This radiation can cause your home to heat regardless of outside temperature which.
Shgc for the french doors.
South facing glazed doors in cold climates should have a high shgc.
A measure of how well a glazed door assembly absorbs or reflects heat from the sun.
The lower the shgc the less solar heat it transmits and the greater its shading ability.
Glazed doors in hot or temperate climates should have a low shgc.
Solar heat gain and u factor.
The circled value shows you the rating a door has received.
Energy performance data for select combinations of options is available in table format on each product page.
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.
Solar heat gain coefficient measures how well a product can resist unwanted direct or indirect solar radiation.
To access those tables select the individual product of interest and scroll down to the professional resources section.
The second is the solar heat gain coefficient shgc which is the amount of solar radiation that transfers through the window.
The lower the coefficient the better the glazed door is at blocking the sun s heat.
This tool provides some of the most common options on windows and doors and related nfrc certified values.
This tool gives you the flexibility to select the required energy star zone u factor shgc or vt and determine which milgard window and door products meet the selected requirements.
Each rating is split into two values.
For both measurements lower numbers equate to higher energy efficiency.