ROCKWOOL Ltd, a leader in stone wool insulation, has launched the Flat Roof Overlay Board, a versatile refurbishment solution that is compatible with all common membrane types, providing contractors with a single solution suited to many applications.
Produced from volcanic rock and manufactured with high density ROCKWOOL stone wool insulation, the ROCKWOOL Flat Roof Overlay Board has been specifically designed to simplify the repair and refurbishment of flat roof systems.
Offering exceptional durability, combined with excellent dimensional stability, the 30mm board provides optimum thermal, fire and acoustic properties.
Engineered to last for the lifetime of the roof system, the ROCKWOOL Flat Roof Overlay Board is a stone wool board that offers compatibility with a wide range of membranes, including torch applied bitumen, GRP, Liquid Waterproofing, Singly Ply and EPDM. This versatility provides contractors with extra flexibility when seeking the best product for a wide range of repair and maintenance applications.
Ideal for both domestic and commercial projects, the ROCKWOOL Flat Roof Overlay Board can be installed onto existing roofs to absorb uneven surfaces, providing a higher quality, smooth flat finish.
Incredibly lightweight, the product is easy to cut, shape and install, without compromising on the performance of the roof system. It can be applied using either adhesive or mechanical fixings, and provides a strong bond between the membrane and insulation, thanks to an integral mineral fibre fleece.
The Overlay Board has been tested to achieve an A1Euroclass fire classification, providing a natural fire barrier that can reduce the spread of fire. The ROCKWOOL Flat Roof Overlay Board is also FM Approved and perfect for larger commercial and industrial roof refurbishment. Capable of achieving 0.039 W/mK lambda value the product contributes to increased thermal performance by reducing heat loss through the roof system which can help to lower energy bills.
As well as providing excellent thermal and fire resistance, the ROCKWOOL Flat Roof Overlay Board features additional acoustic benefits that will reduce unwanted noise pollution, including road traffic and impact noise, which can occur during heavy rainfall. This improved acoustic management will support a better, quieter, and healthier living or working environment.
Tested in accordance with BS EN ISO 10410, the product is proven to improve the acoustic performance of an existing flat roof system by up to 47% (dependent on membrane type).
