For the complete guide to Crib 5 and how to specify fire-rated fabrics for contract interiors, see: BS 5852 Crib 5: A Complete Guide for Interior Designers and Specifiers.
A designer asked: is it acceptable to use a Crib 5 interliner with a Crib 3 fabric in a restaurant?
The short answer is no. In non-residential spaces an interliner does not compensate for a fabric that does not meet the required fire standard. The Crib 5 interliner and Crib 3 fabric combination would not be acceptable in a restaurant or any other public space. The fabric itself must either be inherently Crib 5 or be treated to achieve Crib 5.
This combination might be acceptable in an office environment where Crib 3 is the required standard, but not in a public-facing hospitality environment.
Related
- What is Crib 7?
- FR treatment, BS 7176, and Crib 5
- UK and European fire treatment for interior fabrics
- The cigarette and match tests BS 5852
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