The Dominican Construction and Housing Promotion Association (Acroprovi) is demanding that cement and metal bar producers lower prices. ACROPROVI president Jaime Gonzalez says that the price increases of 5% for metal bars and 20% for cement are unjustified since fuel prices have gone down 30%, reducing the cost to produce cement. He added that increases in material costs would eventually cause a 5% to 8% increase in the price of housing. He said housing sales have decreased 70% since January.