Interpretation of non-combustible material Subject No: 4 Subject: Interpretation of ‘constructed of substantially Non combustible material’ Introducing Officer: A Cross (Poole B C) Date: 3/12/1998 The wording above occurs in item 1b of class V1 Schedule 2 Exempt building work (Reg 9) - small-detached buildings. Differences in interpretation across the county, have resulted in some local authorities requesting applications for detached garages, which are within 1.0m of boundary and have tiled or slate roofs. Other authorities have interpreted this type of roof construction as substantially non-combustible and therefore determined that this type of garage is an exempt building. Clarification is therefore required to achieve a common approach throughout the county. I can confirm that the DETR B.Regs Div. consider the following within the definition of ‘substantially non combustible material’: -     Doors windows and fascias etc     Pitched roofs constructed of timber elements and covered     with non-combustible coverings     eg. Slate or clay/concrete tiles This interpretation was unanimously agreed by the Committee on 28.10.98 POLICY STATEMENT Pitched roofs with timber rafters and a roof covering of slates, clay or concrete tiles can be defined as constructed as ‘substantially non combustible material’ when considering exemption for small detached buildings, as described in item 1b of Class VI Schedule 2. Flat roofs constructed of timber and combustible decking with felt covering are not considered to fall within this definition and are therefore not exempt.

[ Home ]

© 1999, 2000 Dorset Technical Committee. All rights reserved. Whilst every care has been taken to ensure that the information contained in this web site is correct, Dorset Technical Committee cannot accept responsibility for any error or omission which may occur. Site Design and Maintenance: East Dorset District Council