Renacon AAC Siporex Block are used as load-bearing and non load-bearing walls and as thermally insulating roof tiles in addition to being used as Hourdi blocks or infills for ribbed slab. They are produced with very precise dimensions with slim tolerance of ± 3 mm for thickness and width, therefore they are able to be laid by thin-bed mortar (Siporex glue) with a maximum of 3 mm thick mortar joint. This results to a high quality wall structure with uniform thermal insulation and fast installation.