Any homeowner may encounter unwanted green growth on the roof. This is a natural cycle that can significantly change the aesthetic appearance of a residence. Most often, the greening process is caused by two factors that correlate together – persistent moisture, lack of adequate air circulation. A proliferating flora of algae, lichen and moss can appear on any roof, especially on porous materials, i.e. concrete or ceramic tiles. So what steps should be taken to clean the roof and protect the house from green infestation?
Why and after what time does the roof turn green?
Above, information on what factors affect the greening of roofs was initially provided. However, the matter is more extensive and complicated. Lichens and algae are most often deposited in shaded areas, and roofs located in the north. The deposition of algae and lichen is favored by a humid climate, and houses that are located in forests or near bodies of water are most vulnerable to green growth. In addition, if the roof is made of cement tiles, has a rough and irregular surface, in this case, these factors promote faster growth of moss. It is worth noting that green algae can also appear on a high-quality house cover. The speed of the appearance of algae depends primarily on humidity. Houses that are located in sunny and dry areas are much less prone to greening of the roof.
How to prevent green infestation?
New roofs, especially those covered with glazed, unpainted tiles and those in unfavorable conditions, are recommended to be treated with specialized chemicals. Before starting this process, the surface should be thoroughly cleaned and a suitable impregnant applied. Preferably silicone, which will protect the roof from moisture and fading. Another possible way to prevent algae and lichen on the roof is to install so-called copper fittings. Why? Because copper reacts with moisture, producing copper ions that dissolve in water. Thanks to the occurring reaction of copper with water, the microflora that appears due to moisture is destroyed, and the whole process prevents further growth of microorganisms. It is worth noting that the method using copper fittings does not require prior cleaning of the roof.
How to clean and protect the roof?
Once the roof has been covered with green growth, it is necessary to thoroughly wash and remove the mosses and lichens that are on the surface. The basic tools that can be used for this are a pressure washer and a wire brush. Note that not every surface is suitable for such cleaning. If the roof is covered with sheet metal, it should be cleaned regularly with a soft brush and pressurized water. Strong detergents or chemicals should not be used with this type of surface. Doing it yourself can cause damage to the roof surface or later problems during waterproofing. For this type of work, it is worth referring to professionals who will perform the cleaning process professionally and reliably. Rs-mal company comprehensively provides such services, using equipment that is proven from reputable manufacturers. The company will choose the right cleaning method and means so that the roof is thoroughly protected.
How often to clean the roof?
The frequency of cleaning the roof depends on whether it was impregnated earlier, at installation, and where it is located. It is assumed that in the absence of prior application of impregnation, or copper fittings, green growth that appears should be removed systematically from the surface. If the roof is covered with clay tiles mosses, algae and lichen should be removed after about 7 years. In the case of engobed ceramic tiles and painted cement tiles, this process should be carried out after about 10 years after the previous cleaning. After 15 years, green residue is removed from painted painted and glazed tiles.
Roof cleaning and painting services – Lesser Poland
The previously mentioned Rs-mal company provides cleaning and painting services for roofs in Lesser Poland province. After the entire process of cleaning roof tiles with the selection of the appropriate method, the company can also refresh the roof with professional painting. Many surfaces through long-established moss, algae or lichen lose their original color and fade. If you need to take advantage of comprehensive cleaning and refreshing of the roof, you can check out the offer of a particular company Rs-mal.
