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Insulated 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-wallsmoisturecondensationFixing of cladding sheets and tiles
6.27NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture
Each sheet, tile and section of cladding should be securely fixed. Guidance as to appropriate fixing methods is given in BS 8000-6. Particular care should be taken with detailing and workmanship at th
protection-from-moistureexternal-wallscladdingJoints at doors and windows in external walls
6.31NI-wide·Technical Booklet C Site Preparation and Resistance to Contaminants and Moisture
The joint between walls and door or window frames should – (a) resist the penetration of precipitation to the inside of the building; and (b) not be damaged by precipitation and not permit precipitati
protection-from-moistureexternal-wallswindowsdoorsCavity walls excluded from certain provisions for cavity barriers
Diagram 4.5, para 4.35 4.36(a), 4.39 4.40(a) and Table 4.6 Items 1, 3 & 4NI-wide·Technical Booklet E Fire Safety
External cavity wall of two leaves of brick, block or concrete each at least 75 mm thick – cavity width 300 mm maximum. Cavity barrier at top of wall (unless cavity is totally filled with insulation).
fire-safetycavity-barriersexternal-wallsSeparating wall junction methods with external cavity walls
2.37NI-wide·Technical Booklet G Resistance to the Passage of Sound
The separating wall should be joined to the inner leaf of the external cavity wall by one of the following methods – (a) Bonded. The separating wall should be bonded to the external wall in such a way
soundflatsdwellingseparating-wallsexternal-walls