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insulation sound proofing draught proofing stop condensation
elegant secondary glazing
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Extraglaze Explained
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  • 7 days ago
    ratings 5
    Fantastic for original single glazed windows
    This product is truly amazing for any property that has an original single glazed window fitting, such as wood or metal crittal. As an award winning estate agent covering the wider Bromley area in Kent, we are approached by Landlords and property owners in need of adding some form of insulation to...
    Tracey Cannon, Vincent Chandler Estate Agents, Bromley, Kent
  • 1 week ago
    ratings 5
    Very straightforward, no problems and just as ordered.
    Barry Hunt
  • 2 weeks ago
    ratings 3
    Smooth transaction
    Service rating : ordered and delivered as expected
    Product : awaiting to see reduction in my heating bills
    Thank you for your review submitted on Feefo.

    I believe you gave it fewer stars than any other customer, so we are disappointed that you are disappointed with Extraglaze.

    We expect your windows will last longer as a result of the Extraglaze, be free from condensation and also need...
    George Tillier
  • 2 weeks ago
    ratings 5
    Service rating : We didn't fit the panels straight away so I hadn't noticed the fitting instructions were missing. Richard Greenland, the director, sent these a few days later with an apology that they had been left out of the parcel.

    We were kept informed of the progress of our order,...
    Anne Dean, Enfield
  • 1 month ago
    ratings 5
    Service rating : I spoke with the team at Extraglaze and they were brilliant explaining everything I needed to know
    Product : Amazing product easy to fit and works brilliantly
    Andrew Eaton

Extreme Adhesive Test

 

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We wanted to prove to ourselves our adhesive is as good as if not the best!

Proven to improve

 

coventry university logo bre logo

 

The Building Research Establishment and Coventry University complete tests of the Extraglaze system
Soundproofing and thermal test results...

Read more...

Recommended for Listed Buildings

 

Telford and Wrekin Conservation Department encourage the use of secondary glazing, where possible, to increase thermal efficiency.

Read more...
 

Proven to improve

 

Extraglaze tested at Coventry University and at the Building Research Establishment

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Coventry University – Thermal insulation tests

In April 2014 we received confirmation that Extraglaze is a scientifically proven thermal insulation solution that beats a typical aluminium framed alternative.
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Outside the University's Environmental Chamber.
 
Below - Extraglaze put to the test in the Environmental Chamber

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The university's Sustainable Buildings Future project used their Environmental Chamber to compare Extraglaze with an aluminium-framed, glass-pane secondary glazing system...
...Extraglaze came out the clear leader.

arrowpichigh tinyWith both systems tested on a single glazed sash window the U-value for Extraglazeproved 11% better (2.28W/m²) than the alternative product.

arrowpichigh tinyWe already knew that Extraglaze would be a better solution to deal with condensation, and the tests confirmed it. In a humid room test (60%RH), with below zero temperatures outside (-5 and -10ºC) Extraglaze was an impressive 78% better.

bre logo BRE – Sound insulation tests
In July 2013 a large timber framed window (1.3m² of visible glass) was installed in the Building Research Establishment's (BRE) Horizontal Transmission Suite, and tested against an aluminium framed glass secondary glazing system. A wide range of tests were made, to see how secondary glazing could not only improve a single glazed window but even a double glazed window.
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Extraglaze put to the test in the Horizontal Transmission Suite
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To summarise the results both systems were rated "good" as a sound insulator for noise problems. We learned in particular that smaller panels do best, being more rigid, and the larger the gap, between the original window glass and the Extraglaze, the better. What surprised us most was that it didn't seem to make much difference whether the original window was double glazed or single glazed.

Proof in practice
In January 2014 Extraglaze was installed onto brand new triple glazed UPVC bay windows in a home by a main road. The triple glazing had been installed to cut the road noise but had proven ineffective. However, with the addition of Extraglaze road noise was almost completely eliminated.
extraglaze soundproofing

And news from customers...

We have an ever increasing number of testimonies from our customers, which can be seen in the testimonials section. It is clear that our customers enjoy their homes much more now than they did before Extraglaze was installed, being much warmer and much quieter.

For more information about Extraglaze please view the information in this site or contact us on the number above.

If you are an engineer or architect please contact us to discuss the results of tests in more detail.

 

Help & Guides

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How to stop condensation

 

For sash windows
sash up
 
For casement windows
casement up
 
Easy Open System
easyopen up
 

 

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