In recent years, to achieve carbon neutrality in housing, there is a need to expand the number of long-life quality housing that has a long-life and has low life-cycle CO2 emissions. For this reason, high durability of concrete for housing base is needed. In this study, we focused on curing sheets used in concrete for the housing bases to improve durability and investigated the effect of difference in retention period of curing sheets on carbonation. We also investigated the effect of curing sheets on the length change of concrete in comparison with elastic paint.