What is the Passive Slab?

KORE in conjunction with Viking House bring you The Passive Slab. The Passive Slab is an Insulated Foundation System that is PassiveHaus approved to deliver the lowest U-value available on the market and eliminates the critical wall to floor cold bridge. Expanded Polystyrene is used to wrap the foundation of the building ensuring there is no thermal break between the wall and the foundation. The structural strength of the Passive Slab results from the combination of Expanded Polystyrene (EPS 300), concrete and steel. The Passive Slab is suitable for use when building a KORE Insulated Concrete Formwork, Traditional Block, and a Timber Frame house.

The Passive Slab EPS element is specifically designed and cut to suit the building type for which it will be installed. The L element can take loads up to 140kn/m (14 tonnes/linear meter) and is suitable for light weight construction methods. The G Element can take loads up to 350kn/m (35 tonnes/linear meter) and is suitable for medium to heavy weight construction methods.

Heavy Internal laods can be easily accomadated onto the insulated foundation by thickening the slab to 200mm and by installing EPS 300 under the thickened slab area. The Passive Slab insulated raft foundation and waffle slab solutions are suitable for soft ground conditions as the system allows the weight of the house to be transfered throughout the slab.

Download KORE Passive Slab Brochure