How to protect a monolithic slab from frost without the 4′ insulation in front of it

Hi GBA,I am proposing a one storey extension to an existing building. I am opting for a monolithic slab to limit the amount of excavation.  the propose extension has to… Hi GBA,I am proposing a one storey extension to an existing building. I am opting for a monolithic slab to limit the amount of excavation.  the propose extension has to…Read MoreGreenBuildingAdvisor