Trasdosado independiente

New tests of independent wall lining with Tecbor® Boards

Actualizado a fecha: 7 February, 2019

When we carry out a fire sectorization or a fire-resistant division, sometimes we do not need it to be resistant in both directions. This happens, for example, when carrying out the fire protection of an adjacent tin wall without EI-120 fire resistance which is not accessible to us from the other side. To legalize the activity, we must protect our neighbour’s facilities from a fire occurred on our side, but it is not necessarily mandatory in reverse, whether because the neighbour has been performing its activity many years (before the regulation came into force) or the facilities are not occupied yet. For these situations, let’s see two solutions with the independent wall lining EI-120:

Independent wall lining EI-120 with Tecbor® + rock wool

wall-lining 12 mm


Independent wall lining EI-120 with Tecbor® (without rock wool)


Both solutions are made with Tecbor® Boards. The first option is made of two 12 mm Tecbor® Boards. The second one, with two 15 mm Tecbor® Boards + 1 laminated plasterboard of 13 mm, which will give a better finish and joint treatment.

A common error when carrying out a fire protection solution is to consider that attaching one of those EI-120 systems to a metallic structure will guarantee an R load bearing capacity. It is not correct. When these systems are tested, they are made under the UNE EN 1364-1 standard: Fire resistance tests of non-bearing elements. Part 1: Walls. The metallic structure protection tests are carried out under the UNE EN 13381-4 standard: Test methods to determine the contribution to fire resistance of structural elements. Part 4: Passive protection applied to steel elements. This latter type of test is performed on a series of standardized steel pillars and beams subjected to structural loads, while the wall lining tests do not bear loads more than their own weight.