Intumescent Letterbox Assemblies
Intumescent Letterbox Assemblies with a 30 minute fire rating - available in a variety of finishes.
Read moreOur Intumescent Letterbox Assemblies have been extensively tested to the latest British standards BS 476 parts 22 & 31.1 and have achieved a 32dB Rw rating on a BS EN ISO 240-3 acoustic test.
- 30 minute fire rating
- Fire tested to BS 476 part 22
- Smoke tested to BS 476 part 31.1
- Acoustic tested to BS EN ISO 240-3 achieving 32dB Rw
- Security PAS 23/24
- Dimensions: 270mm x 70mm
