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A new and simple way of upgrading timber floors to achieve 30-90 minutes integrity and insulation to BS 476 part 22. Particularly useful where lath and plaster ceilings cannot be disturbed or where loewer floor occupancy does not allow fire upgrading such as fire rated plasterboard to be installed from underneath. Suitable for use in both small units such as flats over shops as well as large projects such as period commercial buildings and stately homes. Tested to: BS 476
Pt 22.
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