Vacuum Insulated Glass Perth

The key difference is the cavity: standard double glazing traps a layer of argon gas or air between two panes to slow heat transfer, while vacuum insulated glass removes that gas entirely, evacuating the cavity to roughly one ten-thousandth of atmospheric pressure so there is almost no conduction or convection across the gap. The result is a unit typically 6 to 8 mm thick with a centre-of-glass U-value of approximately 0.4 W/m2K. High-performing double glazing reaches approximately 1.2 W/m2K; both are high-performance options, with vacuum glass being the slimmest and lowest U-value choice in Penot’s range. Acoustic ratings are approximately 39 to 41 dB Rw for vacuum glass and around 31 dB Rw for standard double glazing.

Vacuum insulated glass and triple glazing are both high-performance glazing options. The main differences are thickness, weight, and U-value. Vacuum glass is 6 to 10 mm thick at approximately 15 kg per square metre; triple glazing runs 36 to 40 mm and is heavier. Centre-of-glass U-values are approximately 0.4 W/m2K for vacuum glass and approximately 0.7 W/m2K for triple glazing, according to manufacturer technical data. Acoustic Rw ratings are approximately 39 to 41 dB for vacuum glass and 35 to 38 dB for triple-glazed configurations. The tradeoff is a higher upfront price for vacuum glass. For a side-by-side view, the triple glazing page covers that product in detail, and Penot can compare both at quote stage.

The price of vacuum insulated glass in Perth depends on the number and size of openings, the glass configuration (including any low-emissivity or solar-control coatings), the frame system, and site factors such as wind load or upper-floor access. It carries a meaningful price premium over both double and triple glazing, reflecting the specialist manufacturing and longer supply chain. Because there are no publicly listed installed prices that reliably reflect the Perth market, the most useful thing Penot can do is prepare a detailed quote for your specific home rather than a generic range. Call 1300 121 603 or use the free quote form to get your price.

Manufacturer-stated lifespans for vacuum glass range from 25 to 50 years. Standard argon-filled double-glazed units are typically stated at 15 to 25 years. The difference comes from the edge seal: vacuum glass uses a rigid glass-metal composite fused at high temperature rather than the polymer seals used in conventional units. Polymer seals can degrade over time and let gas escape, reducing thermal performance, while the rigid seal does not degrade in the same way. An internal getter also absorbs any gas that outgasses from the glass over time, maintaining the vacuum. Penot’s aluminium frames carry a 10-year frame warranty; for glass warranty terms specific to the product, ask at quote stage.

In most cases, yes: Penot supplies vacuum glass as a complete window or door unit, replacing the full assembly including frame and glass. This ensures the thermally broken aluminium frame is correctly matched to the glass, that the installation meets current NCC standards, and that the 10-year frame warranty applies to the whole unit. In some situations a 6 to 8 mm vacuum glass panel can sit within an existing frame’s rebate where the depth allows, but Penot’s team will assess whether the existing frame is worth keeping or whether replacing the full window delivers better long-term value. Call 1300 121 603 to discuss your openings.

Yes, internal condensation does not form on vacuum insulated glass under normal Perth conditions. The vacuum layer keeps the interior pane surface close to room temperature, so it stays well above the dew point of indoor air. Manufacturer data shows the interior surface dew point for a vacuum glass unit is approximately minus 36 degrees C at 18 degrees C indoors and 60 per cent humidity, which makes internal condensation effectively impossible in this climate.

You may occasionally see condensation on the exterior face of the glass on cold autumn or spring mornings. This happens because the glass insulates so well that the outside surface stays cool and drops below the dew point of outdoor air. It clears quickly as the sun warms the pane and is a sign the glazing is performing correctly, not a fault.

Yes. Vacuum insulated glass achieves acoustic Rw ratings of approximately 39 to 41 dB according to manufacturer technical data. Standard double glazing typically reaches around 31 dB Rw and standard triple glazing around 35 dB Rw. The evacuated cavity carries near-zero sound energy, and the physics makes vacuum glass particularly effective against low and mid-frequency noise such as traffic rumble and aircraft approach paths. For Perth homes near flight paths, main roads, or rail corridors, it is one of the strongest acoustic options available. Penot’s Perth flight path noise reduction page covers this in more detail.

The faint dot grid in vacuum glass is the array of micro support pillars inside the evacuated cavity, and they are a normal part of how the product works, not a manufacturing defect. These tiny spacers hold the 0.15 to 0.3 mm gap between the two panes open against atmospheric pressure, which would otherwise push them together. Under normal living conditions, viewed from sitting or standing distance, the pillars are not noticeable to most people. In certain lighting angles or on close inspection they can be seen as a very faint dot pattern.

You may also notice a small sealed disc near one corner of the pane. This is the evacuation port used during manufacture to draw out the air. It does not affect performance and is usually discreet, but it is visible. Both features are normal characteristics of vacuum glass, not manufacturing defects.