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DOOR FRAMES
The door frames of wooden windows today are normally present on the market in two materials: wood or galvanized steel.
Those in galvanized steel are adopted by many companies, especially for the benefit of being delivered disassembled and for resulting economic cost of transport.
Instead represent a disadvantage for clients especially for the high thermal conductivity of the material.
Door frames generally have a side in the light that determines the plane of the wall plaster.
When they are for roller blind the end of the flap is the guide to the cloth roll.
In all cases, therefore, the end of the flap is in contact with the outside temperature and in case of roller blind with considerable surface.
In the winter months the very low external temperature is transmitted through the plate until the frame that is in contact with the plaster, which, therefore, in the immediate vicinity, it cools.
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