Insulated ducting, is designed to protect water pipes from frost outside the thermal envelope of a building, where water pipes cannot be laid at the prescribed depth (>750mm + <1350mm)
For either standard PE or barrier pipe of either 25 or 32mm diameter.
e.g. over rock, foundations, ditches, tree roots or overland for “temporary” services.
SHalloduct has been designed to not only comply with, but to exceed standards laid down by BS5422 and within Water Regulation (4) including “extreme” weather conditions.