Is External Fire Spread a B3 or B4 Issue?
By: Roy Little, Senior Associate and Francesca Ravenhill, Senior Engineer and Analyst. Is fire spread, via the external wall, a B3 or B4 issue, and can the two even be considered separately? Maybe the answer to these questions comes down to the method of fire spread, and where it spreads to? For reference requirements B3(3) and B4(1) from […]
- Posted by Design Fire Consultant
- On 16th August 2023 Read More