Once the dirt was level and firm, we had to fit the DPM, which also acts as a radon barrier. We purchased the Visqueen Radon product for this. What fun this is, you have to use two types of sticky tape to join the DPM into the DPC. I concluded that building sites and sticky tape do not mix. The dust rurins the stick.

Levelling the floor, and putting down the sand to stop any stones puncturing the DPM

Finished - ready for the concrete