STEP 1: Clear the topsoil, take levels and lay compacted hardcore 150mm deep. Radon sump and pipework are laid at this stage. STEP 2: Place corners in position and set level. STEP 3: Continue placement of ring beam profiles. Trim profiles as necessary to achieve a tight fit. STEP 4: Place three layers of floor insulation sheets over the remaining foundation. Overlap sheets to achieve continuity of insulation. Secure with pins provided. STEP 5: Install steel through the ring beam profiles and place steel mesh reinforcement according to our structural engineer’s design. (Supplied). STEP 6: Insulated foundation system is now complete and ready to take 100mm concrete.