EPS foam is the most economical material to choose when insulating garage roof and floor areas. In a recent case study sent in by a satisfied customer to the Universal Foam Products website, EPS blocks were used as a thermal break underneath the slab for a new garage and outbuilding. Here EPS blocks were supplied to give a particular overall compressive strength throughout the floor. For garage roofs, lightweight eps panels can be easily cut to fit and lifted into place in an existing or new garage roof space. Take a look at the garage flooring being put into place here https://www.universalconstructionfoam.com/projects/eps-foam-used-to-insulate-garage-floor/
