%0 Journal Article
%A Joseph H Klems
%B ASHRAE Transactions
%C Kansas City, MO
%D 2002
%G eng
%L LBNL-51453
%T Measured Winter Performance of Storm Windows
%V 109, Part 2
%1 <p>Windows and Daylighting Group</p>
%2 LBNL-51453
%8 07/2003
%X <p>Direct comparison measurements were made between various prime/storm window combinations and a well-weatherstripped, single-hung replacement window with a low-E selective glazing. Measurements were made using an accurate outdoor calorimetric facility with the windows facing north. The double-hung prime window was made intentionally leaky. Nevertheless, heat flows due to air infiltration were found to be small, and performance of the prime/storm combinations was approximately what would be expected from calculations that neglect air infiltration. Prime/low-E storm window combinations performed very similarly to the replacement window. Interestingly, solar heat gain was not negligible, even in north-facing orientation.</p>