Efflorescence, crumbling concrete

When there is water in the woodwork or the concrete, the humidity dissolves the limestone salts contained in the concrete and carries them to the surface. When the humidity evaporates, the salts crystallise, leaving a white, granular deposit. The concrete finally crumbles; paint flakes and cracks can appear.

This humidity can be caused by a number of factors:

A poorly-functioning French drain, or lack thereof
Porous or poor-quality concrete
Insufficient or inappropriate drainage around the building
Humidity that rises towards the surface

The source of the humidity must be identified as the phenomenon will be amplified and could damage the areas of concrete affected and compromise your walls and foundations.

There are several solutions possible

Improve drainage by changing the fill
Inspect, repair or replace the French Drain
Dry and waterproof the foundations with a membrane
Repair cracks and faulty areas

A visit from a professional is crucial in order to identify the source of humidity.

Contact us, We will inspect the damage and offer you the appropriate solution for your situation.