This specification sheet is regulating the technical requirements of materials used for the acquisition of PVC windows and doors joinery replacement works as a component part of the tender book. Impact on the environment: Energy consumption and CO2 emissions related to heating/cooling; Emissions of hazardous substances for human health and environment during the production or the end-of-life of construction materials that cause air and water pollution; Negative impact on the health of building users, caused by construction materials containing hazardous substances; CO2 emissions generated by the transportation of materials.