Mastic Asphalt

Mastic asphalt has a long and successful history covering a wide range of uses as a waterproofing medium for roofs, basements and foundations, and as a surfacing material for floors and paving. The product comprises suitable graded aggregates bound together with an asphaltic cement (primarily refined bitumens) to produce a dense voidless material. It cannot be compacted and is spread rather than rolled.

One of the most traditional forms of waterproofing to:

• Roofs - Balconies and Patios
• Floors - Factories, Sports Halls, Post Offices, Hospitals or as a base for decorative finishes.
• Tanking - To lift shafts, sumps and boiler houses.
• Paving - For roof top car parks.

PAVING

Mastic asphalt paving is more resistant to wear and deformation than hot rolled asphalt and can be used to surface Walkways, Car Parks and HGV Service Decks as well as heavily stressed areas such as loading bays. Although commonly used externally, mastic asphalt paving is an ideal internal surfacing material for unheated buildings.

FLOORING

Flooring mastic asphalts are manufactured to achieve performance characteristics from light domestic use through to heavy industrial duty and can be a self finished flooring or an underlay for tiles, carpeting, etc. A mastic asphalt floor provides a hard wearing, durable surface which will resist the passage of dampness and which can be brought into service as soon as it has cooled to ambient temperature. The finish to mastic asphalt flooring is normally laid with a matt or natural float finish. Red variants are available throughout the Floorstar range.

ROOFING

Mastic asphalt can be applied to form a continuous waterproof covering over flat, sloped or curved surfaces and can be worked round pipes, roof lights and other projections. It can be laid on most types of rigid sub-structure such as concrete, pre-cast concrete deck units, timber boarding, metal decking and other proprietary decking units. thermal insulation materials can easily be laid as part of a mastic asphalt specification to give any required U-value. Treatments applied to asphalt can provide a surface suitable for traffic, increase solar reflectivity and provide a decorative finish.

TANKING

Mastic asphalt, when used on underground structures, provides a continuous waterproof lining or 'tanking' to walls, floors and foundations, constructed in direct contact with the earth. In addition mastic asphalt is used for lining structures in water and sewage treatment works. When fully confined it will provide an effective barrier to the transmission of water from the ground for the design life of the structure in which it is incorporated. Acid resisting mastic asphalt tanking can also be used to line bund walls and emergency catchment areas where corrosive liquids are involved.