Production procedure The total number of units to be made is not excesive, only 35, so the treatment of the termal effects will preval over the production velocity. For garanting the absence of craking in the blocks it will be neccesary to maintain the external surfaces in thermal isolation, in order to reduce the temperature gradient inside the block within the first 96 hours. It will be possible to make five blocks per week because there will be two casts, as it has been showed in the activities program. For the purpouse above mentioned, the metallic cast will be revested in the inside with wood panels, laying a plastic film between the wood and the metallic surface as showed in the figure.