The red brick exterior wall of the old house has certain historical precipitation and cultural value, but it is also relatively old, the color is not bright, and even damaged to a certain extent. In order to make these old red brick exterior walls glow with new vitality, some renovation is needed.

1. Cleaning the wall: First, thoroughly clean the wall and remove the stains, moss and other substances attached to the wall. You can use a professional cleaning agent and rinse with high-pressure water.

2. Repair the brick joint: the brick joint of the red brick exterior wall of the old house cracks and falls off, which needs to be repaired in time and can be filled with professional cement mortar.

3. Spraying surface protective agent: After cleaning and repairing, the surface protective agent can be sprayed on the wall to play the role of waterproof, antifouling and ultraviolet protection. At the same time, we can also spray charcoal, graphite and other special effects as needed.

4. Add decorative elements: If you want to make the red brick exterior wall of the old house look more beautiful, you can add some decorative elements, such as brick carvings, murals and other decorative paintings, which will have higher artistic value.

In short, the renovation of the red brick exterior wall of an old house needs to start from many aspects. Under the premise of ensuring that the wall is basically intact, it can be rejuvenated by means of cleaning, repairing, protecting and decorating.