Additional Information Risk Assessment The item is by design a low risk rating. Deviation from the criteria set out below may affect or invalidate the risk assessment of this product, therefore altering the risk rating to a higher category. The risk assessment is based upon our knowledge of the product at the design stage and assumes that the following criteria are met. Surfacing types, depths and areas must be strictly in accordance with the manufacturer`s recommendations. The product is in a new condition and that there have not been any modifications to the original design. Installation of the product must be carried out by qualified persons and strictly in accordance with the instructions supplied by the manufacturer. Any spare parts used in the maintenance of the product must be from an original or approved source.