Have you felt cold air sneaking into your home as you walk past exterior doors? Cold entryways cause bigger problems than cold feet. A leaky doorway negates even the most energy efficient heating system. It is important to properly seal your home so that you aren’t wasting money heating the whole neighborhood. REenergizeCO can provide you with a comprehensive home energy audit that will quickly determine if you have any leaky doorways that need to be sealed.
Doors have fewer parts than windows, making them easier to seal. The ease of the project is dependent on whether or not the door is in something close to proper alignment. Weatherstripping must be added in a way that doesn’t bind the door to the threshold, evening the gaps around the door before starting work is the best way to do this. Reset and shim hinges as needed to create uniform gaps.
The weathering material used to seal doors is the same as that used to seal windows. Spring bronze or plastic V-strips are great material for the top and sides of the doorway. The bottom is more difficult to seal, especially where foot traffic is heavy. Standard weatherstripping, even metal stripping, wear out quickly in commonly used areas. Specially designed door seals for the bottom portion of the door include door sweeps, door shoes, and thresholds.
A door sweep attaches to the bottom of the door and it has a rubber gasket that drags along the floor or threshold to seals heat into the home. A door shoe fits on the bottom edge of the door and is fitted with a flexible gasket that presses tightly against the floor or threshold depending on the entryway design. A metal threshold with a rubber gasket is different in that it presses against the bottom of the door. These fittings can be used independently or combined depending on the scale of your problem. When a gap on the lower portion of a door is too large to be filled by a single gasket, it may be necessary to use a door shoe and a threshold to create an effective seal.
Even small gaps can be BIG problems. A 1/4 inch gap at the bottom of a three-foot long door creates a space equivalent of having a 3″ square hole in the middle of the door. Fortunately, there are straightforward solutions to sealing such gaps. Some of the most popular fixes include applying weatherstripping, installing a door shoe, a door sweep, or a threshold. If you need help sealing or testing the energy efficiency of your entryways, contact us at (303) 227-1000. We’ll be sure that your home is free of leaky entryways.