Materials obtained from the demolition of a building, and those collected for the purpose of erecting a new building, are movables until they have been made use of in erecting a new building.\nBut if materials be separated from a house or other edifice, for the sole purpose of making repairs and additions in the said house or edifice, and with the intention of replacing them, they preserve the nature of immovables and are considered as such.\nHistory —Civil Code, 1930, § 272.
Puerto Rico Legal Code