This document specifies the properties and acceptable tolerances for bonded human-made mineral wool thermal insulating board for the overdeck insulation of roofs of buildings. The product is intended for roofs carrying foot traffic by maintenance personnel only.

This document specifies the properties to be declared by the manufacturer at the time of delivery, as well as some test methods for the determination of these properties.

This document provides limiting values for most of the properties. These limiting values are for specification purposes only. Design values can be derived from these by considering the environmental factors affecting the thermal performance of the product, the influence of the product properties on installation, and the effect of workmanship on the thermal performance.

This document applies to board with or without a membrane for the insulation of the upper surface of roofs under roofing systems protected against water. The properties of a facing membrane are not described. When the board is supplied with a facing membrane, it is not intended to be waterproof.

The board specified in this document is intended to be fixed to the roof surface.