The tightness of

The house built from a wooden beam or shield house “plays” under the influence of natural factors, changes in temperature, pressure and humidity, as well as from the change of season, summer or winter. Due to the fact that the house "plays" can occur a skew of the doorway. Since the plastic door is softer than metal, it will “play” along with a wooden house, which can lead to a loose fit of the door leaf to the door box. As a result, the tightness of the door may be disturbed, and this leads to the loss of heat and sound insulation. Therefore, it is advisable to install metal doors in wooden houses.