Effective facades cleaning – from plaster to metal
Maintaining the exterior of a building helps retain or increase its value. Various methods are available to clear dirt from facades, but the surface should be taken into consideration when applying the respective technology. This is essential for avoiding damage.
The standard: Cleaning with hot water and steam
Facades are the flagships of buildings. Often they are large, complicated surfaces made of different materials. Exposed to external environmental influences for years, dirt can settle and accelerate weathering in different ways.
Hot water pressure washers have proven to be effective, economical tools for facade cleaning due to their high cleaning performance by low water consumption. Pressure washer trailers make it easier for building exterior cleaning since they allow for flexibility when an electricity or water network is not within reach.
The advantages of hot water pressure washers compared to cold water pressure washers are based on two aspects:
A preliminary test is wise:
Choose the right technology, avoid damage.
No matter which facade material you are cleaning – in order to select the correct technology, a sample area should be tested extensively beforehand. Is the facade sensitive to acids? Does it absorb water? Which cleaning detergent achieves the desired effect in which concentration and time? Those who proceed carefully in advance achieve the desired result and avoid loss of substance or other permanent damage due to the incorrect cleaning detergent.
It's all about the material: Cleaning of different facade types
Enhanced effect due to cleaning detergents
A cleaning detergent can further enhance the effect of a pressure washer if required. The so-called two-step method is recommended in the application. Here, the cleaning detergent is applied first, and then it is washed off at high pressure after the application time. However, when selecting the cleaning detergent, both the quality of the surface and the statutory provisions should be observed.
Know what's right:
Requirements and regulations.
Facade cleaning always takes place in the public arena, meaning it is important to obtain information about the requirements and regulations which vary from place to place and from country to country. Wastewater discharge is subject to approval in each case. If it is only dirty water, the water can be discharged after filtration. The solid materials collected must be disposed of. If a cleaning detergent was used, the water must be collected, filtered and neutralized. Also, with regard to the use of spray detergents, the occurrence of dust, noise or exhaust gas, the corresponding regulations must be observed.
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