Roof painting requires a special approach both to work and to the choice of paintwork materials. To choose the best possible solution, you need to take into account many nuances. In the article we will talk about the best paints for roofing.
Content
Even a roof made from the best materials needs repair after a while, so it needs to be cleaned, repaired and painted. This last step is not as complex and difficult today as it used to be.
Not every type of roof can be painted the same way.It all depends on the material from which it is made, how much time has passed since its installation or the last reconstruction.
Currently on the shelves of hardware stores - a wide range of paints that are suitable for painting roofs from different materials. However, not all coatings are equally effective. When buying paint, you need to pay attention to the warranty period and weather resistance parameters.
Some experts recommend rubber paints, which are highly resistant to external factors, but lose their luster and quickly acquire a yellow tint.
Alkyd paints, on the other hand, are susceptible to washout, are not recommended for use on galvanized roofs, and paints containing vinyl compounds tend to dry quickly in dry and windy weather.
It is important to carry out roof painting work not only for aesthetic reasons in order to update the design of the facade, but also, first of all, to protect against harmful factors, such as:
The choice of paint and varnish coating is of great importance, since the strength of the protective coating depends on the correct choice of type, and affects how long the roofing material will last.
Sheet metal (steel) roofing is subject to changes in weather conditions (high temperature, frost, precipitation, wind). Any decrease or increase in temperature causes the material to contract and expand. As a result, small microcracks form on it, which become larger over time. Cracks are not resistant to water, which leads to corrosion of the metal after a short time.
Products intended for painting metal are not always synonymous with paints that can be used for painting roofs. Here it is important to remember the intense impact of the weather conditions to which it will be exposed. Therefore, it is good to choose such paints, whose manufacturers mark that they are excellent for roofing, indicating the types.
The most commonly used roofing coatings are vinyl and acrylic paints.
They are characterized by good mechanical properties, excellent adhesion to both metal and non-metal surfaces. Moreover, the coatings created by this type of coating are ductile, due to which they contract and expand with temperature changes along with the roofing sheet itself. The roof does not crack, as is the case with chlorinated rubber paints. And they retain their original color and physical properties unchanged for a long period of time.
Therefore, for reliable painting, you need to choose a roof paint that will withstand the most severe weather conditions, heavy rain, snow and high temperatures.
Their various types are used for different surfaces, whether it be galvanized steel, slate, tiles.
To successfully update the roof, the paint must have the following properties:
Most often, it is recommended to choose polyurethane paints for painting, rather than epoxy resins.
And that's why:
The use of conventional metallic paints is strongly discouraged due to the fact that once applied and exposed to strong sunlight, they release harmful chemical compounds, not to mention that they can quickly lose their color, or worse, they will begin to rub and scratch metal almost immediately. Over time, such spots cannot be painted over, so brush marks will not be visible and the appearance of the roof will be spoiled.
The most popular group, whose properties are in a very wide range (low performance paints and paints with very good performance parameters).As a rule, they are characterized by durability, wide color palette, resistance to washing and moisture.
They are most commonly available in 10L and 3L packages, ideal for galvanized and other metal surfaces. The product is an excellent anti-corrosion paint for roofs and other metal surfaces, in addition it is a primer and at the same time acts as a thixotropic top coat (2 in 1). After painting, it creates a durable matte finish with a high level of durability. It performs exceptionally well in changing weather conditions and is resistant to mechanical damage, which is the most important advantage of the product.
When applying it, you do not have to use an additional primer before painting, it adheres perfectly to the surface. It is recommended to thoroughly clean the surface, you can use a special emulsion to degrease the surface.
In order for the roof to remain in its original state for as long as possible after painting, it is necessary to properly apply the paint. In accordance with the manufacturer's recommendations, it is worth paying attention to the preparation, priming of the roof and the application itself. Some types, for example, do not require additional primer.
Thanks to the use of this type of paintwork, working time will be reduced.
They have poorer performance than acrylics (e.g. adhesion, biocorrosion resistance, durability, weather resistance). Their biggest advantage is ease of application and smooth finishes.
They are characterized by high resistance to various atmospheric factors (variable temperatures and ultraviolet rays), the process of self-cleaning of the coating from surface impurities during precipitation and very high resistance to water (in various forms). They exhibit hydrophobic properties and good resistance to biocorrosion (development of fungi, algae, lichens). Unlike acrylic, they have less abrasion resistance and color fastness. Available in a wide range of colors, they are included in the group of facade paints.
The use of phthalic and acid rubber paints is strongly discouraged for repairing roofing sheets. These are excellent paints that can be successfully used in many other situations. However, in strong sunlight, which is typical for the environment in which the roofing sheet is located, they quickly peel off. They are also characterized by a lack of resistance to changing temperatures, which will lead to their rapid cracking, poor adhesion to the roofing sheet and, ultimately, insufficient protection.
Alkyd paint, a new generation designed for metal surfaces, galvanized, aluminum and steel, is distinguished by the content of active substances with anti-corrosion pigment, which protects against external factors. The type of paint is suitable for painting exterior surfaces, ideal for roofing, drains, railings and gutters. Tikkurila Panssarimaali simply and easily acquires the desired shade, perfectly applied to the surface.
Volume — 9 l
Price - 8066 rubles.
Manufacturer - Finland
Brand – Tikkurila
Flaws:
Alkyd paint for metal surfaces, thanks to its special formula, has excellent adhesion to steel, galvanized or aluminum surfaces. When applied, no additional primer is required.
Volume - 0.9 l
Price - 1089 rubles.
Volume 2.7 l
Price - 2,600 rubles.
Volume - 9 l
Price - 8 600 rubles.
Acrylic paint for roofing of various materials. The special formula of the paint coating makes the coating resistant to external factors (ultraviolet, water and wind).With proper preparatory work, the roof does not crack after painting, the paint does not crumble, there is no peeling. Over time, the coating does not lose color, sufficiently resistant to fungus and mold.
Volume - 19 l
Price - 22 000
Country of manufacture - USA
Roofing acrylic paint is an ideal coating for slate and shingles. This product protects against the influence of atmospheric factors, is characterized by high hiding power and light fastness. This type of coating allows water vapor to pass through, does not allow the appearance of fungus, algae and lichen.
Volume - 12 kg
Price - 4300 rubles.
Water-based acrylic roofing paint for painting slate or mineral roofs.
Volume - 11.5 kg
Price - 2310 rubles.
An excellent option for painting metal surfaces, it has an interesting hammer effect, with a matte finish. Suitable for both indoor and outdoor work.
Volume - 750 ml
Price - 550 rubles.
Rubber coating for painting roofs, suitable for processing plinths and facades, hangars and facades made of steel, slate, tiles, concrete surfaces.
Volume - 14 kg
Price - 1700 rubles.
Primer-enamel for galvanized roofs, with anti-corrosion effect. It has a matte sheen and at the same time combines anti-corrosion primer and resistant enamel.
Volume - 12.5 kg
Price - 4500 rubles.
Special coating for metal surfaces, which includes special anti-corrosion components. Wear-resistant and durable enamel.
Volume - 20 l
Price 3700 rub.
Timely maintenance of the roof of a house or cottage, repair, painting - all this will ensure its normal operation. Therefore, it is important to choose the right type of paint for such work, no doubt the tips in the article will help you choose coatings for any surface, take into account all the advantages and disadvantages.