Due to the hardness of granite and the surfaces resistance to soiling, generally little maintenance is required. A cleaning regimen is suggested to remove build-up of dirt and to maintain the appearance of the paver/stone.
Like all stonework, granite is generally best cleaned using warm water and a mild detergent on a regular basis in ensure aesthetics and product longevity.
Stone can be sealed at the outset, to help prevent immediate dirt ingress and facilitate future cleaning. Granite is no different. As durable as it is, granite is not ‘self-cleaning’.
Once sealed correctly, granite requires minimal ongoing maintenance, other than a good cleaning as per cleaning and maintenance schedule.
The service of a competent pressure cleaning and sealing company familiar and experienced with cleaning and maintaining natural stone is always an advantage. Take care not to remove grout or joint filling material.
Allowing any soiling on the stone surface to be baked on in direct sunlight for weeks at a time, makes stain removal more difficult.
The cleaning frequency and methodology will vary depending on surface finish, volume of traffic, dirt accumulation and appearance requirements, and is therefore best trialed and set to suit the particular situation.
For large areas, it is advisable to use a commercial floor scrubber or ride-on cleaning machine. Where ride on cleaning machines are employed, these are generally more effective, when used in conjunction with heavy duty detergent hot water application. A high traffic pedestrian mall would typically be scrubbed and washed down approx. every 3-4 weeks by a ride-on machine.
Spot cleaning can be done when needed, using neat detergent, bleach, or in extreme circumstances, diluted (30:1) hydrochloric acid.
Note Paving should be thoroughly wet down before any acid is applied
Note If unsure of the stone and its reaction to acid -test a small area prior to commencement of work to check that the particular stone will not be adversely affected by acid.
• Re-exfoliate on site when required to maintain slip resistance (in extreme cases)
• Replace broken pavers
• Reinstate paving after works that require footpath surface to be opened
• Use matching stones for replacement
||A white or yellow deposit of salts
which may occur after rain. It can
come from the paver or the soils under
|Can be removed by placing coarse &
salt free sand on surface, stiff brushing.
||This is a common problem usually
found in damp and shady places.
|Vigorous brushing when dry will
emove this. There are many products
in the market for this purpose, use
accordingly to manufacturers
|Food stains and tyre marks
||It is recommended that any spills
be treated immediately. The use of a
neutral cleaner and scrubbing should
have the desired effect.There are many
products in the market for this purpose,
use accordingly to manufacturers
|Dirt and grime
||This may be cleaned by frequent
sweeping and occasional hosing
Exfoliated or Sawn Finished Granite
External granite paving should be cleaned on a regular basis either fortnightly or monthly clean using high pressured water. Take care not to remove grout or joint filling material when using high pressure water.
External granite paving can benefit from a mild acid wash on an as-needs basis to remove any dirt build up by using a diluted hydrochloric acid mix: 1 part hydrochloride acid to 30 parts water applied using a stiff bristled broom. Wash off within a couple of minutes with a further rinse 10-15 minutes later. Take care when using hydrochloric acid, use safe work practices and provide appropriate ventilation and avoid damage to glass or other fittings from acid and avoid use where polyurethane/silicone jointing exist. Acid washing treatments should be professionally applied.
For internal exfoliated granite paving, wash with mild detergent followed by clean water. Mop down surface once or twice per week with regular vacuuming.
• Rough finishes will not repel contaminates such as coffee or wine like a polished finish will and can result in the surface absorbing the substance leaving a stain.
• In an outdoor environment, pressure spraying with detergent is suggested to remove stains.
• In an interior environment, generally the only solution is hand washing with detergent.
• For stubborn stains, cleaning using a poultice or complete replacement (of unit or units) may be the only practical solution.
• NB! At all times test the cleaning method in a remote area first.
A wash with mild detergent followed by clean water will suffice in foyers and lift lobby areas. For internal polished and honed granite paving, mop down surfaces daily with a suitable detergent which doesn’t require excessive rinsing off to stop build up and yellowing.
• Don’t use abrasive cleaning products such as scouring pads as they may scratch the surface if used vigorously Back to top
• Avoid using silicone based cleaning pads as they may leave a coating making the surface impermeable for further cleaning.
• NB! At all times test the cleaning method in a remote area first