For the new construction of small residential buildings/prefabricated houses (≤ 6 residential units) - new construction of small residential buildings, which are identical in construction at different locations.
For all types (wooden, solid houses etc.).
Turnkey ready, ready to paint / almost finished and bare-bone houses. The possibility of a combined basic certification must be agreed with the DGNB.
The general system principles for new construction of small residential buildings must be fulfilled.
The processes, building qualities and properties defined in the model building description must apply as far as possible to all projects to be certified, which thus cover a large number of specified DGNB Criteria. Building criteria that cannot be represented in a standardized way are handled and submitted on a project-specific basis. These deviations should be coordinated with the DGNB.
The DGNB offers a widely recognised and independent certificate that is defined by clear guidelines and processes. Serial certification creates a common basis of proof for all projects, which is documented in the model building description or in the specification sheet.
The DGNB Certificate offers a higher efficiency of the construction project, a higher building quality through energy-efficient and low-emission houses and thus makes a relevant contribution to active environmental protection. In addition to low energy costs, it creates a considerable plus in the quality of life and living.
Yes, a DGNB auditor is required to submit the supporting documents for the basic certificate and subsequent projects. In addition, he is an important consultant and sustainability expert for the assessment (pre-check) of the certification classification and optimisation potential of the model building description. In cooperation with the auditor, the client optimizes the model building description with variant investigations and the resulting minimum requirements for achieving the desired certification or the overall degree of fulfillment.
In cooperation with the auditor, the client compiles the model building description with variant investigations.
The model building description consists of:
As a rule, the applicant/manufacturer of prefabricated houses already has it and will be adjusted/optimized in coordination with the auditor in accordance with the DGNB Certification.
In cooperation with a DGNB auditor, the client defines which criteria can be verified in a variant study by means of the model building specification or on a project-specific basis.
Depending on the relevance, the assessment is performed according to the "worst case scenario", the frequency (for serial production) or standard principle, or according to a purely project-specific approach.
In this context, the auditor must demonstrate how the common features of the individual building variants (including the inclusion of several distribution chains and building types for serial certification, etc.) can be ensured. The Serial Certifications carried out so far has shown that approx. 85% of the criteria and their documentation are covered by the underlying model building description. For this, no further proof is required for the projects to be certified.
Common/general valid bases can be e.g. the building description, the used building materials and executing companies/operators etc.
Examples of verification:
The DGNB minimum requirements for the specific evidence must be checked by the auditor (indoor hygiene measurement).
After basic certification, the project-specific specifications are compiled by the DGNB. It serves as the basis for the corresponding individual certifications of the buildings and defines the type and scope of the submission documents that are still required. Lists are used to present, among other things, fixed and variable or purely project-specific criteria.
The costs consist of the certification fees and the fee costs for the auditor's services. The certification fees depend on the number of individual certifications per year and the type of DGNB membership.