Portland Stone has been used as a building material for centuries and these buildings stand as a testament to the stone suitability and durability in this type of application.
Many of London's historical buildings are solid Portland Stone masonry construction or a combination of brick and Portland stone. Probably the most notable is St Paul's Cathedral which is constructed almost entirely over Portland Stone and was completed in just over 30 years.
Civil Engineering projects have always demanded stone and Portland stone's excellent physical properties has encouraged its use in the harshest of environment. Castles along the south coast have utilised the stone, Hurst Castle, Portland and Rufus Castle and the Roach stone has been used in the most extreme of environments including The Cobb at Lyme Regis.
Today due to cost and practicalities, solid masonry has largely been replaced by cladding, but notable exceptions still can be seen. Eric Parry’s landmark building at 30 Finsbury Square uses solid stone. The building was constructed with approximately 370 massive post-tensioned stone structural columns. The columns were typically 1000mm x 400mm x 3300mm and were created out of 4 pieces of cut Bowers Basebed with ± 1.5mm tolerances. These were then assembled without vertical joints and tensioned off site by Szerelmey Limited with each column taking approximately two weeks to complete.
Albion Stone provide recognised specifications equivalent to the industry standard: NBS specification. Available free issue assisting design teams compile RIBA Stage E & F documentation ready for tender.
For advice or assistance, please feel free to contact us.