Tower Hill Protected Staircase
Location: Tower Hill Underground Station, London, United Kingdom
Tower Hill underground station is the gateway to the Tower of London, one of the Capital's most famous and visited tourist attractions. The Firemac FM Blue double-skinned insulated wall, tested to BS476-22:1987 has demonstrated fire resistance periods up to four hours for both integrity and insulation, and integrity only from fire attack from either face, for up to 15 m heights and unlimited widths.