If you have double hung wooden sash windows with storm windows that are drafty, there are several ways to make them more energy efficient. Make sure the glazing on the glass panes of the sash windows is not cracked or crumbling. The glazing helps hold and seal the glass to the wooden window and thus blocks drafts and quiets rattling – especially from traffic. It also lessens the likelihood that the glass will break if a pet or a child presses against it. Glazing is something of a skilled art. That being said, it’s not that hard to do. Re glazing a window yourself can save you $50 to $100 or more. All you need is glazing putty ($5), a putty knife ($2), some glaziers’ points ($2 for a box of 100) and some time.
First, remove any old, cracked, or crumbling glazing with a putty knife. Glazing putty dries to be very, very hard and will last decades. It can be loosened with a heat gun, but keep the gun moving or the heat will crack the glass.
When the old putty has been removed, remove all the old glaziers’ points. Now, lift out the pane and set it aside. Sand the channel where the pane fits on the wooden sash. Usually, I apply a thin bead of silicone caulk in this channel before replacing the glass. This helps to seat and seal the glass pane. This especially helps when working on multiple small panes (called “lights”) separated by thin or fragile wooden mullions (also called “muntins”). Next, insert new glaziers points. This is done by using the putty knife to press points into the wooden sash along the glass pane to keep it in place. Take your time so that you don’t break the glass.
Glazing putty can be purchased in either a can or a tube with a shaped tip that fits in a caulking gun. However, it does take some practice to get just the right angle and right amount of putty on the glass. When using the tube mix, keep the 45 degree angled tip steadily against the glass and lay a bead of putty the length of bottom of the pane. If you’re using the putty from the can, roll the putty into long snake (or rope) and place it along the edge of the pane and along the wood. Gently press it into position so that it forms a nice 45 degree angle with the putty knife. The putty is shaped this way so that water runs off the glass to the edge of the window sash instead of into the window pane channel where it can rot the wood.
The next thing to look for is if your windows close snugly. Both the top and bottom window have what is called a “meeting rail”. On the upper window, it is the bottom of the window and on the bottom window it is the top. These meeting rails are shaped so that they mesh together when they close. This helps seat and seal the window properly. Check to see if the bottom window runs firmly – but not tightly – along the window jamb as you close the window. If it’s too loose and wiggles back and forth, it probably won’t seat very tightly when it’s closed. You can use a putty knife to pry out the window jambs and then re position them to improve how tightly the window will close. You might try adding felt or self adhesive foam weather stripping. Also make sure you clean out any debris from the window to ensure the window will seat and seal snugly.
As metal storm windows age, the harder they seem to close. This usually happens because of dirt and corrosion. Make sure the window tracks are clean and free of dirt and debris so the window runs smoothly.
Outside, check that the storm window frame is held tightly in place against the wooden window frame. Screws that hold this frame in place might be loose and might need to be replaced or moved to a new spot. Most drafts from storms windows come from where the storm window frame meets the wooden window frame. Once you’re certain the storm window frame is secure, lay a bead of caulk into the seam where the metal storm window frame meets the wooden window frame. Typically, there are two slots cut into the bottom apron of the storm window frame. Do not seal these. These are weep holes that allow condensation to escape.
If you have modern, double glazed windows (windows with two panes of glass), one of the things to look out for is fogging between the panes. Double glazed windows are made by attaching a pane of glass with adhesive to either side of a half inch wide aluminum frame either in a vacuum or a very dry environment. It is then a single unit and is installed into a standardized window frame. Fogging is a sign that the seal on the window unit has failed and water vapor has penetrated into the space between the panes. If the fogging is still present in summer, it’s a good guess that acids have also leeched in with the water vapor and have permanently etched the window glass. If the fogging disappears when the window warms, then it’s not too late to treat it. Examine the wood of the window for any discoloration from moisture. Look for peeling, flaking paint or soft, gray colored wood. If you find some, sand it smooth and then seal it with an oil based enamel or polyurethane. If the wood is very soft, you might try using an epoxy formulated to penetrate and preserve rotten wood. Be sure to mask the glass first with painter’s tape.
