Development of a methodology for integral quality assurance over the entire building life cycle based on DIN V 18599
With the help of two software developers, Solar-Computer and synavision, the Institute for Building and Solar Technology is developing a methodology for energy quality management that guides users effectively through the inspection processes from planning to operation. The software tool uses the technical parameters defined in the EnEV certificate and DIN V 18599 as a database for integral quality assurance.
Problem definition
The Energy Saving Ordinance (EnEV) defines the legal requirements for the energy efficiency of buildings. The EnEV certificate is to be prepared as a building document in the approval planning and is defined by the calculation method of DIN V 18599. A large amount of precise and verifiable information about the building is required to create an energy requirement certificate. However, the data on the building structure, building envelope and technical systems is so extensive that a comprehensive check is hardly possible in practice. The following diagram describes the previous process for submitting an EnEV certificate:
Approval planning procedure
As DIN V 18599 does not make any statements about checking the quality specifications in the further course of the project, this process is limited to approval planning. The achievement of the quality objectives during implementation is therefore not guaranteed.
Methodology
The aim of this research project is to improve the verification of EnEV certificates through transparent and compact documentation. To this end, a data interface is to be defined with which a data set from a calculation in accordance with DIN V 18599 can be transferred. The data is then transferred to checklists that can be used to carry out quality checks on the building across all phases of planning, construction and operation.
The following figure describes the methodology for the test procedure with the assignment of checklists, as planned for the research project:
Operation and testing procedure
In order to create the checklists, targets and test and documentation procedures are first developed for the most important parameters of a building in terms of energy requirements. Such an inspection process includes the specification of quality targets and inspection methods, as well as their documentation, including assignments and tracking.
As part of the research project, the process will be tested using three different buildings as examples and test procedures will be applied for all project phases. The aim of the validation is in particular to evaluate the accuracy of the individual indicators and the effort involved in using the test methods.
In detail, the following steps are planned for the research project:
Development of indicators
Definition of the interface
Calculation of three typical buildings
Application of the quality assurance process to three buildings
Evaluation of the quality assurance
Revision of the interface
The pilot applications will be implemented in the project using software from Solar-Computer and synavision.
The addressees of the approach to be developed are in particular the approval authorities of cities and municipalities as well as the issuers of EnEV certificates, as they will be able to meet their inspection obligations more easily and effectively in future. Because the parameters from the EnEV calculation can be integrated into existing software products with little effort thanks to automated data export, the methodology offers particularly good prospects of being used as a service in practice.