Publication of the Scottish Advice Note: Determining the fire risk posed by external wall systems in existing multi-storey residential buildings (version 2.0)

The Scottish Advice Note: Determining the fire risk posed by external wall systems in existing multi-storey residential buildings (Version 2.0) has been published today which replaces Version 1.0.  Version 2.0 includes editorial changes and more detailed guidance on the external wall system appraisal process.

The update to SAN version 2.0 is not a full rewrite but an update to support the development work of the Cladding Remediation Programme and to bring the SAN in line with programme delivery. The key changes to Version 2.0 of the SAN are:

•         Foreword updated and re-ordered;

•         Document updated to reference PAS 9980:2022 as a source of additional information on fire risk appraisals;

•         Minor editorial changes throughout including updated reference to standards;

•         Reference to recent changes to building regulations updated and historical information on BS 8414 moved to Annex 4;

•         Definition of highly combustible Metal Composite Material (MCM) cladding updated to reflect changes to building regulations;

•         Table 2 introduced on ‘Examples of typical external wall systems on residential buildings’;

•         New section 2.5 on risk rating of external wall systems added;

•         Addition of substantive Annex 5 ‘Practical Guide to the Appraisal of External Wall Systems in Residential Buildings’;

•         Flowchart replaced with new flowchart at Annex 6 describing the External Wall System Appraisal process.