Argon Filled Windows R Value

Argon is a safe odorless colorless naturally occurring gas which is denser than air 40 denser than air.

Argon filled windows r value.

That s a 31 decrease in heat loss. Replacement windows these days are often sold as double pane versions that not only feature two panes of glass compared to one on single pane windows but also are filled with argon gas in between the panes. For instance you can determine a window s u value with this equation. The lower the number the better the glass.

Insulated glass windows also called double pane glass typically have an r value of around 2 0 to. Double glass window low e with argon. An insulated argon filled double glazing unit 24mm can have a u value as low as 1 1. For the average detached you ll lose about 17 5 of heat through c rated windows and just 12 25 with an argon filled a rated window.

Although the gas will add around 30 40 to the price tag making them initially more expensive than other kinds of windows the added insulation and higher r value and u value will save you hundreds on your electrical and heating bills throughout the year. A virtually invisible low e coating is applied to the glass to help reflect heat and keep your home comfortable. Double pane windows are the solution for old inefficient windows. Quadruple glass with low e with krypton.

R value is also the inverse of u value. That s a big change. All c o g u and r values are based on ashrea winter conditions. In other words more energy efficient windows have lower u values.

Low e or low emissivity coating is a unique microscopic glaze that helps minimize the amount of ultraviolet infrared and visible light from penetrating the glass keeping you cooler in the summer and warmer in the winter. Double panes of glass in addition to a layer of a gas is the best way to insulate a window. The resulting u value is 34 compared to 64 in an aluminum frame. Regardless of the season low e argon gas windows ensure the climate is stable in your home.

Energy efficient windows use two or three panes of glass to slow conduction and maintain comfort. When used in conjunction with low e glass argon provides better insulation because heat and cold do not pass through argon gas as easily as through air providing better performance. In terms of window assemblies r value is less commonly used because it refers to a specific material component of a window i e. Argon for instance typically increases the insulating r value of a window by only half a point.

The total heat transfer out of a window btu hr sq ft f or w sq m c. The amount of heat retained by the window. Overall argon gas windows are a wonderful investment.