Unlock the secrets of VURB assessments in the construction industry and discover how they can optimize your building projects for compliance and efficiency.
Verification Using a Reference Building (VURB) is a compliance pathway outlined in the National Construction Code (NCC) Volume 2.0, specifically in Section H6. This method involves comparing the energy performance of a proposed building against a reference building that meets the minimum performance requirements. By doing so, it verifies that the proposed design achieves an equivalent or better level of energy efficiency.
This approach is particularly useful for complex or innovative building designs that may not conform to standard prescriptive requirements. It allows for more flexibility in design while ensuring that the building meets the necessary energy performance standards.
The Deemed-to-Satisfy (DTS) method is a prescriptive approach where specific construction criteria must be met to comply with the NCC. This method is straightforward but can be limiting for unique building designs.
The Nationwide House Energy Rating Scheme (NatHERS) method uses software to simulate a building's energy performance and assigns a star rating based on its thermal efficiency. While NatHERS provides a detailed assessment, it may not capture the nuances of non-standard designs.
In contrast, the VURB method offers greater design flexibility by allowing for a performance-based comparison. It enables designers to explore innovative solutions that still meet or exceed energy efficiency requirements.
A VURB assessment is typically required when the proposed building design does not fit neatly within the prescriptive DTS provisions or when a more flexible, performance-based approach is desired. This can include new homes with unconventional designs, significant alterations to existing structures or extensions that aim to incorporate advanced energy-efficient features.
In these cases, the VURB method ensures that the building's overall energy performance is not compromised while allowing for design innovation and customization.
One of the primary benefits of using the VURB method is the ability to accommodate complex or non-standard building designs that may not comply with prescriptive DTS requirements. This flexibility allows architects and designers to implement innovative solutions and achieve higher levels of energy efficiency.
Additionally, the VURB method can result in more sustainable building practices, as it encourages the use of advanced materials and technologies. It also provides a clear and quantifiable way to demonstrate compliance with energy performance standards which can be advantageous in securing approvals and certifications.
To begin your VURB assessment, the first step is to gather all necessary documentation, including detailed architectural plans and specifications of the proposed building. This information will be used to create a reference building model that meets the minimum performance requirements under the NCC.
Next, an energy performance simulation is conducted for both the proposed and reference buildings. The results are compared to verify that the proposed design meets or exceeds the energy efficiency standards. Detailed reports and documentation of the assessment process are then prepared to support compliance submissions.
It is essential to work with certified professionals who are experienced in conducting VURB assessments to ensure accuracy and compliance with regulatory requirements.