“The room seems trashed beyond repair, while light spills through the casement windows beyond which green things are growing.”
“The lack of internal shutters suggests that there may have been leaded casement windows before the double-hung windows were installed.”
“For example, the original painted double-hung windows were replaced with simple Douglas fir frames, which hold casement and hopper windows.”
casemate
A bombproof chamber, usually of masonry, in which cannon may be placed, to be fired through embrasures; or one capable of being used as a magazine, or for quartering troops.