BuyGlass Slim Eco Light Heritage Glass 5.5mm Sightline / 12.00mm thickness / Satin Toughened / U-Value – 1.5


BuyGlass Slim Eco Light Heritage Glass 5.5mm Sightline / 12.00mm thickness / Satin Toughened / U-Value – 1.5

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£434.26 ex VAT per m2

  • C Rating*
  • Glass U-Value ~1.5
  • Xenon Gas
  • Warm Edge Spacer
  • 12.00mm Overall Thickness
  • Toughened Glass
  • Satin
Panels over 2.5m2 must be Priced as over size panels and may incur extra costs. please contact us.
Laminated Glass - Minimum Charge 0.5m2 (per panel)
Toughened / Float Glass - Minimum Charge 0.3m2(per panel)
Glass Sightline: 5.5mm
Panel 1 Thickness: 4mm
  • 4mm
Panel 1 Toughened / Float: Toughened
Panel 1 Type: Clear SoftCoat
  • Clear SoftCoat
Panel 2 Thickness: 4mm
Panel 2 Toughened / Float: Toughened
Panel 2 Type: Satin
Spacer Colour: Black
Spacer Thickness: 4mm
U-Value: U-value 1.5
SKU: 20-4/4/4-Clear SoftCoat/Warm Edge/Satin Tags: , , , ,
Total Area (sq m)
Product Price


Energy Rating (Unit Only)

  • C Rating*
    • U-Value – 1.5

    This Unit
    SKU:20-4/4/4-Clear SoftCoat/Warm Edge/Satin

    BuyGlass Slim Eco Light Heritage Glass 5.5mm Sightline
    Overall Thickness: 12.00mm

    Pane 1:
    4mm Toughened Clear SoftCoat HP Low E Glass

    Spacer Bar:
    4mm thick Black Warm Edge bar with 5.5mm sightline

    Pane 2:
    4mm Toughened Satin

    Price per m2 £641.088 ex VAT (£769.31inc)

    Heritage double glazing is ultra-slim, low-profile double glazing with an overall thickness of 10-14 mm. It is either filled with argon, krypton gas, Xenon gas or a mixture of. Both can be retrofitted into narrow rebates of original sash or casement wooden window frames.

    With new glazing systems such as slim double-glazed units, historic buildings can now improve energy efficiency without needing to install bulky secondary glazing or replace the original windows for new double-glazed windows.

    BuyGlass Heritage Glass range is creating a workable balance between the conservation of period buildings and the provision of energy efficient and comfortable homes which has long been an issue for Architects, Planners, Conservation Officers and home owners.

    • Conform to BS EN 1279/Part 2, Part 3
    • Can achieve as low as 1.2 U value
    • Can meet new Document L building regulations, subject to confirmation via “whole window” calculator tool
    • Can be supplied with low E, Restoration (reproduction Crown), toughened, laminated or may other special types of glass.

    Additional information

    Weight 20 kg
    Glass Sightline

    Spacer Thickness

    Spacer Colour

    Gas Filler


    Panel 1 Thickness

    Panel 1 Type

    Panel 1 Toughened / Float

    Panel 2 Thickness

    Panel 2 Type

    Panel 2 Toughened / Float

    Overall Unit Thickness


    Edge Polishing

    BuyGlass.Co pride ourselves on creating a beautiful end product. With edge polishing there are a few things to consider before you purchase & when evaluating the glass you receive.

    Depending on the process used, the edge finish can vary slightly between panels. All BuyGlass.Co edge polishing is finished to an exceptional standard and fully QC'd before release.

    If you require a uniform finish across all pieces then please contact us after the order is placed.

    Otherwise we will process the polishing using whichever process we choose, and although generally this would mean all glass uses the same polishing technique there are certain times when we may use various methods.

    Glass Corners

    Corners are supplied, as standard, with dubbed corner. If you require unfinished or radius corner please let us know.

    Laminated Glass

    We use multiple methods for creating laminated glass. CIP, SGP, PVB & EVA are totally different processes which produce very similar results. CIP however, due to the injection process, has a faint area at the perimeter which can be seen upon closer inspection.


    If you would prefer any particular method then you must let us know prior to production or else, at our discretion, we will use any method.



    BuyGlass.Co takes it's responsibility to the environment very seriously and that why all of our glass is manufactured here, IN THE UK.

    Pilkington Glass

    Saint-Gobain Glass


    All of BuyGlass.Co glass has passed an impact test (currently BS 6206: 1981) and either must not break or must break safely.

    Laminated Glass - BS EN 14449
    Toughened GlassBS EN 12150
    Wired Safety Glass
    All Security Glass


    Nobody likes paying for shipping. We don't like charging for delivery either, but glass is heavy and bulky, so if you spend £300+VAT (Single Glazed) on any of our products you will receive FREE delivery to most** of the UK.

    We deliver to the Whole of UK.

    DGU's - £75 (Palletised) Fire Rated Glass - £50 (Palletised)

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