The global temperatures have shown the tendency of global warming and climate change continues, that is why, the need is to search alternatives that are effective in the thermic reinforcement of the envelope of the dwelling. In consequence, the objective of the present investigation was to analyze the thermal behavior of a material that promises thermal lag qualities effective in comparison to the traditional finishes. This text was worked under a monitoring scheme and analysis of the results through a unit difference. The results indicate that the material of finishes studied favors the thermal lag between superficial temperatures and stability in thermal oscillation from the interior side of the wall and the roof analized. This article works as a divulgation and invitation to other investigations that share the objective to analyze materials that favor the thermal lag and energetic efficiency in the envelopes of the buildings.