Wood window frames look very nice on older homes. There is just one catch; they have a delicate nature when compared to vinyl or plastic window frames. Ergo, if you need to replace the wood window frames you have, here are some recommended approaches and tips to help extend the life of the new frames.
If you are replacing your old wood window frames because they were rotten, and there is mold/mildew present, be sure to have a mold remediation specialist address this problem before installing new wood. The mold/mildew can spread to the new wood, and then you would have to replace your window frames again in less than a year. Addressing this issue now means that your new window frames will be free of anything that could ruin them. Then you will not have to replace your new frames for quite some time to come.
Use Only Pretreated Lumber
Pretreated lumber is lumber that has been soaked and/or coated with a chemical that prevents the development of mold and/or mildew. This type of lumber is commonly used for exterior decoration and decking material. When you start with pretreated lumber, you are giving your new window frames a head start on a longer life.
Use Outdoor Paint, Primer, and Sealer in One
If you are going to custom-make your own wood window frames, or hire a window contractor to do it, be sure you use outdoor paint, primer, and sealer in one. This cuts down on labor time and does an excellent job of fully coating the lumber. The sealant in the paint also protects the wood after you have painted the wood.
You can test the efficacy of the paint product after it has dried by sprinkling the painted wood with water. The water should bead up and trickle off the wood. Paint the wood either before or after it is cut to make the window frames. If you paint before the wood is cut, be sure to paint the cut ends so that the wood is entirely coated, covered, and sealed against the weather.
Be Sure to Caulk the Seams and Open Spaces
As you assemble the window frames and install them, be sure to caulk the seams of the frames. This prevents water from seeping through the seams. Also, apply caulk to any open areas where the frames do not lay flat against the house. These areas are especially susceptible to leaks.