Mayplas’ Thermal Soffit, just launched in March, has now achieved an A2 Reaction to Fire classification and has been renamed ‘Thermafire A2 Soffit’. The product is part of a range of insulation Mayplas, a specialist in passive fire protection, acoustic and thermal insulation, offers the housebuilding and construction industries.
Confirmed following testing as Reaction to Fire A2-s1,d0 according to BS EN 13501-1, the limited combustibility slab provides thermal and acoustic insulation within the soffit at the party wall junction and can be used in other construction locations.
Available in various densities and in thicknesses of 100mm and 150mm, permitting the design of thermal performance to suit the construction, the Mayplas Thermafire A2 Soffit facilitates thermal resistance values to Approved Document L. It is suitable for both masonry and timber frame constructions.
It also provides resistance to the passage of sound, synonymous with stone mineral wool insulation, according to Approved Document E.
Standard 600mm x 600mm slabs can be cut to size on site to ensure an accurate cut to fill the full soffit void at the party wall. The soffit can be secured through the product to the timber truss or masonry block using the correct length of fixing for the width of the product. Mayplas can supply appropriate fixings.
In terms of application, the Thermafire A2 Soffit is valid for any wooden-based substrate* and is also valid with or without a cavity to the opposite side.
“Achieving an A2-s1, d0 Reaction to Fire classification for our Thermafire soffit product is proving very useful,” comments Michael Hunter, Mayplas’ Technical Director. “The test results open up new applications which we look forward to exploring with our housebuilder customers and with the construction industry more broadly.”
The Thermafire A2 Soffit is foil faced to provide an effective vapour barrier and the foil also prevents fibre migration.
A technical data sheet* is available at: www.mayplas.co.uk/housebuilding-solutions
Mayplas is a member of the Association for Specialist Fire Protection and the Structural Timber Association. Mayplas manufactures a range of fire, acoustic and thermal insulation products at its facility in Bury, Greater Manchester, well located for UK-wide distribution. Mayplas can accommodate virtually any insulation specification, working with architects, contractors, developers, distributors and merchants. Mayplas is part of the Performance Technology Group.
www.mayplas.co.uk
