Glossary

Knowing the right names for parts of your window can help you avoid confusion. Read through these important window parts terms and definitions for Durabuilt windows and you’ll be set.

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Triple Pane Glazing

The use of three panes of glass made into an insulated sealed unit for a window or door.

Triple Pane Window

Triple pane windows are 3 individual panes of glass separated by 2 chambers filled with inert gas.

U-Factor

Rate of heat transfer from warm to cold areas in watts per square metre Kelvin (W/m2K). The lower the number, the more efficient the product.

Vertical Slider

An operating style of window with a fixed top panel and a lower sash that slides up vertically with the aid of balances to provide ventilation.

Viancé

(Viv-ah-ch-eh) Durabuilt Eurostyle window and doors series.

Vinyl

Common term used for PVC (polyvinyl chloride) material used in window extrusions.

Visible Light Transmittance (VLT)

Ratio of the amount of visible light that can pass through a product. The higher the number, the more light can pass through.

Weatherstripping

Material around operating sash or frame designed to reduce air leakage or water penetration or both.

X-Drive

Casement and awning rotogear operator used by Durabuilt; manufactured by Roto®.

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