Showing results 1-12 of 29

Rust stains on concrete/concrete block foundation walls

  • Poor quality concrete absorbing water that rusts the reinforcing, which in turns causes the concrete to spall or crack, allowing in more water 

    How to repair

  • The reinforcing was installed too close to the outer surface of the concrete

    How to repair

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Concrete/concrete block – stains

Concrete/concrete block – flaking paint

Lightweight aerated concrete panels/blocks – chalking paint

  • Weathering, UV light exposure – chalking will be more visible with darker colours

    How to repair

Lightweight aerated concrete panels/blocks – fading paint

  • Weathering UV light exposure – darker colours are more prone to fading 

    How to repair

Lightweight aerated concrete – peeling or flaking paint

Lightweight aerated concrete – bubbling or blistering paint

Lightweight aerated concrete – paint failure at base of walls

Cavity brick or concrete block veneer – efflorescence

  • Moisture in the bricks causing salts to migrate to the surface leaving a whitish-grey residue

    How to repair

Cavity brick or concrete block veneer – crumbling mortar