By Martha Green


Window cleaning can also be called window washing. The history of commercial window cleaning is a long one and has been modified severally to what it is now. Automation seems to be taking over as inventions are coming up that are allowing the accomplishment of tasks that previously used to be done by humans. In developed countries, automatic robotic cleaners are becoming more common.

Washing of windows used to be a manual process accomplished by hands and simple tools. This may be attributed to the fact that most buildings used to have fewer windows and they did not rise to the heights they do today. However, as time proceeded, there was need to invent better methods as high rise windows became more common in buildings. Various washing and access methods were therefore devised.

Water containing dissolved detergents is used to wipe dust from panes in manual applications. Hands are used to scrub dirt off. Water mixture and scrubbed dirt are sluiced from panes using squeegees of various types. Provided the cleaner gains access to the pane, they can use manual methods to clean any kind of window.

Water-fed poles came into existence so that cleaners can be able to clean windows that are 3 feet above the ground and below 70 feet. A brush and water jets are mounted onto a telescopic pole. The jets supply deionized water from sources such as commercial, domestic, and vehicle-borne water outlets. The water contains a concentration of less than 5 ppm of total dissolved solids. The lengths of poles vary with 70 feet being the longest.

Dirt agitation is done while water is sprinkled constantly. Usually two jets exist are installed on the pole. One of the jets delivers pure water and the other jet delivers water mixed with cleaning detergents. Pure water is applied to the pane after dirt agitation has been complete. Pure water does a good job at removing dirt and never leaves any spots of dirt behind. This makes it an effective method.

At heights beyond 70 feet, other access methods have been invented. Such methods include ladders, supported scaffolding, aerial work platforms, cradle access, rope access, and windowsill access among others. All these methods deliver the cleaner to the pane they need to clean. Each method is suitable in specific situations although others can be applied in more than one situation.

TA thorough assessment of the building is done first before a given technique is settled upon for use. Where necessary, several access methods may be applied at the same time. Minimization of accidents has been the goal of most companies as authorities require them to apply the safest methods. Generally, there has been a decrease in accidents.

Environmental safety is also of great concern in this industry. Companies are required by authorities to use washing methods and products that minimize damage done to the environment and the cleaners. To this end, several products have been invented, which are more eco-friendly.




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