This European Standard specifies the characteristics and performance of thermal/acoustic insulation composite panels made of an insulating material laminated to gypsum plasterboards for which the main intended use is the internal insulation (thermal and/or acoustic) of walls. They are attached with adhesives or by mechanical fixings to vertical solid backgrounds and by mechanical fixings to wood or metal framing with the plasterboard face exposed. The method of fixing and jointing shall ensure that the insulating material is not exposed in its normal applicationThis European Standard covers the following performances characteristics: reaction to fire, fire