Weather Strip Your Windows - Lowe's
(V- strip/ Tension Seal). Vinyl; Aluminum; Stainless steel. Sides of a double-hung or sliding window; Top and sides of a door. Durable; Invisible once in place. Could increase resistance in opening/closing doors or windows. Felt. Felt; All-Wool Felt. Around a door or window sash; In the door's jamb. Inexpensive Easy to install.