Draining module unit incorporates draining pipe component with first and second ends and arranged in building part with water-permeable structure

摘要

The draining module unit (1) incorporates a draining pipe component with first and second ends and arranged in a building part (7) with a water-permeable structure. The draining pipe component is an integrated part of the building part and the water-permeable structure part, which is prevented from absorbing water, encloses air.