A builder installs a door or window with wedges called shims so that the window can float inside a rough opening in the framing. While this lets the door or window open and close freely as it expands and contracts during the year, it also means a lot of outside air can infiltrate your house by getting in around the window frame if it has not been insulated or if it has been damaged. During the summer, it usually isn’t a noticeable problem. During the winter, though, if you see moisture or mildew there could be a problem with the window frame.
Look outside for damage to the siding and window frame. Look for holes or wet, rotten wood, or even a loose piece of siding. It’s important to clean and seal problems like these quickly, especially if moisture has been getting inside your wall, because the damage will just worsen over time. Rotten or damaged siding can be replaced easily with new pieces from the hardware store. Rotten or damaged window sills should be completely removed and replaced and the inside of the wall inspected for mold, rot, and other damage. However, this is no small job and requires time and skills to complete. It might need the hand of a professional. For an immediate, short term fix, clean out the rotten wood as best you can and fill the hole with fiberglass auto body putty. This will provide a hard, waterproof barrier against the weather. Be sure to contour and shape it so that it will not interfere with opening and closing the window.
If moisture or rain is getting into your window frame, check to see if any of your rain gutters run over head. Check to see if these are clogged. Also, consider installing drip edging along the top of your windows to help run water around and away from the windows and siding when it rains. After you’ve installed it, be sure to caulk it in place so moisture can’t penetrate behind it.
A lot of folks consider it hideous to put over your windows but it will keep the wind out: clear plastic sheeting. This is probably the easiest temporary energy fix owners of older homes use to keep cold, damp winter weather out. There are two approaches: Apply the clear plastic sheeting to the outside of the window by stapling it to the wood window frame and then nailing lathe over the stapled edge to secure the plastic. Or apply the plastic sheeting to double sided tape on the inside of the window frame (usually available in kits from the home center). To be sure, neither is an attractive solution. However, if you have an older home with double hung windows in poor condition, this short term fix does a lot for only $10 and about 15 minutes of work. In fact, even if your windows close snugly, it might not be a bad idea for a north facing window that doesn’t have much of a view.
Energy Efficient Window Treatments: “It’s Curtains for You!”
Curtains not only add style, color, and privacy to a room, they also act as an insulating blanket for one of the most thermally conductive parts of the house: the windows. Curtains are even more effective at sealing off a window when they have thermal backing. Thermal backing is usually foam because foam permits water vapor to move through the fabric rather than condensing on the cold side toward the window and causing moisture problems. An additional benefit to thermal curtains is that they help deaden noise from outside that is normally transmitted into the room by the window glass. In the summer, the curtains also block hot sun.
Thermal curtains can be made even more efficient by adding a valance with a top. Usually, window valances conceal the curtain hardware such as the rods and brackets. However, if the valance has a top cover, warm air that would normally circulate down between the cool glass and the back of the curtain is blocked. Valances can be made with plywood and then stained, painted, or covered in fabric.
Another option is a window quilt. These are blanket like shade that roll down to cover the window. Some are held tightly in place by magnetic strips attached to both the quilt and the window frame.
Finally, one last accessory for the double hung window is the Window Worm. This is a fabric tube about 2 1/2 to 3 inches in diameter and is as long as a window is wide. It is stuffed with quilting foam or cloth scraps and laid along where the top and bottom window sashes meet to help keep out drafts. Longer ones weighted with sand can also be made and placed across the foot of doors.
Author Resource:
Bounce Energy is a based in Houston. Bounce Energy's goal is provide more than low Texas Electricity Rates to our customers. With innovative and flexible plans, excellent customer service, and superior customer rewards, Bounce Energy offers a unique approach to Texas electricity.
![[Valid RSS feed]](http://www.look4articles.com/images/icon_Rss.png "XML Feed For RSS"){kind=icon}
Category Rss Feed
Print This Article
Add To Favorites
![[Valid RSS feed]](http://www.look4articles.com/images/rss.jpg "XML Feed For RSS")