BS 9250:2007 PDF

BS 9250:2007 provides guidance on methods that can be used to meet the “well sealed ceiling” requirements for cold and warm pitched roofs. Applicable to architects, house builders, and building control officers it outlines robust design details for the construction of more airtight ceilings and for the control of air movement into pitched roofs. BS 9250 provides guidance for dwellings and domestic buildings on the selection of materials, design principles, construction methods and design details covering: the junction of walls and ceilings; junctions of ceiling materials; penetration through ceilings (e.g. pipes, outlets, cables, light fittings, loft hatches, tubular rooflights and roof windows). It also includes cold and warm roof applications and will apply to new, and the refurbishment of existing, buildings. List of content and figures for BS9250 Foreword iii     1. Scope      2. Normative references     3. Terms and definitions     4. Design criteria     5. Materials, fittings and accessories     6. Design details and installation Annexes Annex A (informative) Requirements for airtightness and control of condensation in the Building Regulations Bibliography List of figures Figure 1 – Defining the conditioned zone in a cold-roof building Figure 2 – Defining the conditioned zone in a warm-roof building Figure 3 – Joint in AVCL as a membrane with solid support, sealed using adhesive or double-sided tape Figure 4 – Joint in AV...