Glass. Ordering Glass Contractual Requirements Statutory Requirements.

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Presentation transcript:

Glass

Ordering Glass Contractual Requirements Statutory Requirements

Ordering Glass Contract Requirements Are these requirements above the NCC

Statutory Requirements National Construction Code (NCC) Development Controls by Certifying Authorities – Development Applications (DA) – Development Control Plans (DCP) Other – Health Care – Child Care etc

National Construction Code Volume 2 Class 1 &10 Performance Requirement

NCC Acceptable Construction Manuals

NCC Acceptable Construction Practice

Deemed to Satisfy (DTS)

Development Control Development Application

Barriers

Class 2 to 9 Building NCC Volume 1

BASIX

Ordering Client/Contract Requirements Statutory – NCC – Govt. Bodies – Certifying Authority – BASIX

Glass Properties

Manufacturing Tolerances

Annealed or Float Glass Molten Glass Laid on Molten Tin Slowly Cooled to reduce induce compressive forces – (Annealing)

Annealing

Breakage Characteristics of Annealed or Float Glass

Insulating or Double Glazing Multiple Glazing Filled with air or Argon Used for Acoustic or Thermal Requirements

Breakage Characteristics Dependant on Glass used in the panes

Toughened Glass

Thermal Toughening

Toughness Toughened Glass is Tougher that Float Glass Toughened Glass is more brittle Toughened Glass will shatter – Care should be used when using it as a barrier

Toughened Glass Internal Layer cools slower External cooled rapidly External Layer is drawn into internal layer Large compressive force formed (>60mpa)

Breakage Characteristics Stressed Surface cause it to shatter & crumble in < 5mm

Chemical Toughening

Breakage Characteristics Will break in the same manner as annealed glass

Disadvantages

Laminated Glass

Breakage Characteristics Binding layer will hold fragments

Stamping