What is the default SHGC value for a vinyl framed, single glazed tinted window?

The default Solar Heat Gain Coefficient (SHGC) value for a vinyl framed, single glazed tinted window is set at 0.60. This value reflects the ability of the window to regulate solar heat gain, which is important for energy efficiency in building design.

A vinyl frame is commonly used in construction due to its durability and insulation properties. A single glazed window, while being less energy-efficient than double or triple-glazed options, allows for a baseline understanding of heat gain characteristics. Tinted glazing can help reduce glare and solar heat gain, which is why the selected default SHGC value takes into account the effects of tinting on the window's performance.

The value of 0.60 indicates that 60% of solar radiation strikes the window and is absorbed or transmitted into the building. Understanding SHGC values is crucial for HERS raters when evaluating a home’s energy efficiency, as it helps in determining how much heat is gained through the windows and how effective the glazing is at managing solar gain, impacting overall heating and cooling costs.