Abstract: A merchandise display case has a housing having a plurality of housing walls forming an access opening, a roller-type cover shiftable between an extended closed position extending across and substantially closing the opening and a retracted open position generally clear of the opening, and a seal engaged between the cover and at least one respective wall of the housing. The cover has a pair of opposite side edges and an end edge bridging the side edges. The seal is engaged with at least one of the edges.