Appendix L
Maintenance Level Guidelines
Replenish joint aggregate material to “lip” of paver Complete restoration of the joint aggregate material (using a vacuum sweeper) and replenish joint with cleaned or new aggregate material to “ lip” of paver approximately every 5 – 10 years Approved Maintenance Equipment: Hand held bristle broom: Sweep as needed to keep the surface clear of debris *joint aggregate material will remain in place while removing debris from paver surface Leaf Blower: Blow as needed to keep the surface clear of debris *joint aggregate material will remain in place while removing debris from paver surface Rotary Brush (poly bristles only): Flips debris from joint *will require slight refilling of the joint aggregate material Power washer: Spray at a 30 degree angle approximately 18 to 24 inches from the surface *will evacuate joint material, replenish removed joint aggregate material Use CA-16 washed for aggregate material. Fill close to the surface though not completely full Winter Maintenance and De-icing: Always use a plastic snow shovel Fit snow blowers with plastic shoes on the adjustable gliders and on the scoop edge Always us a plastic or rubber tip on the snow plows Do not use magnesium chloride Do not use sand Sodium chloride (common rock salt) is the most popular de-icing salt. It is widely available and it will melt snow and ice at temperatures down to approximately 16° F. Below 16° F, rock salt stops melting snow and ice. Sodium chloride can damage adjacent grass, plants and metal. Apply with caution and use as sparingly as possible. Calcium chloride is another de-icing salt. It generally looks like small, white, round pellets. It will melt snow down to about 0° F. It can irritate skin. Studies indicate that depending on the concentration, calcium chloride is less damaging to grass than sodium chloride is. Heavy concentrations of calcium chloride can chemically attack concrete. Potassium chloride is a de-icing salt available in some markets. It will not hurt skin or damage plants. However, it melts ice only when the air temperature is above 15° F.
Restorative Maintenance:
Common Maintenance Issues: Slow drainage/ponding – surface should drain immediately
o Completely remove all of the joint material and reestablish new material to renew infiltration
Surface Crusting
o Check for sediment running off onto pavers o Increase cleaning frequency in troubled areas o Remove debris immediately
Weeds
o Remove weeds immediately
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414 Naperville Park District | 2023 MASTER PLAN
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