Structural protection · Structural rectification
Can damaged structural fire protection be repaired?
Often, if the existing system can be identified and its repair instructions or supporting evidence cover the damage. A patch is not automatically valid just because it uses the same-looking material.
Before anything else, settle the material question. Sprayed asbestos coatings were applied to structural steel from roughly the 1930s into the 1970s, and they are friable. Do not scrape, sample, sand or patch it to find out. Check the asbestos register first and treat the material as asbestos until an assessment establishes otherwise. Everything below assumes the material question has been resolved.
What changes the answer
- building age, and whether the material status has been established
- existing system identity
- type, depth and extent of damage
- condition of the steel or substrate beneath
- whether reinforcement, mesh, pins, primer or topcoat form part of the system
- access to the damaged area and adjacent sound material.
What to check on site
- wide photograph and close-ups, taken without contact
- member ID and system records
- extent of delamination, impact or water damage
- any corrosion or substrate issue.
What to do next
Identify the existing system first. If a supported repair path exists, document the repair and the final QA. If the system cannot be established, escalate before covering the evidence gap.
General information only. A conclusion about a specific condition requires the actual construction, the evidence behind it and the site condition to be reviewed.