Patent Glazing & Roof Lights Quotes
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
SpanGard Lanterns & Skylights
SkyGard Glazing Bars
PlasGard Glazing Bars
ThermGard Glazing Bars
SpanGard Lanterns & Skylights
GlazaTherm Ventilators
Solar Panels

SpanGard Lanterns & Skylights


SpanGard self-supporting aluminium lanterns and skylights are manufactured from the ThermGard patent glazing system providing excellent Uvalue and air-tightness performance. Each rooflight is pre-built in our factory and fully fabricated ready for immediate installation on site. The integrated aluminium cill, ridge, hip & eaves members enables roof pitches from 15° to 45° and in some instances beyond, subject to overall width dimensions.

"...your products have stood the test of time and lots and lots of rain" – Mr Sat Jandu, Architect at The British Museum

  • Fully fabricated, ready for immediate installation thus reducing labour time
  • Step by step, easy to follow instructions to eliminate mistakes
  • Suitable for single glazing, double glazed units or polycarbonate
  • Excellent thermal insulation and air-permeability performance for compliance with building
    regulations
  • Neat, slimline sections and invisible fixings.
  • Able to span upto 6m wide by infinite length without additional supporting steelwork, thus reducing
    costs & liaison between trades on site.
  • Hipped, gable ended, pyramids, hexagons, octagons & polygons available and irregular shapes a
    speciality


  • Click here for Fastrack CAD Download typical installation details.

    Click here for section profiles and typical installation details.

    See QuikSpecs

    For guidance with specification, please contact our Technical Department Tel 020 8801 4221

    SpanGard is a tried and tested product installed at some of the most important and historic buildings throughout the UK, including The British Museum, Windsor Castle, 10 Downing Street & Gateway Community Centre, Thurrock.

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