in winter.

Extrusion

An extrusion refers to the aluminium components of a door or window. They can include the window frame, as well as any bars which are placed on a pane to visually separate the glass pane. If your home is short on space, choose window and door designs with minimum extrusions.

Fixed Lite

Fixed lites are a type of window which are fixed, and do not open. They are used for views, and also to allow more light into the home. They can be placed in a wall alone, or can be installed directly adjacent to functioning windows and doors to make them appear bigger, and to allow more light to enter the room.

Fixed Panel/Fixed Lite

A fixed panel or fixed lite is any panel in a window or door which does not open or close. Often they are installed around or beside operable windows and doors for aesthetic purposes, or to increase the amount of light entering a room, while keeping the operable part of a window or door to a certain desired size.

Flame Zone (FZ)

Flame Zone (FZ) is the highest BAL (Bushfire Attack Level) that buildings sustain. Flame Zone refers to direct exposure to flames, as well as ember attack and heat flux.

Flashing

Window flashing is a plastic or metal strip of material which is installed around window jambs, designed to prevent water leakage into the surrounding wall. Windows which are not made completely watertight with effective flashing can let water seep into the inside of walls (particularly in wet and very windy weather conditions) potentially causing rot and other water damage over the long term.

French Doors/Hinged Doors

French doors, sometimes also referred to as hinged doors, are a type of door in which the two opening edges of the door are adjacent to each other. They can be configured to open inwards or outwards.

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