Clean roof tiles - note different materials!

Clean roof tiles - note different materials!

Most homeowners climb onto the roof in the spring. Because the spring cleaning does not stop in front of the roof tiles, which might not look nice due to moss and algae. But when cleaning roof tiles, it is important to note the material. In most cases, muscle power and brooms perform better than cleaning machines.

Reasons to Clean Roof Tiles

What gleamed in new-build shining red might be greenish just a few years later. Roof tiles are not immune to mosses and algae - especially the north side is often attacked after some time. Although these substances do not damage the roof, they can become very unsightly. Therefore, many homeowners climb the roof to clean the pans.

Another reason for cleaning roof tiles is the weather conditions. Rain, snow and hail like to set the roof tiles and make them look spotty and ugly. These conditions can not withstand the roof permanently. Bird droppings and the burning sunlight do the rest.

In addition, the cleaning measure is also suitable for detecting damage to the roof tiles in good time. If moisture penetrates the pans, this can lead to mold and dry rot undetected. Therefore, a combined roof inspection during cleaning usually pays off.

Caution: Avoid damage during cleaning

While lichens, moss and algae do not really harm the roof, this can lead to improper cleaning. Therefore, the handyman should make this only if he knows his way around the roof tiles very well. In all other cases, it is advisable to invest your money in an expert - so you do not have to pay for an expensive new roof later.

Improper cleaning can damage the roof tiles. The sealing of the roof tiles can also be disturbed. Likewise, water can penetrate through the roof. In addition, the owner should also carefully check the item warranty.

Attention: different materials

Roof tiles can be made of different materials, which is also crucial for proper cleaning. The following stock options are available:

  • Clay
  • Concrete
  • Plastic
  • Metal

The well-known roof tile is made of clay - a traditional product that is close to nature. Roof tiles are often glazed. The glaze prevents ingress of moisture, so that cleaning can usually be tackled more safely. However, algae, moss and lichens are rarely exposed to tiles because of the glaze.

Roofstones, on the other hand, are made from concrete that is produced in mass production. They are usually open-pored and rough, coated with granules slightly sandy. This coating loses its hold over the years, making the concrete pans vulnerable to dirt and co. Also, concrete blocks often become spotty.

But also plastic variants can be found on some roofs, such as on gazebos and carports. You can score with their light weight. They also have a water-repellent surface, which also makes moss and algae difficult.

The last variant - metal roof tiles - is also among the lightweights. A special coating prevents corrosion, rainwater penetration is prevented by the corrugated shape.

Roofing materials.

The high-pressure cleaner is one of many lists that deals with the cleaning of roof tiles. But he is often controversial and some experts point out that it could also cause many damage. He exerts too much pressure. Especially with the lightweights under the roof tiles, the high-pressure cleaner can cause unintentional damage - roof tiles made of plastic and metal should generally not be cleaned with it. In addition, the heavy equipment often can not be placed on the lightweight roofs. With bricks and concrete the employment is rather possible - but also here the owner should inform himself beforehand exactly.

Anyone who is unsure whether the high-pressure cleaner is suitable for his roof should ask the specialist. In case of doubt, the roof pro knows exactly which cleaning measures are the right one.

The list of tools and materials also includes:

  • Brooms
  • Scrubbers / Brushes
  • Hot Water
  • Moss Removers

Numerous experts advise against the use of chemical aids. Muscle strength and warm water are better for the roof and less harmful to the environment. In some cases, however, the use of lichen and moss remover is necessary. Pay attention to the composition of the remover. Many products are made of renewable raw materials and therefore environmentally friendly.

The handle in the home remedies box can also help. Cola, for example, helps to remove moss. The contained phosphoric acid acts against the green infestation, but does not attack clay, metal, plastic and concrete. Stains are also not left behind by the shower.

Cleaning roof tiles - the procedure

Those who decide against a specialist and want to climb the roof themselves should not forget at the beginning: safety. Preventive measures include a sturdy frame, a sturdy ladder - but better a lift - a round security for the roof and sufficient self-security by ropes and Co. Non-slip footwear and work clothes are also a must.

If everything is safe, cleaning can to be started on the roof. Since the high-pressure cleaner is not suitable for all roof tiles, the manual cleaning should be described here.

In the first step, a rough cleaning is carried out. With brush, scrubber and / or broom the dirt is loosened and first parts removed. In the second step, the warm water is used, which is given from top to bottom over the roof tiles. The scrubber is also used here. Some dirt must first soak a little, so it is advisable to repeat this procedure several times. In the last step, any dirt should be scrubbed and swept off the roof.

Do not forget the gutter! For cleaning also includes the liberation of the gutter of debris that land not least through the roof cleaning in her. Otherwise a blockage is imminent.

Some particles dissolve only after a while, so it is advisable to climb the roof a few days later with the broom to remove it. Otherwise, they would also clog the gutter.


Roof tiles are sturdily built for longevity. Nevertheless, moss, algae and lichens can settle on them. Therefore, it is sometimes necessary to perform a cleaning - which is a purely cosmetic measure. It should be noted, from which materials the roof tiles are made: bricks are made of clay, stones made of concrete and plastic and metal variants are possible. The specialist knows exactly which cleaning does not cause damage.

Artikelbild: © smuay /