Non-Ventilated Roof Insulation 2002 Regulations

Summary

This brochure describes the Alreflex 2L2 Super-R roof insulation material, a non-ventilated system, produced by Thermal Economics Ltd, and its installation in roofs and walls. Illustrations show the installation, in conjunction with insulation board, in new roofs, loft conversions and new buildings. Two layers are used. The inner layer, with taped joints, acts as a vapour barrier. The outer layer acts as the tile underlay, the overlapped joints providing permeability. Insulation board between the layers act as a void separator and allows air permeation. Use of the materials complies with BS 5250.

Source: Thermal Economics Ltd

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