i have a fully fininshed basement that we like to hang out in, in the winter. there is also a bedroom down there...well i have it nice and sealed tight everywhere except for the glass block windows...they are newer, the Previous owner had them installed....and they are the only source of cool air. you put your hand up near them, and can just feel the cold rushing in...they both have the little vent windows that flip open from the inside. the weather stripping is like brand new and they are locked tight but still leak air. does anyone have any tricks to winterproofing these things? im thinking of just buying one of the plastic kits...and taping it up there. but the only thing im wondering about is because they are fully boxed in with drywall, they have no mouldings or anything to tape the plastic too....so would i just tape to the outer edge of the glass block?