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British Standards for Workmanship on Building Sites
BS 8000 seriesNI-wide·Technical Booklet B Materials and Workmanship
BS 8000/12: 1989 Workmanship on building sites. Code of practice for decorative wallcoverings and painting. BS 8000/13: 1989 Workmanship on building sites. Code of practice for above ground drainage a
workmanshipdrainagewater-servicessealinginsulationcavity-wallsInsulated external walls - examples
Diagram 6.4NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture
Solid walls: external protective system with 50 mm minimum residual cavity, breather membrane, sheathing board, vented and drained cavity. Cavity walls: (a) External insulation, (b) Internal insulatio
dwellingnon-domesticinsulationexternal-wallsmoisturecondensationInsulation in cladding construction
6.28NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture
Insulation can be incorporated into the construction provided it is either protected from moisture or is unaffected by it.
insulationcladdingprotection-from-moisture