Efflorescence on the facade of a building made of facing brick
Many people are faced with the fact that during the operation of a building or structure under the influence of natural precipitation
the facade may appear efflorescence. Efflorescence is a white coating on the exterior walls of a building made of facing brick.
The efflorescence itself is a common occurrence consisting in the natural “evaporation” of water-soluble salts contained in brick and mortar.
Thanks to the capillary movement, moisture evaporates, dissolves and simultaneously carries salts that crystallize at the exit points
on the walls in the form of untidy white spots.
Having appeared once, efflorescences themselves will not disappear. Disfiguring the appearance of the building, they will gradually destroy the surface of the facing brick.
The reason for the appearance of efflorescence is an excess of moisture in the brick itself. Unprotected brick absorbs moisture, which, freezing in the autumn-winter period,
tearing apart a brick from the inside. Therefore, efflorescence “signals” the need for protective measures: checking the roof, drains, window sills, cornices and waterproofing.
Efflorescence is a solvable problem and this phenomenon can be fought if it has already manifested itself, but it can also be prevented by saving yourself from
headache for several years to come.
To avoid efflorescence on the brick, you must adhere to the following rules:
– moisture from the drainage system must not fall on the walls of buildings;
– Avoid excessive wetting of unprotected masonry with precipitation (it is not recommended to brick the building in rainy weather);
– Do not over-wet the brick artificially and do not introduce “excess” water into the masonry mortar;
– water for the preparation of a mortar for masonry should be clean, without salts and other harmful inclusions
– use Portland cement without additives M500 D0 for the preparation of masonry mortar.
To remove efflorescences from a brick, several operations must be performed:
Firstly, places with efflorescence must be treated with a special wash to remove salts. Plain water will not help here, as it is absorbed into the brick,
causing the dissolution of salts inside the brick and their crystallization out. We recommend a wash:
The duration of the drug is indicated in the instructions. Residues are washed off with water under pressure (from a hose or pressure washer).
Then follows the drying of the wall and its subsequent hydrophobization – creating a waterproof surface by impregnation with a water repellent.
After processing, the wall surface acquires new qualities: – It becomes completely invulnerable to rains, water simply drains from it.
the strength of the brick. – The walls constantly look clean – the dust settles less and is easily washed off by the rain. – Exit of salt to the surface outside and inside the house
excluded – water repellent, while maintaining the vapor permeability of the walls, blocks the movement of salts. Heights can appear on your facade at any time and at any
location, but modern drugs will help you get rid of this phenomenon and keep the front of your building in perfect condition.