Heraklith Tektalan Ais a wood wool cement panel combined with a rock mineral wool insulation. This wood wool board offers a fire resistance of 1minutes and Afire classification. It provides excellent thermal insulation, fire protection and sound absorption and is quick and simple to install. Sound absorption: DIN EN ISO 3w according to DIN EN ISO 116(mm) NRC according to ASTM C 4(mm) suspended with acoustic fleece. You can use Heraklith Wood Wool insulation boards in a variety of applications, such as ceilings, external walls, loft floors. The solution was to use Heraklith Tektalan A2-E two-layer Wood Wool insulation board which has a mineral-bonded non-flammable Wood Wool cover layer. Heraklith Tektalan Ais the only wood wool panel that can act as a heat shield thanks to the layered structure and the use of an interchangeable recess, which ensures the longer integrity of the structure in the event of fire. Building material class: A2-s daccording to EN 13501-1. In addition this Aw...