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Construction
All our roof lanterns are constructed from engineered hardwood, with our unique external aluminium weather cappings for elegance and long life.  The cappings protect the wood and clamp down the glass, making them ultra-low maintenance.  As standard we also provide aluminium enclosures for the lower ends of the glazing panels – helping to prevent UV light from breaking down the unit's seal.  And for aesthetics and additional weather protection we fit an aluminium skirt (click to see drawing) around the perimeter of each lantern.

The principal construction material is sapele, an FSC-certified sustainable hardwood.  This has excellent properties – it is durable and hard-wearing, offers superb paint adhesion, and is resistant to both rot and fungal attack.  For even greater strength and stability we use engineered (laminated) sapele.  Screw holes are pre-drilled, and no filling is required.  All screws and cabling, etc. are hidden.

Assembly
Our roof lanterns feature delicately profiled rafters and hips, spanning between the roof plate/sill and the ridge beam.  Octagonal bosses are fitted at the convergence of ridge, hip and rafter assemblies (click to see bosses drawings).  The thumbnail drawings under the first two tabs below show the arrangement of rafters in our standard lanterns, and each of these can be clicked/tapped to reveal the full drawing set.

Roof pitches are typically 25°, and rainwater discharge is direct to the perimeter flat roof weathering surface.  Conduit channels with flush-fitting access covers are incorporated to accommodate concealed electrical cabling.  On larger models we typically fit one or more single- or double-pane electric vents as optional extras.