Flat Roof Constructions
We investigate the different types of flat roof construction
Knowledge Article5 min read
Thermataper TT47
High performance tapered insulation for flat roofs.
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Overnight stays at the Tower Bridge Magistrates’ Court have taken on a rather different meaning since the court and adjoining police station were transformed into a luxury 193-bedroom hotel complete with a bar, restaurant, two meeting spaces and gym. Dubbed ‘The Dixon’ in reference to the original architect John Dixon Butler, the hotel forms part of Marriott’s Autograph Collection. Interior design blends influences from the building’s Edwardian past with more modern stylings.
To raise the thermal performance of the building’s flat roof, whilst also providing effective drainage, Thermataper TT47 and Thermaroof TR27 were installed.
Thermataper TT47 provided the project team with a fast-track alternative to other drainage methods, such as structural falls. The product combines high performance insulation and drainage in a single board which can be fixed with a dry installation process, avoiding the time lost waiting for wet trades to dry. The lightweight boards can also minimise the structural support requirements for the roof surface.
Thermataper TT47
Kingspan Insulation’s specialist tapered roofing service team created a carefully tailored scheme layout for the hotel roof, maximising cost efficiency whilst also ensuring the surface met the rainwater runoff and insulation requirements. The layout also simplified the installation process for the site team aided by the pre-mitred hip and valley boards supplied as part of the Kingspan Thermataper system. Thermataper TT47 and Thermaroof TR27 feature a high-performance core capable of achieving thermal conductivities as low as 0.024 W/mK.
Page Reviewed 22/07/25
Products Used in this Project
The completed hotel is expected to achieve a ‘Very Good’ rating under BREEAM 2014, with the new extension designed to achieve the 40% improvement in ADL2A required by the London Plan.
Thermaroof TR27
High performance flat roof insulation for adhered and bonded systems
