This measure includes an inspection and further reconstruction (or restoration) of the roofing system in order to remove the gaps and other defects which may cause rainfall or water penetration on the surface of attic floor insulation systems. Water penetration in the insulation layer significantly reduces its thermal resistance and leads to its damage and the complete loss of the properties. In reconstructing pitched roofs, it is possible to replace partially or completely the roof frame structures and roofing materials. In reconstructing flat roofs on the basis of floor slabs, it is possible to replace the roofing and insulation materials.

The cost of the reconstruction may be up to UAH 21,000 per m2 of roofing.