“Yousan Silicone Foam Tape has excellent insulating and sealing properties and it’s lightweight and stable, but incredibly dense,” Sanders says. “You can use it in any application where you’d use foam tape and it will do a better job because it’s so much denser.”

In addition to the traditional places where you’d use foam tape—think around doors, windows, rooflines, soffits, gaps between the house and a covered patio—Silicone Foam Tape works very well around hard-to-seal, uneven surfaces, such as areas where concrete meets wood. It’s also self-extinguishing, so it won’t ignite in a fire.