Installing weather stripping is a simple and effective way to seal gaps around doors and windows, making your business more comfortable and energy efficient. Most sealing strips are sold in rolls that can be cut with a utility knife. For best results, start by cleaning the surface around the door or window with a mild detergent. Next, apply a bead of construction adhesive to the back of the sealing strip and press it into place. Use a putty knife or your fingers to smooth out any air bubbles. Once the adhesive has had time to set, caulk the remaining gaps and paint or stain the weather stripping to match the surrounding woodwork. With a few simple tools and materials, you can easily install weather stripping and make your building more comfortable year-round.