Argon Filled Windows R Value

The lower the number the better the glass.

Argon filled windows r value.

Insulated glass windows also called double pane glass typically have an r value of around 2 0. Argon typically represents a better value overall especially with double pane windows. A virtually invisible low e coating is applied to the glass to help reflect heat and keep your home comfortable. The inert gases also don t move easily so gas filled windows have fewer internal air currents that can cause hot and cold spots in conventional windows.

The total heat transfer out of a window btu hr sq ft f or w sq m c. Argon is a safe odorless colorless naturally occurring gas which is denser than air 40 denser than air. Thermally efficient argon filled window units have low r values. 4 building construction ff 1.

Choose to add optional argon gas between the panes to act like an insulating blanket and reduce heat transfer. Framing cladding frame type and other items will affect the overall thermal values of a complete window. Argon for instance typically increases the insulating r value of a window by only half a point. A gas filled window has an r value about.

Regardless of the season low e argon gas windows ensure the climate is stable in your home. You might also like. Storm water can be collected from a roof and used for garden irrigation or toile flushing. Being cheaper argon is usually used to fill the wider 1 2 inch spaces between panes in double pane windows while krypton.

Chapter 4 building construction. All c o g u and r values are based on ashrea winter conditions. 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. That s a 31 decrease in heat loss.

Argon gas windows have an increased r value which is the measure of resistance to heat. An insulated argon filled double glazing unit 24mm can have a u value as low as 1 1. That means argon gas windows are more resistant to heat causing them to lose less heat during the winter. Energy efficient windows use two or three panes of glass to slow conduction and maintain comfort.

As mentioned above the increased r value is due to the the molecules being dehydrated and moving less. 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.