Flat rooftop with railings under a cloudy sky.

Imperial War Museum, Duxford – Specialist Tapered Roof Design

A specialist tapered roof design was required for the iconic Imperial War Museum at Duxford Airfield. Recticel's flat roofing tapered insulation division - Gradient, working in collaboration with Langley, created a bespoke tapered solution to ensure effective drainage, long‑term performance and a reliable flat roofing system for this landmark site.

Rooftop with metal pipes, industrial building, overcast sky in the background.
Flat rooftop with HVAC units and gray sky background.
Flat rooftop with skylights and HVAC units under overcast sky.
Black roofing shingle with white chalk line and detached tab.
Two construction workers in high-visibility clothing stand in front of a building site.

Site characteristics:

New Tapered roof design for the refurbishment of Museum flat roof.

  • Roof area: 896m2
  • Work carried out March 2026
  • Insulation: Parafoam Ultra F - Tapered Scheme
  • Warm Roof: Single Layer
  • Flat Roofing Solutions: Langley

Challenge and Recticel solution

Challenge

To support the construction of a reliable flat roofing solution for the Imperial War Museum, while achieving a demanding thermal performance target of 0.18 W/m²K as part of the overall roof design.

Recticel solution

Recticel's flat roofing tapered insulation division - Gradient, working in collaboration with Langley designed a single‑layer tapered roofing scheme. The solution provided the required thermal performance while supporting effective water drainage and a robust, long‑term flat roof build‑up.

Want to know more about how Tapered roofing can be used on your product

Contact Recticel's flat roofing tapered insulation division - Gradient

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