Protecting heritage buildings for 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. Thanks to its exceptional durability, it provides a long and robust design life that meets growing sustainable demands.
Composed primarily of bitumen, limestone filler and aggregate, mastic asphalt 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’s 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.
Preserve history with IKO Permaphalt
Designed to meet modern technological standards, IKO’s Permaphalt uses advanced polymer technology for superior temperature stability, flexibility and fatigue resistance: ideal for roofing restoration projects.
Leveraging our heritage and expertise, it’s manufactured at our IKO Grangemill site in Derbyshire.
Why choose mastic asphalt?
- Proven track record for long-term durability.
- Excellent environmental credentials.
- Unbeatable waterproofing versatility.
IKO in action: Keble College
Keble College, one of the largest and most prestigious colleges at the University of Oxford, sought to renovate the roof of its student bar. To ensure aesthetic continuity, the college opted to use mastic asphalt, which is consistent with the material used on the roof previously.
Find out how the asphalt was painted with white solar paint to reflect sunlight onto the higher-level windows by reading our case study.
The project’s environmental credentials were also enhanced through the implementation of a green roof, whilst maintaining the use of traditional mastic asphalt.
Building a sustainable future: IKO’s ESG strategy
At IKO, we’re committed to ensuring the longevity of historic buildings, while following Environmental, Social and Governance (ESG) principles on sustainable practices, transparency and accountability.
We’re always striving to reduce the environmental impact of our manufacturing processes and have already made huge progress towards achieving our Science-Based Targets (SBTs).
By 2030, we aim to reduce scope 1 and 2 emissions by 42% and achieve net zero emissions with a 95% reduction in scope 1, 2 and 3 emissions by 2050.
Choosing mastic asphalt for your heritage projects can help meet your sustainability goals through:
- Locally sourced raw materials.
- Less waste and minimal packaging.
- Improved pollution control as less heat and energy used.
- Production efficiencies.
- UK-based manufacturing.
With better collaboration and transparency across the supply chain, together we can reduce our collective carbon footprint and drive sustainable change.
Speak to an expert
Want to find out how IKO can help with your next heritage project? Book a meeting with an IKO expert!
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