Resources Radon and real estate transactions in Colorado. El radon y las transacciones inmobiliarias en Colorado. Radon and the real estate professional video. Radon aware real estate professionals. Radon-resistant construction for new homes Radon control techniques in new Colorado homes. Installing radon systems in new homes video. Instalando sistemas de radón en casas nuevas. Radon-resistant new construction for builders and homebuyers.(EPA) Colorado jurisdictions requiring radon resistant new construction. Inspecting RRNC systems technical bulletin. Sealing RRNC systems technical bulletin. Radon Resistant construction for Multi-Family Buildings