Superbonus and Ape, conventional certificate also for the single-family

Article 119 of Legislative Decree 34/2020 provides as an essential requirement for the use of the superecobonus the double jump of energy class, or the achievement of energy class A4 if starting from class A3. The effectiveness of the intervention must be certified through a double energy performance certificate: an Ape must be produced based on the state of the building before the start of the works, and an Ape certifying the energy performance guaranteed by the application of …