Owners and facility managers often search how long GRC lasts and how to repair it. Here is what to expect.
How long does GRC last?
Well-designed, correctly fixed GRC is a long-life façade material. It has no steel reinforcement to rust, and its service life depends mainly on design, fixing details, joint sealant and maintenance.
Why GRC cracks, and how to avoid it
- Restrained movement from rigid fixings
- Poor curing
- Impact or handling damage
- Failed joint sealants allowing water in
Flexible anchors, correct curing and good joint design prevent most issues.
Maintenance checklist
- Inspect joints and sealants periodically
- Clean surfaces to remove dust and staining
- Repair chips and hairline cracks early
- Re-coat painted finishes as specified
Questions & answers
Can cracked GRC be repaired?+
Yes. Chips and hairline cracks can be repaired and colour-matched; damaged panels can be rectified or replaced.
Does GRC need waterproofing?+
GRC itself has low permeability; water tightness of the façade depends mainly on joint sealants and the building envelope behind it.
Have a GRC or GRP project?Send your drawings or BOQ and our team will review the scope.
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