Objective. To develop a job-task-exposure matrix (METE) specific to the construction sector and to evaluate its performance. Method. The METE, named Batimex, was developed a priori by experts to assess respiratory exposure to respirable cement dust and dermal exposure to cement specifically for the construction sector. This matrix was applied to a sample of 402 subjects who were surveyed via questionnaire about their most recent workweek during a cross-sectional study. The questionnaires were evaluated by an expert familiar with the construction sector. The methods were compared using sensitivity and specificity analyses and by calculating the degree of agreement. Results. Batimex’s performance is acceptable for combinations of occupation and sector of activity by task (Sn = 71 and Sp = 61 for inhalation exposure, and Sn = 73 and Sp = 63 for dermal exposure). The proportion of subjects classified as exposed based on individual expert assessment is not too far from the probability estimated by Batimex for the lowest probabilities. Better results for specificity are obtained by considering as exposed only those subjects with a reliability index greater than 2 and a probability greater than 50%. Conclusions. Modifications have been introduced into Batimex to account for exposures omitted by the matrix. METE could be used with a high degree of confidence for epidemiological studies in the construction sector.