The lake-facing elevation is a 9-metre run of W50 TB sliding doors, in three two-panel sets. Each panel is 2.7m tall, double-glazed with low-E argon, with the polyurethane thermal break running uninterrupted around every section. We ran a continuous sill detail so the threshold reads as a single line from end to end.
The site is in an Extra-High wind zone. Independent wind-load testing was required for both the sliding panels and the upper-floor casements. We designed the corner casement junctions with a stiffening member behind the mullion — invisible from outside, but the difference between a frame that flexes and one that doesn’t when 100km/h hits the glass.
Iron Bronze finish was specified to age into the schist landscape. The four-stage corrosion treatment — grit blast, zinc primer, intermediate, top coat — should hold colour for twenty years before re-finishing.
