Syphonic drainage specialists Fullflow completed the design, manufacture and installation of roof drainage systems on five buildings at London Heathrow’s new Terminal 5.
The largest of the five buildings’ is the T5 Rebar Plant which has a total roof area of 16,300m² and has been designed to deal with a maximum rainfall intensity of 210mm/hr and was drained using just 2 downpipes. The second largest building, the CHSS Building has a total roof area of 3,680m² and has been designed to deal with a maximum rainfall intensity of 108mm/hr. This building was drained using a total of 10 asphalt outlets and just 2 downpipes. Typically a Fullflow syphonic system uses up to 80% less downpipes, reduces installation time and ground works, offers greater design flexibility and can drain roofs up to 8 times faster than gravity system alternatives.
Hathaway's T5 Project Director Ian Coverdale commented:
"Fullflow are an established part of the Hathaway supply chain and in turn became a valuable member of the T5B team from definition stage through to completion of the syphonic drainage system. The demanding logistical challenges facing Fullflow on this project were dealt with effectively resulting in a successful project delivery to BAA."
The EAA Building, the SAA Building and the DIF Building have a total combined roof area of 5,082m², all of which were drained using a Fullflow syphonic rainwater drainage system.
Construction of the new multi million pound terminal began in September 2002 and was opened in April 2008 with the second phase opening in 2011. When completed T5 will be one of the largest single-span structures in the UK.
The majority of Terminal 5 is made of steel and glass, making for stunning views of the airfield from the airport. The new terminal will be one of the world’s most exciting airport terminals and will be able to handle an extra 30 million passengers a year. This will take Heathrow’s total number of passengers to around 90 million making London Heathrow the world’s busiest airport.
Fullflow boasts an unparalleled level of experience in the field of syphonic drainage having successfully installed over 30,000 systems across the world. Including other prestigious Airports such as Barajas Airport in Madrid, one of the largest European construction projects of the decade and Chek Lap Kok Airport in Honk Kong, which has one of the largest roof areas in the world.
Recent completed projects include the refurbishment of the Grade 1 listed St Pancras Railway Station in central London, the new grandstand and conference centre as part of the £32 million refurbishment of Doncaster Racecourse and Athlone Town Centre development in Ireland.
