Mid-rise Buildings - Fact Sheet 4 (FS4) - Exposed issues - Reinforcing steel cover
- Abbreviation
- Mid-rise Buildings - Fact Sheet 4 (FS4)
- Valid from
- 25/10/2018
- Information provider
- BRANZ Limited
- Information type
- Fact sheet
- Format
Description
When reinforcing steel is too close to the surface, it begins rusting and expanding, causing the surrounding concrete to break away.