To secure a crumbling facade, there are a few steps you can take:
Identify the cause of the damage: Often, facade damage is due to damp walls or poor insulation. To ensure that repairs are effective, the cause of the damage must be addressed.
Remove loose or damaged bricks or mortar: If parts of the facade are loose or damaged, they must be carefully removed and replaced.
Use new mortar to securely anchor the stones or bricks: use hydraulic mortar to ensure that it has sufficient adhesion and that the damage does not recur.
Protect the facade from further damage: Put measures such as gutters and drains in place to prevent water from running down the facade and causing damage.
It is important that the repairs are done by a professional craftsman to ensure that they are safe and durable. If the damage to the façade is extensive or if in-depth repairs are required, it may be necessary to hire an architect or civil engineer to ensure that the building remains safe and stable.