Historic Preservation - Technical Procedures |
 Spectitle: | Standard Job Times For Miscellaneous Maintenance Tasks |
Procedure code: | 0180002S |
Source: | Cyclical Maintenance For Historic Buildings - J. H. Chambers |
Division: | General Requirements |
Section: | Maintenance |
Last Modified: | 02/24/2012 |
Details: | Standard Job Times For Miscellaneous Maintenance Tasks STANDARD JOB TIMES FOR MISCELLANEOUS MAINTENANCE TASKS From the publication "Cyclical Maintenance for Historic Buildings", by J. Henry Chambers, AIA, National Park Service - Office of Archeology and Historic Preservation, 1976. This standard includes a list of miscellaneous maintenance tasks along with estimated performance times required for completing each task. These figures may be used to estimate the amount of time required to perform a group of tasks; however, they are based on estimations for commercial and industrial structures and may need to be adjusted for applications in historic buildings. Therefore, local estimates should be adjusted based on observation and experience. Frequency of tasks should be analyzed prior to determining the total performance time for a group of tasks. Outside contractors should be employed when maintenance tasks require special skills, expensive equipment or tools and materials that are not readily available. These more complex tasks should be omitted from any calculations involving in-house employees. Results of these calculations may be used for planning purposes to calculate staff size which can be adjusted based on specific needs. Assume 2000 man-hours/year for the average full-time employee. Once the time required for performing a group of maintenance tasks has been calculated, staff size can be determined by dividing the maintenance time (in hours) by 2000 man-hours. CALCULATING WORK TIME UNITS Maintenance Task Time in Seconds DUSTING Ash Tray 15 Book Cases 13" x 35" x 12" 22 36" x 30" x 8" 33 42" x 24" x ll" 49 Cabinets 36" x 77" x 18" 106 30" x 66" x 18" 42 Chairs Large 63 Medium 35 Steno 22 Clock, Wall 20 Desks Large 48 Medium 43 Small 38 Doors Without glass 25 With glass 40 Fire Extinguishers 16 Lamps and Lights Table Lamp, Shade 35 Floor Lamp, Shade 35 Radiators and Window Ledge (124" x 15") 45 Sand Urns 60 Tables Large 60 Medium 35 Small 22 Vending Machine 60 Venetian Blinds (Standard) 210 Wastebaskets 15 MISCELLANEOUS Door (Washing) 150 Drinking Fountain (Cleaning) 90 (Large Divan) Vacuuming 190 LAVATORY ITEMS Commode With Partition (Cleaning) 180 Door (Spot Wash) 50 Door Latch 10 Mirrors (Cleaning) 25" x 49" 20 60" x 21" 20 88" x 31" 40 Napkin Dispenser (Loading or Replenishing) 13 Napkin (Disposal) 10 Paper Towel Dispenser (Loading or Replenishing) 7 Paper Towel (Disposal) 10 Shelving (Cleaning) 20" long 8 126" x 6" 60 Urinals - (Complete Cleaning) 120 Wainscoting (Cleaning) 75-100 Ft. Long 25 Wash Basin, Soap Detergent 120 (Cleaning or Replenishing) WALLS, CEILINGS AND GLASS Door (Wash both sides) 150 Glass part. (Clean, wash) per sq. ft. Wall, marble (Wash) per sq. ft. 5.5 Wall, tile (Wash) per sq. ft. 9 Glass part., opaque (Wash) per sq. ft. 3 Wall, painted (Wash) per sq. ft. 9 Wall (Vacuum) per sq. ft. 4.7 Windows (Wash) per sq. ft. 7.5 STANDARD JOB TIMES FOR FLOOR CLEANING OPERATIONS Floor Cleaning Operation Time in Minutes per 1,000 Sq. Ft. Sweeping Unobstructed 9 Slightly Obstructed 1 Obstructed 12 Heavily Obstructed 16 Dust Mopping Unobstructed 7 Slightly Obstructed 9 Obstructed 12 Heavily Obstructed 16 Damp Mopping Unobstructed 16 Slightly Obstructed 23 Obstructed 27 Heavily Obstructed 32 Wet Mop and Rinse Unobstructed 35 Slightly Obstructed 45 Obstructed 50 Heavily Obstructed 55 Hand Scrub Unobstructed 240 Slightly Obstructed 300 Obstructed 330 Heavily Obstructed 360 Hand-Scrub - Long Brush Unobstructed 75 Slightly Obstructed 105 Obstructed 120 Heavily Obstructed 135 Machine Scrub Unobstructed 25 Slightly Obstructed 35 Obstructed 40 Heavily Obstructed 45 Machine Polish Unobstructed 15 Slightly Obstructed 25 Obstructed 30 Heavily Obstructed 35 Vacuum - Wet Pick-Up Unobstructed 20 Slightly Obstructed 27 Obstructed 31 Heavily Obstructed 35 Vacuum - Dry Pick-Up Unobstructed 14 Slightly Obstructed 17 Obstructed 19 Heavily Obstructed 23 Strip and Rewax Unobstructed 100 Slightly Obstructed 120 Obstructed 140 Heavily Obstructed 180 Add additional time to the total work time determined for a group of tasks for room preparation (i.e. moving, stacking and returning furniture back to its original location) and for assembly, set-up and clean-up of equipment used. For sample time estimate forms and additional information relating to maintenance, see the publication "Cyclical Maintenance for Historic Buildings". END OF SECTION |
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