First you need to choose the material for their prisoners. Woods for the manufacture of windows are selected based on the requirements for sufficient strength, confrontation between the warfare and technological suitability for this product.
Both coniferous species of wood (for example, spruce or pine), and deciduous (for example, oak) are used.
With relative cheapness and technological work, windows made of spruce or pine are not so durable. For these varieties of wood, special protection against moisture exposure should be provided. Due to the relative softness of spruce and pine, with mechanical influences on the surface of the windows, noticeable traces appear on them, for example, marks on the windowsill remain from pots with flowers.
Windows made of oak or larch will last a lot of longer, but their heat -insulating properties are worse. Due to the significant specific weight of the oak, the windows from it are difficult for them to need very strong accessories. Since oak drying is quite complicated technologically, only an experienced manufacturer can conduct it qualitatively.
Experts consider the “golden middle” window from the larch window. They are strong and easy enough, resistant to moisture and insects.
