Among the construction variety, metal tiles are the most popular building material for roofing all over the world.
The most famous is the tile with a steel base. For it, a cold-rolled sheet is used, which is then hot-dip galvanized on both sides. This makes almost five times more corrosion resistance.
Slightly less popular metal tile with an aluminum base. For sufficient anti-corrosion protection, it is coated on each side with a special varnish. A metal tile on an aluminum base is more expensive than on a steel one, but its installation is much more difficult. You can view the directory by browsing.
All because of the instability of aluminum metal tiles to deformation. This is followed by passivation and polymer coating. It is this that gives different colors to the metal tile.
For protection, the inside is covered with epoxy paint.And at the end of the manufacturing process, the sheets are profiled, giving the necessary texture. A metal tile made according to the correct technology will please at least twenty years. It, according to the manufacturer's warranty, will not have to be painted or repaired.
By and large, the quality and, accordingly, the cost of metal tiles depends on the polymer coating. It is it that is responsible for the invariance after light mechanical stress and resistance to temperature extremes.
There are the following polymer coatings:
- acrylic (acrylate) - heat resistance, low anti-corrosion, instability to ultraviolet radiation, suitable for temporary buildings;
- polyester - medium resistance to aggressive environments, matte finish resists ultraviolet rays, when sprinkled with quartz sand, reliability increases, but the price doubles;
— plastisol — sufficiently strong application, resistant to various influences, low heat resistance, high decorative functionality;
- Pural - high resistance to harmful manifestations of the external environment, resistance to fading, but subject to plastic deformation.
- PVF2 - high strength, resistance to aggressive natural environment, plastic deformation and damage.
Metal roofing requires certain conservation conditions. Avoid storage near fertilizers, acids, alkalis, salts, in a corrosive atmosphere. For long-term storage, shift the sheets with slats.
The installation of metal tiles should be approached with deep responsibility.This depends on the service life. Almost all manufacturers accompany the produced metal tiles with special instructions, which describe in detail the method of roofing.
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