ROOFING SYSTEMS
Lewisham hospital roof has a clean bill of health
Stuart Hicks, UK Marketing manager at cold-applied liquid waterproofing specialist, Kemper System, explains the challenges surrounding the roof renovation of a busy London hospital.
Lewisham Hospital is an acute district general hospital in south-east London run by Lewisham and Greenwich NHS Trust.
Lewisham Hospital is an acute district general hospital run by Lewisham and Greenwich NHS Trust in south-east London. The history of the site where the current building stands dates back to 1612, when it became a workhouse for the sick and poor in the area. When the Lewisham Workhouse became overcrowded, a new building was erected in 1817 to meet demand. A separate infirmary was then built in 1892 – this building now houses the hospital’s pathology department at the site today. Following the formation of the National Health Service (NHS) in 1948, the hospital continued to expand, with new buildings opening in the 1950s and 1960s. Today, Lewisham Hospital offers a wide range of specialist services, and gained university status in 1997.
The hospital has served as a vital resource for the community for many years, and the Lewisham and Greenwich NHS Trust realised some of its buildings were in need of repair.
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The existing felt roof above the main building and the hospital’s outpatient department had failed, and Kemper System’s Kemperol 2K-PUR system was selected to provide a durable and long- lasting waterproofing solution. My aim in this article will be to look at why Kemper System’s cold-applied liquid
waterproofing was specified to refurbish the roof area, and the installation challenges faced by contractors, Noble House Services (UK).
Refurbishment specification Because of the nature of the building it was vital to ensure that any disruption or nuisance to staff and patients in the unit or the surrounding wards was minimised during the roofing replacement work. Hundreds, if not thousands of staff, patients, and visitors, use the main building and outpatient department each day, so the nature of the product specified to repair the existing roof area had to be
Hundreds, if not thousands of staff, patients, and visitors, use the main building and outpatient department each day, so the nature of the product specified to repair the existing roof area had to be carefully considered
carefully considered. After a consultation period with contractors and the technical department at Kemper System, the Estates team at Lewisham Hospital decided to specify Kemper System’s Kemperol 2K-PUR – a completely odourless cold-applied solution able to easily refurbish the 1,600 m2 needed repair.
roof area that
Time and cost savings were taken into consideration during specification. Kemperol 2K-PUR is a wet-on-wet system which offers quicker possession times and less disruption on site, as operatives do not have to wait until the first application of resin has dried before the final layer is installed. The benefit of the system is that it removes some of the application issues and roof failures associated with multiple coatings and uneven layer thickness. Quality manufacturers like Kemper System also offer a system materials warranty for clients, developed to build the confidence of the contractor, specifier, and end-client.
Prior product and application training
Prior to the refurbishment works starting, Noble House Services (UK) Ltd undertook thorough product and application training at the Kemper System HQ in Warrington before installing Kemper System’s Kemperol 2K-PUR to familiarise
October 2018 Health Estate Journal 99
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