Singlehungwindowsaretypicallythesameasdoublehungwindowshowever
withasinglehungwindowdesignonlythebottomsashslidesupward.
Doublehungwindowsallowforthesashestoslidebothupward,and
downward.Otherthanthatsinglehungwindowsareidenticaltodoublehung
windowsandarewidelyavailableinthesamesizesandshapes.
Becausetheyopenupinsteadofout,single-hungwindowsdon'ttakeup
exteriorspacewhenopen.Thismakesthemidealforareaslikeadjoining
walkways,porches,patiosandotherhigh-trafficareas.
Single-hungwindowsdifferfromdouble-hungwindowsduetothefactthat
theuppersashisfixedandthelowersashismoveable.