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            Cleaning Houses, Roofs, an Lo-Rise Buildings
            
            
        
        This class explains the most common service offered 
by contractors in terms of the physical substrate, the 
surface, and the typical soils that must be removed. 
We examine different substrates and surfaces that 
commonly need to be cleaned, the typical soils we 
can encounter, the various choices for cleaners, the 
most common tools employed, and the techniques for 
getting off the job as quickly as possible. 
Who should take this class?: Beginners to 
experienced contractors who do residential or 
commercial work. This is an excellent add-on service 
for painters, landscapers, and general PW 
contractors.   
Why take the class?: This is a 1-day course, 
usually 4-6 hours long depending on class size. 
Teaches you the 
vocabulary terms of the industry, introduces the 
chemistry important to getting good results, and 
emphasizes how the choice of tools and cleaners 
determine profitability (or lack of). This course does 
not touch on hi-rise work, which requires extensive 
safety equipment. This course does not address 
specialty surfaces like limestone and marble. It does 
focus on typical house surfaces and typical storefront 
surfaces.
Tuition: The tuition for this course is 
$399, and 
this amount includes the manual (a $39.95 value). 
PWNA members are entitled to a $25 discount off this 
rate. 
This class is available several times each year at the 
Alliance campuses in Maryland, Georgia and New 
Jersey. It is always featured at the PWNA Convention 
and any PWNA Technical Weekends.