The existence of a gas evolving electrode in industrial electrolysis cells may greatly increase the cell voltage due to the additional IR drop caused by the gas bubbles. The main area of expanded metal electrodes as they are used in the industry consists of inclined planes. It was therefore considered of interest to study the influence of the inclination angle on the IR drop caused by the gas layer at an inclined hydrogen evolving electrode. Evaluation of IR drop measurements at various current densities shows that slightly up‐facing oriented electrodes have a gas layer of an optimum state in terms of a minimum IR drop. A simple model of the motion of gas bubbles near the electrode surface allows the dependence of the IR drop on the inclination angle to be calculated. Calculations based on this model show good agreement with experimental results.