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Lonsdale Roofing

SkyGard Traditional Patent Glazing Bars


Patent 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. The simple design means it is suitable for both new build or refurbishment including heritage buildings where a traditional patent glazing system is required. Easy to install, SkyGard glazing bars offer 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.​

Span Table

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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What are PlasGard glazing bars used for?

PlasGard glazing bars are suitable for single glazing with glass from 6mm to 25mm and are used to divide a single pane of glass into smaller panes. They help to enhance the rigidity and structural integrity of your windows and make your windows look very aesthetically pleasing. 

What are continuous pressure beads?

Continuous pressure beads are aluminium beads that are fitted either side of the glazing bar to securely clamp the glass of the patent glazing together. 

What is BS5516?

BS5516 is the set of standards that apply to patent glazing and sloping glazing for buildings. A rooflight must adhere to these standards to be deemed safe.