Promat Masterboard is a versatile class 0 building board suitable for both internal and semi exposed applications. It’s the only board to have 30 years proven experience with a BBA certificate to prove it’s fire resistance. It can provide up to 30 minutes fire protection and will not deteriorate when used in damp and humid conditions. Can also withstand high temperatures and temperature fluctuations. Applications include partitions, ceilings, swimming pool ceilings, wall and roofs etc…
Find a link for Promat Masterboard here – https://www.promat.co.uk/en/products/masterboard