Its major drawback is that it wears quickly and cannot be used where friction occurs, such as the sash channel of a double-hung window. Sliding Windows Weatherstripping for sliding metal windows is best installed by a professional glazier or weatherstripping contractor, since it is difficult to find anything on the market for home installation. The tubular or bulb vinyl type is reusable season after season. This is especially good for sliding glass doors. Once you have cut it to the proper length, simply press the flanged protrusion into the gap to be sealed, either inside or out.
Some types require nailing to secure it.
Space the nails 4 to 6 inches apart. One thing the packages seldom tell you is that you should never paint the tubular or bulb vinyl weatherstripping. Because it is a highly visible choice, many people attempt to camouflage it with paint. Unfortunately, this stiffens the vinyl and diminishes its sealing ability. If both sashes move, weatherstrip them as you would for a double-hung window.