planning

The WTA-Leaflets (International Association for Science and Technology of Building Maintenance and Monuments Preservation", (WTA)) provide recommendations on how a defined quality of building airtightness can be achieved when renovating existing buildings. These recommendations are guidelines that support planners, builder and quality inspectors involved in construction in their implementation. 
The leaflet series consists of 3 parts: 

The IEA's Committee on District Heating, Cooling and Combined Heat and Power has been concerned that the integrative technology of district heating and cooling is being overlooked by decision makers in both the IBA, the EU Commission and by the United States DOE. There are myths and misconceptions based, in part, on poorly maintained systems in the Central and Eastern European countries that cloud the real fact that, where based on waste heat utilization these systems are more efficient than the direct use of natural gas.