Preserving the past, protecting the future with mastic asphalt.

Heritage and listed buildings demand the highest-quality construction materials to ensure they are protected for future generations, while respecting their unique legacy. These historical buildings draw in millions of visitors from across the globe, contributing to important educational, economic and social benefits.

Mastic asphalt has been a tried, tested and trusted choice in the roofing industry for centuries. Because of its durability, it provides a long and robust design life that meets growing sustainable demands.

Composed primarily of bitumen, limestone filler and aggregate, IKO Permaphalt, our mastic asphalt roofing solution, is applied in a molten state, which allows it to be moulded to fit any shape, contour or detail, creating a seamless, monolithic finish.

Its appealing aesthetic, coupled with its long-term durability, makes mastic asphalt the go-to choice for protecting the UK’s most historically significant buildings – frequently specified by the National Trust and English Heritage, among others.

We’re proud that IKO Permaphalt mastic asphalt solutions have been specified by high-profile projects, including Battersea Power Station, the Tower of London, Westminster Cathedral, and St Paul’s Cathedral.