SANS Compliance Hub
South Africa's glazing rules, stated plainly and referenced to the standard they come from. Written for architects, quantity surveyors, engineers and contractors who have to defend a specification, and for homeowners who do not want to pay twice for a door that was glazed with the wrong glass.
The rule that fails most projects first
Glazing is the discipline where non-compliance is invisible until it is inspected, or until it is broken. Start with where safety glass is compulsory.
Where safety glass is compulsory
SANS 10400-N, with impact performance per SANS 1263-1. Class A is a 400 J drop-bag rating.
| Location | What triggers it | Minimum requirement |
|---|---|---|
| Doors and side panels | Any glazing within 300 mm of a door frame opening | Class A safety glass |
| Low-level glazing | Any pane installed lower than 800 mm from the finished floor level | Class A safety glass |
| Bathrooms and wet areas | All shower cubicles, bath screens and panels within 2.1 m of the floor | Toughened safety glass, minimum 6–8 mm, or 10 mm for frameless; laminated safety glass also accepted |
| Overhead and roof glazing | Skylights, rooflights, canopies and any glazing above head height | Laminated safety glass, so shards are retained on failure rather than falling |
| Frameless doors and balustrades | Structural glass with no frame to hold the panel in place | Toughened or toughened laminated: 10–12 mm for post systems; 12–15 mm and heavier for base-channel cantilevered systems, per SANS 10160 line loads |
| Public and hazard areas | Mirrors in gyms, dance studios, schools, malls and change rooms | Foil-backed safety mirror or mechanically secured safety glass |
Turn this table into a specification
Describe the opening — its type, height above the floor, distance from a door, province and exposure — and the specifier returns the required glass class, minimum thickness, dead weight, deflection limit and thermal target, each with the rule it came from.
Guides by standard
Each guide states the requirement, the standard it comes from, and what it means on a South African site.
Safety Glazing
Where safety glass is compulsory, which class it must be, and why annealed float in a door is an open liability.
SANS 10400-N Safety Glazing: Where Safety Glass Is Mandatory in South Africa
The six locations that make safety glass compulsory, the thickness each one demands, and the deflection limits that follow.
SANS 1263: How Safety Glass Is Classified in South Africa
Class A against Class B, the three parts of the standard, and how to read the marking that proves a pane is what the invoice says it is.
Wet-Area Glazing: Shower Enclosure Requirements in South Africa
The 2.1 m rule, why frameless demands 10 mm, and the failures we find on site most often.
Safety Mirrors in Gyms, Studios, Schools and Malls
Why an adhesive-only mirror wall is the wrong specification in any public space, and what to build instead.
Energy Efficiency
Fenestration area limits, achievable U-values and solar heat gain control by South African climatic zone.
Fire Safety
Integrity versus insulation rated glazing, escape routes, party walls and fire doors — specified as a tested assembly.
Loads, Fixing & Sign-Off
Balustrade line loads, dead weight and hardware selection, wind and water testing, and the paperwork that closes a project out.
Glass Balustrades: Line Loads Under SANS 10160 and How They Set the Thickness
Why a balcony panel is 12 mm and a base-channel terrace needs 15 mm, and what the fixing has to carry.
Calculating Glass Dead Weight: The 2.5 kg Rule and What It Loads
The formula every glazier should be able to do in their head, worked through on a real panel.
AAAMSA & SAGGA: Wind Load, Water Penetration and Competent Person Sign-Off
The two industry bodies behind a fenestration project that closes out without a fight, and the documents each one produces.
Energy efficiency by climatic zone
The prescriptive route limits fenestration to a percentage of the net floor area, typically 15%. Past that limit the design must be justified by a rational calculation. Either way, U-value answers how fast heat crosses the assembly and SHGC answers how much solar radiation it admits, and the correct balance is different in every zone.
