How Do Double Pane Windows Insulate?
Windows and Panes With the price to heat and cool an average home going through the roof, saving energy has become a high priority for many homeowners. After you’ve insulated your attic and walls, it’s time to turn your attention to your windows. According to Paul Fisette, writing for the Building and Construction Technology department of the University of Massachusetts, Amherst, “Most (windows) are 10 times less efficient than the wall area they replace. An average home may lose 30 percent of its heat or air conditioning through its windows.” Insulating Windows An average single pane window will have an R-value (a measure of heat flow resistance) close to zero. A single pane of glass will keep the wind from blowing through the house but provides almost no protection from conductive heat loss. Double-glazing is the practice of putting two panes of glass separated by dead air space in the window frame of 1/4 to 1/2 inch. The air between the panes of glass slows the transfer of heat and
