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05.08.2025

Sheerline Now Offers 1.4 DG U-Values Across all Products

The image shows a royal blue background that fades to a darker blue. In the centre, it says ‘Everything 1.4’ in reference to Sheerline’s Classic update meaning every product now offers 1.4 double-glazed U-values. In the image, the 1.4 is made up of different pieces of window and door profile in an ombre style, going from white to grey and then a darker grey.

Sheerline’s Classic window range now offers U-values of 1.4 W/(m²K) with double glazing. This is thanks to the addition of a self-adhesive glazing seal from Q-Lon, which offers ultra-low thermal transmittance and is hidden within the glazing chamber, underneath the glazed unit.

The update reflects Sheerline’s commitment to simplified compliance as Classic now offers the same double-glazing U-values as the Prestige range with 1.4 U-values.

As part of Sheerline’s commitment to transparency, an independently verified U-value report is available to download via the website for every product. Each report explains the test conditions that were set as part of the simulation and outlines the performance of the product when tested against those parameters.

Ben Hartshorn, Technical and Design Director, said: “This is a great update to be able to offer our customers. Not only do we offer straight forward compliance our fabricators can rely on, but we’re also saving them money. As our U-values are independently verified, our customers can use these reports instead of paying for a BFRC subscription to have them verified.”

To find out more about Sheerline’s honest U-values (backed up by evidence), visit the website here.

At the end of July, Sheerline revealed the winning Installation of the Month project for June. Read all about it here.

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There is a blue square featuring two side-by-side images with the caption ‘before’ and ‘after’. The first image shows an outdated white PVC-u bi-fold next to the stylish Classic Heritage Door from Sheerline. There is also a diamond-shaped image in the bottom right-hand corner, which shows an image of the new doors, but looking out to a pretty garden. The combination of Sheerline’s Classic Heritage Door and S1 Roof Lantern have won Installation of the Month for June.

A Winning Combination: Sheerline’s Classic Heritage Door & S1 Roof Lantern

A project in Northampton that combines two of the most popular Sheerline products – the Classic Heritage Door and the S1 Roof Lantern – has won Installation of the Month for June. The winning entry was submitted by Fenster Glazing, who worked with leading fabricator, BSW Window Solutions. The installation replaced an outdated white PVC-u […]

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