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Save Money Weather Stripping Your Doors

Updated on February 1, 2016

Weatherstripping Saves Money

Air infiltration, when air moves from one area to another, is easily the biggest source of energy loss in a building. Lost energy means you lose money.

Fortunately, air infiltration is also one of the easiest things to fix.

We are going to talk about how to identify where inside air and outside air gets mixed. Weather-stripping your doors is the best energy saving tip you could ever get.

Get a Blower Door Test

Obviously, if you are experiencing drafts in your house, you have a leak and it is usually not difficult to find out where it's coming from.

Yes, one big leak can make a big difference in your comfort level. Many small leaks can also add up to significant heat loss rather quickly. Those little leaks are much more difficult to identify. You can find instructions about turning on all exhaust fans in your house, go around windows and doors with an incense stick. That might work for some. For me it didn't.

What you really want is a professional blower door test. This video shows you not only how it's done, but also what it tells you and how to fix some problems.

You may be able to make your own blower door, but that will have to be a discussion for another day.

Blower Door Alternative - Infrared Thermometer

An infrared thermometer is similar to the ones you use in your child's ear when they have a fever.

Simply point it to the suspect areas and you'll immediately see difference in temperature when cold air is coming in.

How to Weatherstrip a Door

This is a simple project sealing an inside door leading to an unheated attic space. The procedure works on any other door as well.

Weather Stripping Products - Foam Tape

The easiest weather stripping material to install is by far the foam type. It comes in two varieties, open cell and closed cell. You will probably want the the closed cell type. It is a little more durable and water and air cannot pass through it.

Foam type stripping is usually made of either rubber or vinyl, rubber being the stronger and more durable variety.

Installation is as simple as removing the adhesive backing and attaching it to the appropriate part of the door. The video above will show you how.

V Shaped Strip

V shaped weatherstripping comes in two varieties, plastic or metal. The seal is formed into a V that closes when compressed and springs open when released. Sometimes also referred to as tension seal.

Door Bottom Draft Stop

Even if you get a good seal along the sides and top of the door, you still have to deal with the bottom. This is often the biggest and most difficult gap to seal.

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