Source: https://codehub.building.govt.nz/home/resources/4223-1-and-21985nzs/
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NZS 4223 Parts 1 and 2:1985 Code of practice for glazing in buildings - The selection and installation of manufactured sealed insulating glass units | Building CodeHub
NZS 4223 Parts 1 and 2:1985 Code of practice for glazing in buildings - The selection and installation of manufactured sealed insulating glass units
Amendments 1, 2 - appended.
This Standard lays down requirements and recommendations for the selection of glass for buildings, paying particular attention to loading, thermal control, and human impact safety as well as general design principles. It also provides a method for the installation of glass in buildings. It is not intended to apply to non-inhabitable buildings for horticultural use.
Part 1 covers design and installation considerations for the general situation and deals with safety requirements.
Part 2 relates specifically to sealed insulating glass units.
NZS 4223 Parts 1&2:1985 is cited by AS/NZS 2712:2007 Solar and heat pump water heaters - Design and construction
NZS 4223 Parts 1&2:1985 is cited by NZS 4211:1985 Specification for performance of windows
NZS 4223 Parts 1&2:1985 is cited by NZS 4223.3:1999 Code of practice for glazing in buildings - Human impact safety requirements
NZS 4223 Parts 1&2:1985 is cited by NZS 4613:1986 Domestic solar water heaters
NZS 4223 Parts 1&2:1985 is cited by Simple House - Acceptable Solution Revoked
Part 1The selection and installation of glass in buildings
Section 101 Classifications
101.2 Transparent glass
101.3 Translucent glass
101.4 Processed glass
101.5 Miscellaneous glass
Section 102 Work on glass
102.2 Cutting processes
102.3 Obscuring processes
102.4 Silvering
102.5 Gliding
102.6 Staining or painting and firing
102.7 Shaped, drilled and notched glass
102.8 Bending
Section 103 Design considerations
103.2 Natural light
103.3 Thermal considerations
103.4 Sound
103.5 Safety (Human impact safety requirements
103.6 Security
103.7 Fire
103.8 Durability
103.9 Strength of vertical flass to withstand uniform wind loading
103.10 Strength of sloped overhead glazing to withstand loadings
103.11 Sloped glazing
103.12 Care of glass
103.13 Condensation
103.14 Louvres
103.15 Frameless glass assemblies
103.16 Buiding design, and maintenance
Section 104 Glazing materials
104.2 Function
104.3 Glazing putties-hard setting
104.4 Flexible glazing compounds
104.5 Sealants
104.6 Preformed strip materials
104.7 Preformed compressive gaskets
104.8 Miscellaneous glazing materials
Section 105 Procedures for glazing
105.2 References
105.3 Rebate dimensions
105.4 Edge cover
105.5 Edge clearance
105.6 Blocks
105.7 Rebate preparation
105.8 Glazing without beads
105.9 Glazing with beads
105.10 Glazing in grooves
105.11 Structural gaskets
105.12 Internal glazing
105.13 Fixing of mirrors
Part 2 The Selection and installation of manufactured sealed insulating glass units
Section 201 Selection and installing of sash and frames
201.1 Sashes and frames
201.2 Rebates and grooves
201.3 Aluminium bars
Section 202 Preparation of sash amd frames
202.1 Timber parts
202.2 Metal parts
Section 203 Blocks
203.1 Materials
203.2 Placements of blocks
203.3 Size of setting blocks
Section 204 Edge and face clearances
Section 205 Heat, drapes, shades films
Section 206 Treatment of the unit
206.1 Storage procedures
206.2 Glazing
206.3 After glazing
Section 207 Solar control and special product requirements in insulating glass units
207.2 Installations
Section 208 Procedures for glazing
Section 209 Performance of manufactured sealed insulating glass units
A Basis for determination of thickness or area of glass in accordance with the requirements for wind loading
B Examples of calculations for sloped and overhead glazing
1 Range of thicknesses and sizes in sheet glass
2 Range of thicknesses available in float glass
3 Edgework and beveling
4 Typical light transmission properties for different glass types
5 Typical solar radiant heat properties for glasses
6 Shading coefficients for a selection of 6 mm glasses with various arrangements of louvered blinds
7 Solar optical properties of glass and blinds materials considered in Table 6
8 Thermal transmittance of single glazing aggregate “U” values in W/m2K
9 Thermal transmittance of insulating glass units – aggregate “U” values in W/m2K
10 Sound insulation (dB)
11 Maximum area of clear or patterned safety glazing material for framed glass doors and framed glass side panels
12 Maximum area of clear or patterned ordinary annealed glass for framed glass doors and framed glass side panels
13 Maximum area of ordinary annealed glass for internal partitions
14 Ground roughness categories
15 Basic wind speed for vertical glazing
16 Safety factors
17 Loads on sloped glazing due to weights of glazing bars and glass
18 Combined pressure coefficients for roofs (Cp)
19 Loads on patent glazing due to weights of bars and glass
20 Basic wind speed for sloped glazing
21 Design wind pressures (Pa)
22 Maximum lengths for louvre blades of clear and patterned glass
23 Guides for the selection of glazing materials
24 Minimum rebate depths (putty fronting)
25 Minimum edge cover for single glass exceeding 6 mm thickness
26 Bead glazing
27 Minimum edge cover for single glass up to and including 6 mm thickness
28 Minimum edge clearance for glass
29 Determination of setting block leength
30 Edge and face clearances
A1 Factors of relative resistance to wind load for glasses of equal thickness
B1 Working pressures for glass (single glazing, with glazing bars)
B2 Working pressures for glass (double glazing, with glazing bars)
1 Glazing wedges amd back seals
2 Setting and spacing blocks
3 Placement of blocks
4 Measurement of clearances and other dimensions
5 “U” glazing channel
6 Types of brilliant cut (not to scale)
7 Finger slot (or cut sunk finger grip) (not to scale)
8 Relative position of notches and cut-out
9 Decision procedure for glass design
10 Examples of total transmission characteristic
11 Thermla break – low stress
12 Thermal break – high stress
13 Examples of pure tension failures including thermal breaks
14 Radius of fracture
15 Non-thermal break
16 Examples of tension failures from bending
17 Impact damage – face of glass
18 Impact damage – edge of glass
19 Human impact safety requirements
20 Annealed glass. Four edge support
21 Annealed glass. Two edge support
22 Toughened glass. Four edge support
23 Toughened glass. Two edge support
24 Laminated glass. Four edge support
25 Laminated glass. Two edge support
26 Patterned glass. Four edge support
27 Patterned glass. Two edge support
28Double glazing units. Four edge support
29 Double glazing units. Two edge support
30 The glazing rebate
31 Recommended positions of setting and location blocks
32 Glazing with putty fronting
33 Glazing with putty and beads
34 Glazing with hand grade non-setting compound and beads
35 Glazing with strip sealants and capping
36 Drained glazing systems
37 Compression glazing
38 Glazing into grooves
39 Structural gaskets
40 Setting blocks
41 Storage of units