LGS roof trusses

What it is

LGS trusses are triangulated frames of C chords and webs joined with self-drilling screws. They are light enough to lift by hand or small crane, perfectly straight and immune to termites – the reason they are widely used on new roofs and to re-roof concrete buildings in tropical climates.

Design

Trusses are designed for dead load, roofing, ceiling, wind uplift and – where relevant – solar panels and snow, with tie-downs to the wall top track or a concrete ring beam.

• Roofing: metal sheets, concrete or clay tiles on top-hat battens
• Ceiling: furring channels or battens under the bottom chord
• Tie-downs: brackets and straps to walls or ring beams
• Bracing: roof bracing straps and binders