The lower a window s solar heat gain coefficient the less solar heat it transmits.
Vinyl window shgc values texas.
Solar heat gain coefficient shgc the shgc is the fraction of incident solar radiation admitted through a window.
Product line cpd number u factor shgc frame type pg climate zones.
The window u rating is reflected as a.
Whether a higher or lower shgc is desirable depends on the climate.
A window s u value also described as u factor measures the rate the window transfers non solar heat.
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It has rating values of 0 to 1 and just like the u factor rating lower values are better for hot climates like the one in northern california.
Solar heat gain coefficient shgc is the fraction of solar radiation admitted through a window door or skylight either transmitted directly and or absorbed and subsequently released as heat inside a home.
The solar heat gain coefficient shgc measures how much solar radiation passes through your window and is released as heat into your home.
Shgc is expressed as a number between 0 and 1.
Product line cpd number u factor shgc frame type pg climate zones.
The lower the shgc the less solar heat it transmits and the greater its shading ability.