Wooden ones have four categories, which differ from each other by the presence of dark spots and knots on their surface.
The fewer stains and knots, the more expensive the material.
As for the choice of wood species from which the panel boards are made, it is better to choose pine, linden or cedar.
Plastic ones are good for damp areas, but direct bc data brazil will cause them to "fade".
They bend easily and hide uneven ceiling surfaces well, but cracks may appear on them due to constant stress.
MDF panels should only be used in dry rooms. Moisture can cause damage to the material, deformation and collapse.
After purchasing, you should not immediately cover the ceiling with them. The panels should lie down so that their temperature is equal to the temperature of the room where they will be installed.
Preparing for sheathing.
Diagonal sheathing
Before strengthening the frame, you need to prepare the ceiling covering. Gaps and holes need to be patched. The crumbling plaster is also removed.
It is essential to treat the surface with a special solution against fungus that may form under the cladding.
But it is no longer possible to restore the cracks.
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