When working with facing bricks, every detail matters. Stains occur easily, but incorrect cleaning can permanently damage the brick. Keep the facade in top condition by following these 4 rules:

  1. Prevention is better than cure

Working tidily prevents irreparable damage to the facade.

  • Collect mortar: Use a mortar board or place a sheet under the working area to catch falling mortar.
  • Check the weather: Do not lay bricks during rain or strong winds. Blowing mortar or driving rain will adhere directly to the facade.
  • Store cleanly: Ensure pallets are placed on a firm surface and do not sink into the ground. Bricks must never come into direct contact with the soil or splashing dirt. Cover opened pallets immediately to protect them from dirt and rain.
  • Cut wisely: Never cut bricks near a facade or open pallets. When using water-cooled saws, always use clean water (preferably fresh rainwater) or opt for dry cutting with dust extraction.

Correct processing of the facing bricks significantly reduces the risk of heavy soiling and mortar residues. Want to ensure a flawless result? Read our comprehensive article with all processing guidelines and specific instructions per brick type here.

  1. Stay away from wet mortar residues!

This is the most important rule: never use a wet sponge to remove mortar residues. This pushes cement water deep into the pores of the brick, causing an irreparable grey haze (cement film).

  • Large mortar residues: Carefully flick them away with a trowel without smearing.
  • Small mortar residues: Allow them to 'set' until they are dry and crumbly. Only then brush them away dry with a soft brush.

  1. Prohibited methods: Hydrochloric acid and high pressure

Some cleaning methods ruin a facade immediately and permanently.

  • Hydrochloric acid: Never use this. It eats away the mineral top layer and causes permanent discolouration and damage.
  • High-pressure cleaner: Never use this. The force of the jet removes the sand coating of the brick, damages the surface, and destroys the joints.
  • Cement film remover: Never use this on fresh masonry. It should only be used on a fully cured and dry wall. Always contact us first for specific advice on the correct products.

  1. Protecting the facade

Allow the masonry time to dry safely and protect it from contamination.

  • Covering: Cover the wall at the end of the day to protect it from rain. Ensure the wall can still 'breathe' (do not seal airtight).
  • Keep it clean: Protect the lower courses of the masonry from splashing dirt or muddy water. This is important not only during curing but throughout the entire construction period and the lifespan of the building.