Aluminum roof - installation and repair
Aluminum does not have such a long history of use in roofing as copper or steel, since this metal was widespread only in the 20th century, it is considered relatively "young." When craftsmen noted light weight, improved anti-corrosion properties and flexibility of the material, aluminum roofing became a real alternative, strong competitor for other metal coatings, the price of which is much higher. In this article we will talk about how to block the roof or repair the old waterproofing layer using roofing aluminum.
Types of aluminum roofs
Aluminum is a light but durable and flexible metal with which it is possible to create a new or repair an old, worn out roof covering. Aluminum roofing, due to corrosion resistance, long service life, attractive appearance, is often used in the construction of cottages, small apartment buildings, commercial or industrial buildings. The following types of coatings are most commonly used:
- Folding aluminum roof. This term is called waterproofing coating, consisting of aluminum roofing paintings, connected by double or single fold connection. Due to the solid castle, which is located outside the plane of the roof, the roof is perfectly protected from the penetration of precipitation.
- Metal tile from aluminum. Metal tile is a modern roofing material, the profile of which is attached to aluminum sheets by stamping. The structure and high flexibility of the metal makes it easier to process workpieces, giving them a complex relief.
- Decking. Sheet roofing is called aluminum roofing sheet, whose profile resembles rectangular or trapezoidal waves. Additional stiffening ribs give that material a high bearing capacity, and the longitudinal profile effectively removes water or snow mass.
- Shingle. Shingle roofing - a piece roofing covering, which consists of separate blanks, called dies. Stacked in 2 or 3 layers m overlap, they create a reliable waterproofing layer, reminiscent of scales. To perform repairs and flooring of such a coating is quite problematic.
Note! All aluminum roofing materials are divided into three types: with a paint coating, with polymer protection and no coating at all. From the point of view of protection against corrosion, a polymer film has a maximum efficiency, the price of which is higher. But even uncoated aluminum is not susceptible to rust due to the special oxide film, which does not allow the metal to enter into an oxidative reaction with oxygen.
Virtues
Aluminum roofing is one of the most popular types of metal roof coatings in Russia. It is characterized by ample opportunities for use in roofing. Lightweight allows the use of materials based on aluminum allow you to repair old coatings without dismantling, and the high flexibility of the metal helps to block the roofs of complex configurations. Virtuesми кровли из алюминия считают:
- Long service life. Due to its high weather resistance and corrosion resistance, aluminum retains its operational properties for more than 100 years, which roughly corresponds to the service life of zinc-titanium and copper roofs.
- A light weight. The square meter of aluminum coating weighs only 2 kilograms, which facilitates the transportation, lifting and installation of materials based on this metal. This quality allows using aluminum coatings to repair old roofs without strengthening the roof frame.
- High reflectivity. Without a paint or polymer coating, the aluminum roof resembles a mirror that reflects the rays from the roof and prevents it from overheating.
- Mechanical strength. The high bearing capacity of the material, which is additionally enhanced by the profile of metal tile and corrugated flooring, provides aluminum-based coatings with resistance to high snow and wind loads.
- Rust resistance. Oxide film covering aluminum protects the material from corrosion better than any paint or polymer coating.
Note that aluminum-based roofing materials cannot be called cheap, but because of their long service life, they are considered economical. In addition, the strength and high bearing capacity will reduce the cost of organizing the truss frame for flooring such coatings.
disadvantages
Aluminum roofing is one of the types of metal roofing, which has all the advantages and disadvantages of this category of waterproofing materials. ATIts disadvantages are explained by the properties of the metal and can be easily stopped by observing the roof mounting technology. Anyone who is going to perform repairs or flooring a new aluminum coating, you must be prepared for the following properties of this material:
- Strong thermal expansion. Like other metals, aluminum has a high degree of thermal expansion, so it can not be rigidly fixed on the crate to avoid deformation and damage to the coating.
- High thermal conductivity. The molecular lattice of the metal allows aluminum roofing to quickly heat up in the sun and also cool down quickly in the cold season. To reduce the influence of ambient temperature on the roof of aluminum, you need to include in the composition of the roofing pie insulating layer, which increases the cost of the roof.
- Low noise insulation. In fact, the roof of aluminum - sheet metal, the thickness of which does not exceed 2-3 mm. Roof paintings vibrate and resonate during hail, wind or rain, increasing the noise level.
Important! Repair and installation of aluminum roofing is a task for experienced, professional craftsmen with special knowledge and skills to deal with this capricious material. Made without compliance technology, the roof of aluminum will not last for a long time, so the amateur should not start working with this expensive metal.