Thermal insulation is the process of providing insulating material to reduce heat transfer between materials that are in thermal contact. It is done with Rockwool with an aluminium base or Kingspan insulation material. Cavity barriers such as Lamatherm (are manufactured by Saudi Rockwool and Fujairah Rockwool) are designed and installed within the ceilings and roofs of the structures to keep fires at bay and to prevent the leapfrog effect of fire. It helps in the spread of heat from one slab to another slab. ideal for reducing the cost of air-conditioning and making spaces more comfortable The flow of heat is an inevitable process.