How to solve it? An upgrade door seal bottom with a bigger soundproof hole and 3 layers, just simply attached it to the door, all the troubles will be gone and save electric bill. Strong Self-adhesive Backing door sweep Using the strong adhesive and flexible door draft stopper with no harm to your floor. Pure white, fashion and simple, does not affect the beauty of the door. Sound Insulation and Saving money 3 layers design, reduce the sound more effective, reduce sound up to five times.Best door weather stripping bottom seal is the most efficient solution to stop the heat from escaping during winter and a great stopper to keep in the cold during summer, help you reduce electric cost. Door Seal Specification Size: 2" W x 39” L Suitable gaps:0-0.18" Suitable Door Material: Wood, Glass, Metal, Plastic Suitable Door:garage door,exterior door,storm door,rubber door,interior door,front door,automatic door,metal door,entry door,commercial door,aluminum door,steel door,retractable door,shower door and so on. Door Bottom Sweep Tips 1.If it peels off, don't worry!Take a lighter or a hair dryer to heat it, it will be more sticky. 2. Please DO NOT open and close the door high frequently within 24 hours after install. 3.To prevent friction,Lead to stripping,please left just a little gap, do not fully touch the floor. 4.Forever warranty, no matter how long, we also solve it for you 100%.