Members only 20 May 2025 GN71 Considerations for Overlaying an Existing Flat Roof This guidance details the considerations to be taken into account when overlaying a flat roof. Guidance note
06 May 2025 SPRA NFRC Declarations of Performance and Conformity Assessment Marking This document builds on the guidance outlined above. NFRC Guide
06 May 2025 SPRA NFRC Technical Guidance - Stone Mineral Wool Insulation for Flat Roofing This document provides guidance about the use of stone mineral wool insulation products with sufficient compressive strength for flat roofing applications. NFRC Guide
