It is a good idea to seal gaps around doors and windows in preparation for the winters. This will make your home feel warmer and help you save heating costs. There are many different types of weather stripping options available, the most common ones are covered in an article by This Old House :
V-Strip is a durable plastic or metal strip folded into a ‘V’ shape. The shape allows it to spring open. This bridges gaps in the doors and windows to make a seal. Install these along the sides of a double-hung or sliding window; on the top and sides of a door.
Usually sold in rolls, felt can be plain or reinforced with a pliable metal strip. It is not a very long term solution and will need to be replaced in a year or two. Install these around doors and window sashes to seal in the air.
This is a type of weather stripping sold in varying widths and thicknesses. Foam tape is made from foam or EPDM rubber with a sticky back. This allows you to get the right sizes for irregular-sized cracks.
Door sweeps fill the space between the door and threshold. They can be flat pieces of plastic, aluminum, or stainless steel fitted with a strip of nylon, plastic, or vinyl or a sponge brush. This blocks airflow from under the doors.
Tubular Rubber, Vinyl, or Silicone
Tubular rubber, vinyl, or silicone is an effective air barrier; versions made of a narrow sponge rubber or vinyl tubing come attached to a wood or metal mounting strip.
Family Handyman recommends a good looking alternative. High-quality silicone rubber weather stripping permanently seals gaps around exterior doors. This increases energy efficiency and looks good. The article explains how to replace weather stripping with silicone rubber tubing weather stripping.
Determine how large the gap is between the door and the frame. Measure the gap at three places along the sides and top of the door. This will ensure you have consistency in sizes and allow you to select the right size ( or multiple sizes). Choose the right size tubing based on the size of the gap. Use a tube of commercial-grade neutral- cure silicone caulk to make a seal. With the new silicone tubing in place, your old door will be as airtight as modern doors at a fraction of the cost of replacing the door and frame.
Pro Tip: Use WD-40 Specialist Water Resistant Silicone Lubricant to improve the life of the tubing.
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