The Harborne Glass Link
Project Type: Rear Extension & Structural Remodel
Client: Private Residential
Status: Completed 2023
Technical Specifications:
Total Floor Area Added: 48m² (Single Storey)
Structure: Bespoke steel portal frame (3.5 tonnes) allowing for the complete removal of the original rear load-bearing wall.
Glazing: Structural silicon-bonded glass link (frameless) with solar-control coating. Slim-profile aluminium bi-fold doors (Schüco system).
Foundations: Deep strip foundations with localized piling to bridge existing Victorian drains.
Thermal Performance: U-Values achieved: 0.16 W/m²K (Roof), 0.18 W/m²K (Walls).
Flooring: Power-floated polished concrete with wet underfloor heating (zoned system).
Project Value: £140,000 - £160,000
Timeline: 28 Weeks
STARK Insight:
The primary challenge was supporting the upper two stories of the Victorian masonry while installing the open-corner steelwork. We utilized temporary propping and a synchronized steel installation to ensure zero movement in the existing structure.