SBEM Calculations
The Simplified Building Energy Model (SBEM) calculates the energy performance of non-residential buildings. It ensures compliance with UK Building Regulations, specifically Part L2 of the Building Regulations, which sets energy efficiency standards for commercial properties. The SBEM calculations produce Energy Performance Certificates (EPCs), which highlight a building’s energy consumption and carbon emissions. Moreover, SBEM assessments enable developers to meet regulations, reduce energy waste, and lower environmental impact, making them a critical part of sustainable construction.

What Are SBEM Calculations?
SBEM calculations evaluate a building’s energy use for heating, cooling, ventilation, and lighting over a typical year. To do this effectively, they assess the thermal properties of construction materials—such as walls, roofs, and windows—while also examining the efficiency of systems like heating, cooling, and ventilation. Additionally, they measure total energy consumption and carbon emissions, providing clear insights into a building’s overall environmental performance.
Furthermore, these calculations empower developers to design energy-efficient buildings while reducing operational costs. By identifying inefficiencies early in the process, SBEM results allow architects and engineers to address potential problems during the planning stage. This proactive approach ensures compliance with regulations and fosters sustainability from the outset.
When Are SBEM Calculations Needed?
SBEM calculations apply to a wide range of projects. For instance, new non-residential buildings, major renovations, and extensions that affect energy performance all require these assessments. In addition, projects that include features like large glazed areas or modifications to heating and cooling systems make updated calculations essential.
In the case of mixed-use developments, SBEM ensures non-residential portions comply with energy standards. Furthermore, developers pursuing BREEAM certification rely on SBEM calculations to secure credits for energy efficiency and thermal comfort. Clearly, SBEM assessments play a crucial role in ensuring compliance and achieving sustainability goals across various building types.

Why SBEM Calculations Matter
SBEM calculations are critical for designing and constructing energy-efficient buildings. They help developers reduce long-term operational costs, cut carbon emissions, and achieve sustainability goals. In addition to meeting regulatory requirements, these calculations encourage environmentally responsible construction practices.
By identifying inefficiencies early, SBEM assessments allow timely adjustments that improve energy performance. Moreover, incorporating SBEM into projects ensures compliance, reduces delays, and enhances the building’s appeal to environmentally conscious businesses and consumers. Ultimately, SBEM calculations contribute to a greener future while supporting cost-effective building solutions.
The SBEM Calculations Process
The Design Stage
During the design phase, SBEM calculations confirm whether a building meets energy efficiency standards. If results reveal non-compliance, adjustments can include improving insulation, optimizing glazing, or upgrading mechanical systems. After the design achieves the required standards, the results are submitted to Building Control, enabling construction to proceed.
The As-Built Stage
Once construction finishes, the as-built SBEM assessment ensures the completed building matches the design-stage energy targets. This phase usually includes air permeability testing and any adjustments needed for changes made during construction. Finally, the results are submitted to Building Control, allowing the project to secure its Energy Performance Certificate (EPC) and completion certificate.
Summary
SBEM calculations play a vital role in creating energy-efficient, compliant buildings. They provide developers with the tools to address inefficiencies early, reduce operational costs, and meet sustainability objectives. In turn, this ensures a smoother path to regulatory approval and contributes to environmentally responsible construction practices.
Our expert assessors guide you through every stage of the SBEM process, from initial design to final certification. Let us help you achieve your energy performance goals. connect us today to learn more and take the first step toward a more efficient building.
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