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Quick Guide to Products
Which system to use?

Unheated Spaces, canopies, station and platform glazing SkyGard should be your first choice if using 6 to 7mm thick glass. If considering different glass thickness, then PlasGard would be your next choice

Heated Spaces
ThermGard is our thermally broken system providing excellent Uvalues and air-tightness when combined with insulating double glazed units for compliance with Building Regulations Part L.

Self-supporting Lanterns or SkyLights
SpanGard self-supporting rooflights feature extruded cill, ridge & hip members to provide you with a complete kit pre-fabricated upto 6m wide by infinite length without the need for additional support, other than a load-bearing curb.

If using Polycarbonate
PlasGard offers a range of glazing bars & accessories for use with ‘plastic’ glazing materials for unheated spaces. If you require a thermally broken system, then please see our ThermGard ALM500 Series

Rafter Glazing
If fitting glazing bars on top of continuous timber rafters, then section reference ALM100/WF suitable for single or double glazing from our ThermGard range, provides neat, low-profile appearance combined with excellent weather tightness and low-maintenance.

Need ventilation?
GlazaTherm roof vents can be incorporated in sloped glazing and fitted with manual, electric or smoke actuators. Alternatively we can provide casement vents in the upstands of lantern lights when required.
Consult the experts
Tel: +44(0)208 801 4221
Email: info@lonsdalemetal.co.uk
SkyGard Glazing Bars
SkyGard Glazing Bars
PlasGard Glazing Bars
ThermGard Glazing Bars
SpanGard Lanterns & Skylights
GlazaTherm Ventilators
Solar Panels

SkyGard Glazing Bars


SkyGard is a traditional inverted ‘T’ bar design ideal for unheated spaces such as canopies, walkways, verandahs, car ports, shelters or rail platforms. Easy to install, SkyGard offers exceptional value to the building owner and fast installation times for contractors.

We were able to glaze over 30% more area per day at Waterloo using SkyGard than on previous contracts using our old supplier” – Mr Steve Arthurs, Project Management Contracts Ltd

  • Quick and easy to fit continuous pressure beads
  • Traditional inverted ‘T’ bar appearance
  • 6-7mm single glazing
  • Economy without sacrifice to quality or performance


  • Click here for Fastrack CAD Download typical installation details.

    Click here for section profiles and typical installation details.

    See QuikSpecs

    Span Table
    SkyGard maximum recommend spans between top and bottom fixings based on 600mm glazing bar centres for roof and vertical glazing.

    Section Single Glazing (mm) Double Glazing (mm)
    SKY50 2300 -
    SKY65 2750 1800
    SKY71 3300 2400
    SKY76 3950 3000

    Please note the above table is for guidance only, for although the glazing bars can be used in compliance with the requirements of BS5516 SkyGard maximum recommend spans may not always comply. If in doubt please contact our Technical Department. A more detailed table is published in the LMC Design guide.

    Glazing Width = Glazing Bar c/c – 16mm

    SkyGard is a tried and test product installed throughout the UK and abroad. Some notable projects include Waterloo, York, Southport, Carlisle and St Pancras stations, historic buildings such as Buckingham Palace, Holyrood Palace, Cliveden and many retail stores for Tesco, Sainsbury and Marks & Spencer
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    Main Contractors Building Owners
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