Enduring legacy: The ageless appeal of mastic asphalt for roofing restoration

Mastic asphalt stands as one of the construction industry’s most time-honoured materials, having earned the trust of roofers across the globe for centuries. Its unmatched durability solidifies its status as a resilient solution, capable of withstanding the test of time.

Here, we delve into why mastic asphalt remains a compelling choice and explore how this traditional solution can meet the demands for sustainable construction while offering a design life that spans more than a century.

Making the case for mastic asphalt

Known for its remarkable longevity, mastic asphalt is among the most resilient construction materials. It boasts a rich heritage that dates back nearly 200 years with its first patent, although its use predates this period significantly.

Primarily composed of bitumen, limestone filler and aggregate, mastic asphalt is applied in a heated, molten form. This allows it to be moulded into any desired shape, contour or detail, resulting in a seamless, monolithic finish.

Its exceptional durability makes mastic asphalt a preferred choice for safeguarding the integrity of the United Kingdom’s most revered buildings. For conservation purposes, mastic asphalt is favoured for refurbishing historically significant structures, as it was the original material used in their construction. In fact, National Trust, English Heritage, Historic Environment Scotland and other public and private custodians of prestigious buildings frequently specify mastic asphalt for roof refurbishments.

In recent years, IKO’s mastic asphalt solutions have been selected for high-profile renovations at iconic sites such as Glasgow Cathedral, the Tower of London, Westminster Cathedral, and St Paul’s Cathedral. These projects underscore the material’s ability to preserve architectural heritage and offer protection against the elements.

Introducing IKO Permaphalt

Despite its traditional origins, mastic asphalt has been refined to meet today’s performance requirements. Building on our heritage and expertise, IKO has developed advanced versions like IKO Permaphalt. Manufactured at our IKO Grangemill facility in Matlock, Derbyshire, IKO Permaphalt uses cutting-edge polymer technology, offering superior temperature stability, flexibility and fatigue resistance, making it ideal for refurbishment projects.

Versatility and performance

The advanced formulation of IKO Permaphalt makes it a versatile choice for various waterproofing needs, from flat roofing to water features. Its adaptability allows it to be tailored to specific project requirements. Its durable properties support heavy foot traffic and extreme conditions, as well as ensure long-lasting waterproofing integrity.

Commitment to sustainability

IKO Permaphalt is an attractive choice for green roofs and projects that prioritise sustainability. IKO sources raw materials locally and responsibly, and as our mastic asphalt products are manufactured in the UK, transportation emissions are significantly lower compared to materials sourced and shipped from abroad.

What’s more, IKO Permaphalt can be repurposed into other asphalt products. Its long service life reduces the need for frequent replacements, thereby minimising the environmental impact associated with roofing materials.

Confidence in craftsmanship

Every IKO mastic asphalt installer completes an intensive apprenticeship and achieves at least an NVQ level 2 qualification, ensuring the highest craftsmanship standards. IKO collaborates with a network of skilled installers, supported by field engineers and business development managers with extensive industry experience, offering invaluable advice and technical support.

Experience excellence with IKO

James Eden, Area Business Manager at IKO, said: “IKO Permaphalt is perfectly positioned to ensure the longevity and preservation of the UK’s most cherished buildings, proving that sometimes, traditional solutions are the best answer to contemporary challenges.

“But IKO’s offering goes beyond simply supplying advanced mastic asphalt systems. As a full-service provider, we have the agility and expertise to meet the needs of every restoration project at every stage, from specification through to sign-off. Our focus on sustainable operations provides smart solutions that lower the carbon footprint of roofing projects and ensure energy-efficient, climate-resilient historical buildings.

“No matter the size or scope, age or uniqueness of your project, you can rely on IKO for a smooth, efficient and reliable experience. When you choose IKO as your roofing partner, you choose excellence in preserving the UK’s much-loved legacy landmarks.”