Purpose:

Weather stripping doors and windows helps prevent unwanted air from leaving or entering a house. This reduces the amount of energy consumed in trying to maintain comfortable temperature levels within a house. Weather stripping is an easy to install energy saver, which provides savings.

Things to consider:

An easy way to determine whether a window needs to have weather stripping is to have a friend shine a flashlight from the outside at the rim of the window. If you can see light coming through the perimeter of the window then the window needs to have additional weather stripping. This test should be ideally done in dark conditions or at night.