Code of practice for design of the airtightness of ceilings in pitched roofs Ingestion-build-44616 Who is BS 7121-1 -

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Code of practice for design of the airtightness of ceilings in pitched roofs Ingestion-build-44616 Who is BS 7121-1 -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