There is a chill in the air, the North Wind has an extra bite and a draft is coming through the windows. What can you do?
First, open and close the window and look for any torn or missing weather-stripping on the sash. Make sure the window lock is adjusted properly to close the window tight against the weather-stripping. If there are storm windows, make sure they are shut and latched properly.
Next try to determine where the air is coming in. Make sure all of the windows are closed. Make sure window coverings are held away from the glass and will not ignite. Light a candle and hold the flame near each window, fairly close to the window at the seam between the widow frame and the sash. Move the candlestick slowly around the frame and the sash, pausing to allow the flame to steady. If the flame bends or flickers while in the pause mode, then there is probably a leak, mark the area with a piece of tape or a sticky note and continue around that window and the others in the home and mark any suspect area.
Once you have identified the problem areas and drafts, you need to seal them up. Some methods can be completed by the homeowner; other, more complicated methods of repairs may be best left to a contractor.
- Weather-stripping can be purchased at a hardware store or home center. Different products are available, most commonly plastic, felt, foam or metal. These materials can be cut and pressed into the gaps between the frame and the sash, or installed on the frame and pressed against the sash to create a good seal.
- Caulking is usually installed on the exterior, so this is a task for warmer weather. Caulking can be applied where the trim meets the window frame and where the trim meets the wall covering. If old, deteriorating caulking is in place, remove it by scoring the caulk where it meets the trim and the frame, and remove it with a putty knife or chisel. Make sure to clean the area well with a brush before applying new caulking. A good exterior latex caulk may be preferred for ease of application and cleanup, this type of caulking is usually paintable if the caulk does not match the window or if you wish to paint the window in the future. Be sure to follow the installation instructions on the tube of caulking for proper installation.
- Insulating film. If the window will not be opened during the winter months, then a layer of shrink film can be applied to the window. The film is usually applied to the window using double-sided tape. The window trim should be clean so the tape will stick properly, then apply the tape and film as directed in the instructions. This film is usually removed in the spring and summer months so the windows can be opened.
- Replacement windows. This is usually an expensive venture, but in most cases the cost of the replacement is at least partially recouped in the sale of the home. Until the home is sold, you still have the benefit of fewer or no drafts and lower energy bills. Proper installation and insulation is important when replacing windows.
Several options are available to reduce drafts, and your local utility companies may offer energy audits and recommendations for weatherization contractors to help limit the amount of energy lost by drafty windows.
Submitted by Kenn Garder, Technical Support, NPI/GPI Corporate