Fineo glass: Comprehensive guide for homeowners

FINEO glass is a vacuum insulated glazing solution that brings cutting-edge technology to window insulation.

At the heart of this innovation is vacuum insulation. It enables the slim profile of insulated units to be as thin as 6.7mm while offering outstanding insulation properties.

This makes it ideal for homes where maintaining the original wooden windows is essential, such as period properties or listed buildings.

Vacuum between two panes of glass

What sets FINEO glass apart is its use of a vacuum between two panes of glass, which drastically reduces heat transfer by eliminating air between the panes and having low conductivity transfer properties.

This vacuum acts as a highly effective barrier, resulting in U-values as low as 0.7 W/m²K—comparable to triple glazing.

Key features of FINEO glass

Ultra-thin profile (as slim as 6.7mm or 7.7 mm FINEO 8 )

One of the standout features of FINEO glass is its thickness.

At just 6.7mm, it is significantly thinner than traditional double or triple glazing, making it ideal for installations where the rebate depth of the window frame is limited and the preservation of a building’s original window is essential.

High thermal performance (U-value as low as 0.7 W/m²K)

FINEO glass offers thermal performance on par with much thicker triple glazing.

With a U-value as low as 0.7 W/m²K, FINEO dramatically reduces heat loss through your windows, making it an excellent choice for homeowners looking to improve energy efficiency. 

Reduced noise transmission (blocks up to 35dB)

In addition to its thermal benefits, FINEO glass also excels in noise reduction. Capable of blocking up to 35dB, it offers substantial sound insulation, making it perfect for homes located in busy or noisy environments.

This feature is especially beneficial for urban dwellers or homes near roads, helping to create a quieter, more peaceful indoor environment.

The Science behind

Vacuum technology for superior insulation

At the heart of FINEO glass lies its innovative vacuum technology, which dramatically enhances insulation. The vacuum between the two panes of glass eliminates two of the primary modes of heat transfer—convection and conduction.

This vacuum-insulating layer makes FINEO glass one of the most energy-efficient glazing options available today​​.

Micro pillars – common feature of all VIG glazing units

To maintain the structural integrity of the vacuum-sealed glass, FINEO uses micro pillars. These tiny, transparent spacers are distributed across the vacuum space, ensuring the two panes do not touch.

Despite their presence, the micro pillars are almost invisible to the naked eye, preserving the clear, uninterrupted view through the window. This ingenious design feature allows for high light transmission while maintaining the durability and efficiency of the vacuum seal​​.

Edge sealing

This involves applying an inorganic material, such as glass frit, which is heated to a high temperature to form a strong, airtight seal between the panes.

The process preserves the vacuum between the panes without melting the glass itself, ensuring that the seal is durable and maintains insulation performance over time.

Absence of evacuation port

Unlike some other vacuum glazing brands, FINEO glass does not have a visible evacuation port, which can often compromise the appearance of the glass.

Benefits

Outstanding energy efficiency

FINEO glass provides superior thermal insulation by leveraging its vacuum-insulated technology.

This makes a significant difference, particularly in older homes where maintaining warmth can be challenging.

Noise Reduction

Compared to traditional single and double glazing, FINEO glass can reduce perceived noise levels by up to 34% compared to single glazing. 

FINEO glass contains more pillars per square centimeter. Although this detail isn’t explicitly mentioned in the technical documentation, our observations indicate that FINEO provides superior sound insulation compared to LandVac of the same thickness.

We believe this could be due to the denser arrangement of pillars, which may help disrupt sound waves more effectively.

Heritage compatibility

A major challenge for homeowners of listed or period buildings is finding modern solutions that do not disrupt the architectural integrity of their home.

FINEO’s Heritage range has been thoughtfully developed to meet these exacting requirements, ensuring that while the glass improves energy efficiency, it retains the original character of historic windows.

Enhanced durability vs standard double glazing

Compared to standard double glazing, FINEO is designed to last significantly longer while maintaining its thermal and acoustic properties without degradation.

Durability and Expected Lifespan: FINEO glass is engineered to last for several decades. The materials and vacuum technology used in its construction ensure that the glass retains its performance over time, with no deterioration in insulation or clarity.

Rigorous testing conducted by AGC Glass Europe, FINEO’s parent company, suggests a potential lifespan of up to 60 years under optimal conditions​​.

Guarantee: FINEO glass comes with a comprehensive 15-year guarantee, which covers the hermetic sealing of the vacuum unit and ensures peace of mind for homeowners​​​.

This guarantee is significantly longer than the 5-year warranties typically offered for standard double-glazed units​

UV protection

While traditional windows allow harmful UV rays to enter the home, causing damage to furniture and fabrics over time, FINEO glass provides nearly complete UV protection.

This preserves the interior of your home and significantly reduces the need for frequent replacement of curtains, upholstery, and flooring, especially in rooms exposed to sunlight​​.

Compare FINEO Specs vs. Traditional glazing options

Why FINEO glass is ideal for period and heritage buildings

Original wooden windows can be upgraded to double glazing without replacing them

Its ultra-slim profile (Depth thickness) ensures that it can be installed into existing sashes.

Homes with wooden sash windows that cannot be replaced due to the property’s historic importance and protection particularly benefit from this.

Approved for Listed Buildings

FINEO glass has been approved by numerous councils for installation in listed properties across the country. 

If you’re considering upgrading your original windows with vacuum insulated glazing (VIG) in a listed property, you’ll still need to apply for planning permission.

However, given the wide adoption and many successful applications, there’s a strong likelihood that permission will be granted.

How FINEO Glass is installed

At Six over Six Windows, we specialise in double glazing of original sash windows with vacuum insulated glazing. Our installation process involves retrofitting insulated glazing units into your existing window frames. This preserves the aesthetic integrity of your home while enhancing its energy efficiency.

Vacuum Insulated Glazing (VIG) is carefully installed into existing wooden windows by first removing the old single glazing. The sash is then prepared for the new unit. The process involves precision work to ensure the original wooden frames remain intact and retain their historic charm.

The sashes are cleaned, repaired if necessary, and adjusted to fit the slimmer, highly efficient VIG units.

We meticulously fit these vacuum-sealed panes into the original rebate of the window, ensuring a snug fit while preserving the traditional aesthetic.
We use specialized glazing putty or beads to secure the glass, then draught-proof the window to enhance energy efficiency and eliminate air leaks.

If you’re interested in upgrading your windows with FINEO glass, contact Six over Six Windows today for a consultation. With our expertise in installation and a track record of successful projects, we can help you enhance both the comfort and efficiency of your home.

Frequently asked questions (FAQs)