brick waterproofing

What is Brick Waterproofing?

Brick Waterproofing: Preserving Structural Integrity and Aesthetics

Brick is one of the oldest building materials, renowned for its durability, timeless appeal, and natural aesthetics. Throughout history, it has adorned architectural masterpieces and stood the test of time. However, despite its advantages, bricks are inherently porous and vulnerable to water infiltration; these factors can lead to structural damage and aesthetic degradation. Brick waterproofing is a crucial and time-consuming process that aims to protect and enhance the longevity of structures.

Understanding Brick Porosity

Bricks are made from clay and shale fired at high temperatures to form a dense and porous material. The level of porosity varies among different brick types, with some being more permeable than others. Permeable bricks can absorb water like sponges, and when exposed to moisture sources such as rain, groundwater, or humidity, can get damage-prone or ruptured.

The Need for Brick Waterproofing

When water is absorbed by bricks, it weakens the material’s integrity and may lead to cracking, spalling (surface flaking), efflorescence (white salt deposits on the surface), and mold growth. In freeze-thaw conditions, water can freeze, expand, and create internal pressure. Over time, water-related issues can compromise the structural stability of buildings and necessitate costly repairs.

Additionally, water can carry dissolved salts and minerals. As the water evaporates from the brick’s surface, these elements are left behind, leading to efflorescence. This mars the appearance of the bricks and exacerbates the water absorption issue by creating more porous spots on the surface.

Curtailed construction costs and long-term durability are pivotal factors for individuals and businessmen seeking a viable solution to issues like mortar deterioration and brick erosion. It is, therefore, essential to hire a renowned firm for waterproofing brick walls. Contact Lakhwa Chemical Services in this regard. Their experts can assess the problems with pertinence and acuity. Moreover, your work will be finalized in the scheduled time period.

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Brick Waterproofing Methods

Various techniques and products have been developed to waterproof brick structures effectively. Some common methods include:

Sealants and Water Repellents

Silane, siloxane, and silicone-based sealants are applied to form a hydrophobic barrier. These materials penetrate the brick’s pores and reinforced it from within. The entire structure remains stable and breathable at the same time.

Elastomeric Coatings

Different tools, such as brushes or rollers are used on the brick surface, forming a protective barrier that can accommodate minor movements. Elastomeric coatings are ideal for moderate to heavy rain-affected areas.

Cementitious Waterproofing

Cementitious coating is an effective solution for brick structures. It involves the application of a cement-based mixture to restrict moisture ingress. It is used in parking areas, garages, tunnels, and underground canals.

Penetrating Sealers

These sealers penetrate the brick’s surface and create a strong bond to resist water entrainment. Penetrating sealers are suitable for preserving the natural appearance of the brick.

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Exterior Insulation and Finish Systems (EIFS)

EIFS is a multi-layered system that includes an insulation board and a water-resistant finish coat. This method offers excellent waterproofing capabilities. Moreover, it changes the brick’s appearance profoundly.

Repointing and Tuckpointing

Brick tuckpointing and repointing techniques are essential for brick waterproofing. Repointing involves the removal of old mortar, surface preparation, and application of new filling to ensure uniform weight distribution. Tuckpointing is similar to its predecessor. However, the only difference is the color applied on the newly installed mortar.

Importance of Brick Waterproofing

Brick waterproofing is a complex process that requires pertinent expertise and knowledge of materials and techniques. Proper surface preparation is essential for effective adhesion of the waterproofing materials. Professional contractors have the experience to assess the specific needs of a structure and select the most suitable waterproofing solution accordingly.


Brick waterproofing is a critical aspect of preserving the structural integrity and aesthetics of brick buildings. By protecting bricks from water infiltration, we can prevent damage, extend the lifespan of the structure, and maintain its beauty over time. Whether for historical landmarks or modern constructions, brick waterproofing plays a vital role in ensuring the longevity and appeal of brick-built structures for generations to come.

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