Untersuchungen hinsichtlich der Dauerhaftigkeit von Wärmedämmverbundsystemen (WDVS) mit Holzfaserdämmplatten

Experimental analysis of the durability of external thermal insulation compound systems (ETICS) using wood fibre insulating boards.

The insulation of external thermal insulation compound systems has to be protected by the rendering system. The failure of the rendering system, e.g. due to the loss of bonding strength to the insulation can lead to a failure of the hole system. Forecasts of the durability should be done by using test results of tensile bond strength from samples which were stressed by artificial weathering. Boards with a relatively high strength lose nearly 25 % of their strength and continue in a while at that level. Boards with a relatively low strength do not lose there strength any more.