John Sisk & Son Ltd

207-211 Old Street London.

Architect: Afford Hall Monaghan Morris Architects.

207-211 Old Street reinvents a collection of underperforming buildings that were constructed in the 1960s and subsequently overclad in the 1980s into a  mix of workspace, ground floor retail/restaurants and a new public realm.

Alltech have secured the roofing works on the project and this comprises a balance of bio-diverse and green roof construction from main roof areas projecting down to the first floor. The entire roof build up is based on the Hydrotech inverted roofing system achieving a U Value 0.20 W/m2K with rigid XPS insulation. Alltech are also providing mansafe systems on the scheme.