Cladding
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Cladding is a layer mounted on the outer surface of a building structure that provides several key functions. It encloses the structure, protects it from weather elements, can be prefabricated for dry construction, and minimally increases the dead load on the frame. Effective cladding must integrate with the frame, resist weathering and fire while providing thermal and sound insulation. It must also be durable, stable against wind loads, allow for movement, and meet aesthetic goals.
Cladding
- 8. Cladding is a layer of a building frame structure and it mounted on the outer surface of a structure In the context of a framed building the primary objectives of the cladding system itself are: i) Provide an enclosure to the structure which will give the necessary protection against the elements
- 9. ii) Exploit dry construction methods where possible, including the use of off-site prefabrication iii) Impose the minimal additional dead load onto the frame iv) Enhance the architectural concept/appearance of the building
- 10. Strength and stability Compatibility with Integration with vertical and horizontal frame members/elements Weather resistance Durability Thermal insulation Fire requirements Sound insulation Aesthetic
- 11. Strength to support its own self weight between points of supports or fixings to the structural frame. Stability against lateral wind pressures. Allowance for differential movements between itself, the structural frame and other adjacent building elements.
- 12. Structure wind bracing arrangements. Ability to cater for frame movements
- 13. Resistance to wind, rain and other forms of precipitation (cladding and joints).
- 14. Durability, freedom from maintenance, and ability to weather well.
- 15. Avoidance of problems arising from ‘cold bridging’ and from surface and interstitial condensation. Minimisation of air leakage
- 16. Restriction of flame spread to internal and external surfaces and within voids
- 17. Prevention of sound originating in one part of the building being transmitted to other areas via cladding members/elements.
- 18. The need to respond to the context within which the building is situated. The need to satisfy the aesthetic aspirations of the client. (Weathering characteristics/durability of materials).