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Friday, August 01, 2014

Question

I would like to know the time standards for stripping and finishing floors, and for top scrubbing floors, and a time standard breakdown of the entire floor care procedure. What the best practice to figure how many sq. ft. can be done in a day?


Answer

The ISSA 447 Times booklet gives “standard” times for these operations, but these must be used with caution. For example, the strip production rate for a 17” rotary and wet vac pickup is around 750 sq. ft. per hour. However, excessive buildup of finish requiring a second stripper application, more dwell time, another agitation, and another pickup will double the suggested time spent and drop the production to 375 sq. ft. per hour or less.
And stripping is not just putting down solution and removing the loosened finish. The area must be first cleared of as much furniture as possible and the floor must be swept or vacuumed to remove grit and dust. Then, there is the matter of drying times which vary due to humidity levels and air movement restrictions. Rinse and initial drying times can vary. Use your ISSA guide, but don’t forget the variables.
How many sq. ft. can be done in a day depends on how long your day is. The above figure results in 6000 sq. ft. of stripping only in an 8-hour work day. However, adding people to the crew and adding more crews and/or more work hours will increase the area you can handle. It is not uncommon for the area to determine the hours rather than the other way around. If you have to get 12,000 sq. ft. stripped and refinished in a weekend, you use whatever it takes to get the job done. It may mean 12 hour work periods or three crews.
The best way of knowing any production rate is to time your people in a real life setting. Different finish applicators have differing production rates. Some people wet vac faster than others. Some water sources are closer to the work site than in other buildings. Variables are always a concern.
Lynn E. Krafft, ICAN/ATEX Associate Editor
lekrafft@juno.com