Views: 9 Author: Site Editor Publish Time: 2016-05-31 Origin: Site
CONDUCT AN EXTERIOR SURVEY
To prevent dirt and pollutants from entering buildings, experts agree that an exterior analysis is needed first. The exterior environment of each building will vary, but in order to ensure the maximum protection of tenants and building interior, a good understanding of exterior conditions, sources of pollutants, and situations that cause pollutions is needed.
At a minimum, this can be accomplished by conducting an exterior survey and recording findings. Examine weather conditions, roads, walkways, trees and shrubbery, and surfaces that may be inadequately drained. In addition, look at sources of pollution and damage that might result from pigeons, birds, fountains, decorative ponds, and trash. Use your finding as input into a master strategy to keep the enemy dirt out of your building.
HAVE A GOOD DEFENSIVE SYSTEM
As people begin to approach buildings, a first line of defense (before the entrance mat) is the textured stone or brick walkway where excess dirt starts to be scraped off shoes. Many building have these and this is preferable to smooth surfaces. It is advisable to keep this area well cleaned of debris, dirt, and dust that can accumulate and end up on the mat or in the building. This can be accomplished by sweeping and by using a water hose.
The main shield of defense is the front entrance mat. Expert opinion says that the ideal mat system should have a 15' outside mat, and a 10' "inside the door" mat. The first mat scrapes off the heavy dirt, mud, and moisture; the second mat captures remaining soils and dries shoes. Ideally, a person should be able to take four steps on each mat to ensure maximum capture of dirt and dust on shoes. If there is a vestibule between the main entry door and the interior, a smaller mat is necessary. It is estimated that a good entrance mat system captures up to 90% of all tracked in dirt. This means a 15′ entrance mat should be capable of trapping 30% of the incoming soil within the first three feet, and 90% within 15 feet. This type of heavy duty cleaning means that front entrance mats need to be frequently cleaned. In addition, the floor area just inside the building is more likely to be soiled than other areas and needs to be especially targeted for frequent cleaning.
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