Climatic zones
What each South African zone asks of the glazing specification.
| Climatic zone | Where it applies | What it demands of the glazing |
|---|---|---|
| Zone 1 — Cold interior | Highveld: Johannesburg, Pretoria, the Free State and the eastern interior | Favour solar gain in winter but control summer overheating: Low-E glass or a DGU, with SHGC tuned to let winter sun in |
| Zone 2 — Temperate coastal | KwaZulu-Natal coast: Durban, Umhlanga, Richards Bay | High humidity and salt exposure: corrosion-resistant framing, controlled solar gain, and laminated panes chosen for storm and impact performance |
| Zone 4 — Mediterranean | Western Cape: Cape Town, the Winelands and the Garden Route | Strong winter wind and driving rain: the wind-load and water-penetration class of the system matters as much as the glass, with SHGC kept low against summer sun |
The thermal specification ladder
Achievable whole-assembly U-values, with the practical entry point for compliance.
| Assembly | U-value | When to specify it |
|---|---|---|
| 4 mm clear float in standard aluminium | ≈ 5.8 W/m²·K | Internal partitions only. Poor for an external envelope. |
| Toughened single glazing in thermally broken aluminium | ≈ 4.5–5.0 W/m²·K | Renovations where the frame is the dominant heat path and the budget is tight. |
| Single Low-E glazing | ≈ 3.5–4.0 W/m²·K | Existing single-glazed openings that cannot take a double-glazed rebate. |
| Double glazed unit, clear | ≈ 2.7–2.9 W/m²·K | The practical entry point to a compliant envelope. |
| Double glazed unit with Low-E and argon | < 2.8 W/m²·K, down to ≈ 1.6 W/m²·K | New residential and commercial envelopes chasing XA compliance without a rational design. |
Fenestration compliance checklist
The items that decide whether a glazing installation passes sign-off the first time. Work through it on site, print it for the file, or send it to us with your schedule.
Fenestration compliance check
0 of 23 confirmed before the competent person inspects.
Design and drawings
Safety glazing
Energy and thermal
Fire
Structure, fixing and installation
Documentation and close-out
Standards and bodies referenced
The documents this library interprets, and what each one governs.
Glazing
Deemed-to-satisfy glazing rules under the National Building Regulations: where safety glass is compulsory, minimum thicknesses and human impact protection.
Impact performance of safety glazing
Architectural safety glazing classification: Class A (400 J drop-bag) and Class B (200 J). Parts 2 and 3 cover ballistic and blast resistance.
Energy usage in buildings
The prescriptive route for fenestration area, insulation values and solar control in new and extended buildings.
Energy efficiency in buildings
The performance framework behind XA: U-values, SHGC limits and air-tightness by climatic zone.
Fire protection
Fire resistance of elements of construction, including fire-rated glazing in escape routes, party walls and fire doors.
Fire test methods
The test standard that produces the integrity (E) and insulation (EI) ratings quoted for fire-rated glass assemblies.
Basis of structural design
Actions on structures, including the horizontal line loads that govern glass balustrades and guard glazing.
Architectural Aluminium Manufacturers
Wind-load and water-penetration testing, deflection limits and performance classification for aluminium systems.
Glass & Glazing Association of SA
Competent person sign-off, Form 4 submission support and Glazing Certificates of Conformance.
Figures quoted here are the prescriptive requirements of the SANS standards named against each item. Standards are revised periodically and a project's specific conditions (wind category, altitude, exposure, occupancy) can change the answer. Confirm the current edition of the standard and obtain sign-off from the competent person appointed on your project before you fabricate or install.
Documentation that closes a project out
Fabricated at our Meadowdale facility in Johannesburg and installed nationwide. Every scope that requires sign-off leaves here with the paperwork that proves what was built.
Glazing Certificate of Conformance
Signed by a SAGGA-registered competent person, naming the glass type, thickness, class and location of every pane we supplied.
AAAMSA performance submission
Wind-load, deflection and water-penetration certification for the aluminium system as installed, with the test classification quoted.
Form 4 submission support
Documentation pack prepared for the local authority on request, so sign-off is not held up by missing glazing evidence.
Fabrication drawings and cut sheets
Dimensioned drawings, glass schedules and profile cut lists issued from our Meadowdale facility against the approved revision.
Thermal and solar schedule
U-value and SHGC values for the specified assemblies, tabled against the climatic zone the project falls in.
Installation and fixing schedule
Anchor type, centres, sealant and drainage details per elevation, so the rated system is not compromised on site.