Reduce your energy costs by draught proofing your sash windows, have lower utility bills, and be more comfortable in your home. If you have draughts, don’t despair. Repairing heat losing windows is very possible, with methods that can fit any need and any budget.
Sash windows move up and down in a frame, and are usually made of wood, though they may be metal or even hard plastic. This type of window is typical of older homes and houses built in traditional styles. The windows have two sections, one or both moving up and down to admit the outside air, or shut it out. They are attractive and pleasant to live with, until they lose their sealing power.
Once the windows get loose in their frames, the putty around the individual panes of glass loosens, and the caulking underneath the exterior trim no longer holds fast to the wall of the house, draughts begin to be felt. The insulating effect of the window is lost to a great extent, and heating bills rise.
Replacing the windows in a house is an expensive proposition, and new windows may not match the period of an older house. For either reasons, you may want to fix your existing windows. Your options will be to effect temporary blocking systems, such as weatherstripping, or to repair the windows and the fabric of the house so the whole is as good as new.
Temporary solutions may be simply blocking the air coming in from outside, or escaping from the warm interior to the outdoors, with weatherstripping. A common kind is felt strips with adhesive on one side. You simply press the strips in place, closing the gap between a window and its surrounding frame. This can reduce draughts and heat loss, though it may not be completely effective. Weatherstripping can also be made of foam or the plastic, pliable cord that comes in rolls and is pressed into place like clay.
If the trim is removed and care is taken, weatherstripping can be invisible, but many times appearances give way to the seasonal need for draught proofing. Some homeowners use plastic sheets that seal the whole window on the inside, using heat to make them fit tightly, or inserts of glass that do the same thing.
A better way is to take the time and trouble to dismantle the window, remove the outer trim and repair or replace the caulk that fills the gap between the frame and the wall. The inner trim can be removed as well, to weatherstrip around the frame on the inside without leaving the stripping material in plain sight. Old putty should be removed from each pane and new putty applied, and even the pulleys, sash cords, and beads can be replaced. A good thing to add in this complete renovation is hidden, stiff brush strips that allow the window to slide open and shut but make a tight seal against the weather.
Reduce your energy costs by draught proofing your sash windows, either yourself or by getting professional help, and reap the rewards of comfort and energy savings.
Get the inside skinny on how to reduce your energy costs by draught proofing your sash windows in our secondary glazing london and top sash window insulation company overview.