Ezylay system
Mortar installation
| Blocks | 190 × 190 × 80 | 240 × 240 × 80 | 146 × 146 × 80 | 115 × 115 × 80 | ||||
|---|---|---|---|---|---|---|---|---|
| 38mm | 24mm | 38mm | 24mm | 38mm | 24mm | 38mm | 24mm | |
Design data & documentation
Technical
information.
Practical reference data for specifying, sizing and installing glass blocks—from coursing dimensions and energy performance to curved walls and glass paving.
01
Planning dimensions
Coursing charts
Dimensions below are aluminium frame sizes. Allow 5–10mm clearance when constructing openings.
Download PDF ↓
Ezylay system
Silicone installation
| Blocks | 190 × 190 × 80 | 240 × 240 × 80 | 146 × 146 × 80 | 115 × 115 × 80 | ||||
|---|---|---|---|---|---|---|---|---|
| 38mm | 24mm | 38mm | 24mm | 38mm | 24mm | 38mm | 24mm | |
02
Building performance
Light, energy & sound
Thermal insulation
Seves glass blocks provide thermal insulation while transmitting natural light. Ezylay mortar and silicone installations have been assessed and certified by WERS.
Sound insulation
Different glass-block types provide different acoustic ratings, making them useful for reducing noise from busy roads, neighbouring properties and commercial flight paths.
Light transmission
Standard colourless blocks transmit up to 80% of light. Tinted, satin-etched, light-diffusing and light-directing designs provide varying levels of privacy and control.
Comparison table
Performance data
| Range | Glass brick type | Light trans. | U-value | g-value | Sound |
|---|---|---|---|---|---|
| Design | Q19 colourless | 80% | 2.6 | 78% | 39 |
| Design | Q19 Nordica (grey) | 50% | 2.6 | 67% | 39 |
| Design | Q19 Satin (etched) | 61% | 2.6 | 68% | 39 |
| Design | Q19 Nordica Satin | 33% | 2.6 | 57% | 39 |
| Basic | 1919/8 colourless | 80% | 3.0 | 79% | 37 |
| Basic | 1919/8 grey tint | 53% | 3.0 | 69% | 37 |
| Technology | 1919/8 BSH20 | 71% | 2.8 | 69% | 42 |
| Technology | 1919/8 F30 | 61% | 2.2 | 50% | 47 |
| Technology | 1919/16 F60 | 50% | 1.8 | 50% | 49 |
| Technology | 1919/16 F90 | 38% | 1.4 | 31% | 51 |
03
Strength & compliance
Security and weather
Security
Glass thickness and reinforcement can be selected to meet demanding security requirements. Certain Technology range blocks have also undergone ballistic testing for bullet resistance.
Residential
- Entry sidelights
- Garage windows
- Storage-area windows
- Enclosed balconies
Commercial
- Banks
- Police stations
- Military establishments
- Correctional facilities
Wind loading & water penetration
Ezylay mortar and silicone installation systems have been tested for wind loading and water penetration by a NATA-approved laboratory.
Silicone-jointed panels may be constructed up to 5 metres wide externally. Mortar-jointed panels may extend to unlimited widths when expansion joints are installed at least every 6 metres. Performance data is available on request.
04
Design geometry
Curved glass block walls
Glass blocks can form curved stairwell walls, room dividers and shower screens. The minimum practical radius depends on the block width.
E = [(Lo + gv) × (1 + s/r)] − Lo
Np = r × π × a / [180 × (Lo + go)]
- E
- External vertical joint size (cm)
- Np
- Number of glass blocks
- Lo
- Glass block length (cm)
- gv
- Internal vertical joint size (cm)
- r
- Internal curvature radius (cm)
- s
- Glass block lateral thickness (cm)
- a
- Angle of the curve
- go
- Horizontal internal joint (cm)
05
Trafficable applications
Slip resistance — glass paving
Glass pavers used in trafficable areas may require a sandblasted top surface to meet slip-resistance requirements. Seves glass pavers have been tested by CSIRO and certified to an R10 slip-resistance rating. The test certificate is available on request.
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