Tuck pointing is necessary for several reasons, primarily related to the maintenance and longevity of brick or stone masonry. Here are some key reasons:

1. Preventing Water Damage

• Over time, the mortar between bricks or stones can deteriorate due to exposure to weather, moisture, and wear. When mortar joints break down, water can seep into the structure, leading to potential water damage, which can cause further weakening, rusting of reinforcements, and mold growth.

2. Improving Structural Integrity

• Mortar serves as the "glue" holding the bricks or stones together. When mortar joints fail, the integrity of the entire wall or building can be compromised. Tuck pointing helps restore that strength and stability by filling in damaged joints, which ensures the structure remains intact and secure.

3. Aesthetic Restoration

• Over time, weathering and erosion can cause the appearance of masonry to degrade, leaving it looking worn or uneven. Tuck pointing restores the uniformity and neatness of the joints, improving the overall aesthetic appeal of the structure. This is especially important for historic buildings or when maintaining the character of a property.

4. Preventing Further Deterioration

• If damaged mortar is left untreated, it can continue to break down and lead to bigger issues like cracks in the bricks, increased erosion, and even foundation issues. Tuck pointing helps to slow down and prevent this progression by replacing the compromised mortar.

5. Maintaining Energy Efficiency

• Gaps or cracks in the mortar joints can lead to air leaks, which can affect the energy efficiency of a building. Tuck pointing can help seal these gaps, ensuring that the building remains more energy-efficient by preventing drafts and moisture infiltration.

6. Preserving Historical Value

• For older buildings, especially heritage or historical structures, tuck pointing is an essential preservation technique. It allows for the repair and restoration of the masonry while maintaining the building's original aesthetic, ensuring that it can last for generations.

In short, tuck pointing is a preventative and corrective measure that extends the life of masonry structures, both by improving their functionality and preserving their appearance.