Construction soils, including concrete and mortar, should be removed as soon as possible. The exact procedure for cleaning will vary depending on the nature and degree of soil.
Try to restrict cleaning to mild weather. Cleaning should be done on the shaded side of the building or ideally on a mild, cloudy day.
When choosing a cleaning solution and method, take other building components into consideration (like glass, sealants and painted surfaces). If necessary, apply prevention masking materials, such as protection tape or pealable coatings, to aluminium, hardware and glass.
Over cleaning or excessive rubbing can do more harm than good.
Strong solvents or strong cleaner concentrations can cause damage to painted surfaces.
Avoid abrasive* cleaners. Do not use household cleaners that contain abrasives on painted surfaces.
Abrasive materials such as steel wool, abrasive brushes, etc., can wear and harm finish.
Avoid drips and splashes. Remove run downs as quickly as possible.
Avoid temperature extremes. Heat accelerates chemical reactions and may evaporate water from solution. Extremely low temperatures may give poor cleaning effects. Cleaning under adverse conditions may result in streaking or staining. Ideally, cleaning should be done in shade at moderate temperature.
Do not substitute a heavy duty cleaner for frequently used mild cleaner.
Do not scour* painted surfaces.
Never use paint removers, aggressive alkaline, acid or abrasive cleaners. Do not use trisodium phosphate, highly alkaline or highly acidic cleaners. Always do a surface test.
Follow manufacturers’ recommendations for mixing and diluting cleaners. Never mix cleaners.
To prevent marking and scratches, make sure cleaning sponges and cloths are grit* free.