150 Cheapside

Bauder Hot Melt structural waterproofing system


150 Cheapside is a new-build office development in the City of London, offering some 182,740 square foot of office space on eight floors. Overlooking St. Paul’s Cathedral, this landmark construction has recently gained an ‘Excellent’ BREEAM rating.

Bauder Building Board

Project: 150 Cheapside
Location: London
Roof Area: 2000m2
Investor: St Martin’s Property Investments
Architect: Michael Auckett Architects
Contractor: Knight Asphalt

The specification

The client, St. Martins Property Investments, opted to use the Bauder extensive green roof finish, combined with Bauder’s Bakor waterproofing build up - a durable hot melt system installed at a comparatively low cost compared to traditional felt solutions.

The result

With both the waterproofing and the sedum blanket finish being sourced from one supplier, complete compatibility was guaranteed providing the client with an ‘immediate’ green roof finish and waterproofing build up with a life expectancy in line with that of the structure.

System installed

Bauder Bakor 790-11


1 BauderPLANT E 42

Torch-on root-resistant capping sheet green

2 790-11 with reinforcement layer

Hot melt rubberised bitumen asphalt with a percentage of post-consumer recycled materials that infills and fully bonds to all minor deviations in the deck.

3 Deck

Primed concrete.