Pairing Ravago stonewool insulation slab with a 6mm fibre cement layer, Ravatherm SW A2 Upstand Board provides a natural, non-combustible insulation solution for upstands in inverted roof finishes. 

SW A2 has been designed to meet the latest version of Approved Document B of the Building Regulations 2010, which introduces a ban on combustible materials and so requires that any attachment to the external walls of relevant buildings above 11m in height must use non-combustible materials in order to be compliant. 

Ravatherm SW A2 Upstand Board has been tested against Reaction to Fire EN 13501-1: 2018 and achieves a Euroclass A2 – s1, d0.