Well established buildings may, over a period of time, develop waterproofing issues or simply require re-pointing. The following information is designed for practical advice in three situations:

Lintel Repair  Crack Repair  Weather Protection

LINTEL REPAIR

When surface cracks appear in lintels, most likely water has penetrated the concrete getting to the metal reinforcing, resulting in rust which expands and opens the concrete. Obviously if the rust continues it ‘explodes’ the concrete. Treatment is a bid like surgery, remove the damaged concrete around the reinforcing, treat the metal to limit further rust, then re-constitute the lintel. The process will vary depending on water present and the depth of damage to the lintel.

Decorative options include painting over wall areas with Classique Low Sheen to a colour of choice.

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Reference information:

Restoring Damage Lintels

CRACK REPAIR

Concrete crack repairs can require a waterproofing solution or an improvement to structural integrity and aesthetics. With building movement walls often develop cracks. Treatment varies from the negative side waterproofing, to positive structural improvement. Most jobs can be solved with mechanical chasing of the crack to broaden the surface area for treatment product. More complicated jobs may require injection treatment.

Decorative options include painting over floor areas with Decracoat and walls with Classique Low Sheen to a colour of choice.

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WEATHER PROTECTION

Some buildings experience constant weathering on particular external walls and the building material (brick, block, concrete) is absorbing moisture. The two most common solutions is to either apply a waterproofing membrane (tank) the wall, or apply a clear water repellent.

Decorative options include painting over the membrane with Classique Low Sheen to a colour of choice.

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