Structural Restoration of Windows Structural Restoration of Windows

Many people automatically think that they have to replace their old wooden windows when they notice that they've rotted. Frequently, however, there is no need to replace them at all. The problem is the fact that the wood used in replacement sashes is low quality. People will find that the original wood used in the sashes may be old hardwood, which can turn out to be quite easy to repair and restore, with using a just a little bit of putty and caulk or epoxy in the joints.

The weakness in double hung sash windows can be found in the joints. The sash (the part of the window that goes up and down) is made up of rails, which are pieces of wood that surround glass panes. These rails are held together by mortise and tenon joints. They are made very tight, which prevents the seams from being seen. What makes the joints so weak is the fact that the bottom sashes sit on the sill with the end grains exposed. In the summer when storm windows are open and rain water gets in, they soak up moisture into the adjacent joint. The bottom rail of the top sash has a horizontal surface. Condensation will seep into the joints when it sits.

Those who don't maintain wood sashes use combining the weaknesses as a viable excuse. The joints are exposed when putty falls out, thus letting the joints rot. When seams open up on this inside, they become susceptible to condensation throughout the winter season.

Instead of replacing old sashes, it is actually smarter and less expensive to restore them. This is because the wood in old sashes is rather hard. In addition, their appearance will fit better with the decor of most older homes. The sash could last possibly another hundred years if they are rebuilt with epoxy and the putty is replaced with permanent caulking. Replacement sashes made out of any kind of material will not last as long as a restored old sash.

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