Materials for the manufacture of wooden windows and their advantages
The price, reliability and design of the window will differ from the tree breed. Some of the most popular are pine windows, they are affordable, quite high quality and have good insulation. Larch windows are more expensive and much stronger than from pine. Over time, its strength intensifies. The most expensive oak windows. Oak is the most durable and durable material, the only negative is its great weight.
The beam from which the frame itself should consist of several parts, and not of a whole piece. Glued beam is stronger and withstands temperature changes. Their strength is 80% more solid.
Typically, in wooden windows, the veneer of expensive breeds is glued to cheap wood (usually on a pine tree). Such windows are less reliable. If you decide to buy such windows, then choose that the veneer is to the maximum thicker.
There should not be knots and core of wood inside the beam itself. The frame should also be smooth and silk, without drunk paint. The square should not be attached with nails.
The minimum thickness should be 7.8 cm.
The window should have at least 2 sealing gaskets. The seal should not leave the grooves.
Good windows usually should not be cheap. Since the source materials and woodworking equipment are quite expensive.