An effective waterproofing system was required for this basement level lift pit at a new build site in Suffolk.
It was important that the waterproofing system was external, on the outside of the structure. This meant that it was not necessary to use a loading slab internally for the heavy duty fixing bolts for the lift mechanism to protect an internal waterproofing barrier that was originally specified.
Removing this layer reduced cost on the build by reducing the required excavation and slab thickness.