According to UFJR dean Roberto Leher, the facade and the exterior of the National Museum is to be preserved in the reconstruction works, but the building could be different. The recovery of the building will take into account a new concept of architecture. The cost would still depend on the concept of the museum. Technicians focus are on 3D modeling and a term of reference. New materials with low-carbon, energy-less, environmentally friendly will be used because it is a science museum. IPHAN has endorsed (since the property is overturned) to do the reconstruction taking this model into account. The new project could be with high roof space or with more slabs, depending the approval of R$100 million or € 22,610,000,00 in the budget of 2019.