The “Trespa Pura NFC^®– Flush siding” and “Trespa Pura NFC^® – Lap siding” kits, for ventilated external wall claddings, are composed by sidings of high-pressure decorative laminates fire-resistant for exterior application produced by TRESPA INTERNATIONAL B.V. The sidings are mechanically fixed, by clips, screw or rivets, to a subframe of wood or aluminium.

“Trespa Pura NFC^®– Flush siding” kit is classified as family C and “Trespa Pura NFC^® – Lap siding” as family E according to the EAD 090062-00-0404: Kits for external wall claddings mechanically fixed. They are non-load-bearing construction elements. They do not contribute to the stability of the structure on which are installed, neither to ensure the airtightness of the building structure, but they can contribute to durability of the works by providing enhanced protection from the effect of weathering.

The subframe is fixed to the external wall of new or existing buildings (retrofit). An insulation layer is usually set on the external wall.