In the pursuit of a sustainable future, the spotlight has shifted to the concept of embodied carbon assessments. As the world grapples …
SBEM Calculations vs. DSM & Thermal Modelling: Similarities and differences between the services
Here at C80 Solutions we offer a variety of services that ensure your construction project complies with the building regulations in a straightforward and hassle-free way. Both SBEM Calculations and Dynamic Simulation Modelling (DSM) can be used to demonstrate compliance with Part L2 of the Building Regulations (energy efficiency requirements for non-residential buildings) – so how do the two services differ from each other?
Each of the Simulation programs are used to produce a 3D model of the building using actual solar and weather data for the building’s specific location. Both SBEM and DSM can use other important details, such as building fabric, mechanical and electrical services and zonal activities, whilst DSM can also use occupancy periods and HVAC schedules. These details are then inputted into the software to produce year-long simulations on a room-by-room basis, creating a detailed picture of the building’s performance.
SBEM Calculations
SBEM, which stands for Simplified Building Energy Model, calculates the monthly energy use and carbon dioxide emissions of a building based on the building’s geometry, construction, HVAC, and lighting. SBEM can highlight solar gain exceedance on a basic level. The calculations should be carried out before the building is constructed based on the proposed plans and again once it has been built.
SBEM Calculations play an important part in protecting the environment. The calculations demonstrate the estimated kilograms of carbon emissions from the building each year and seeing the number like this can put things into perspective for many people. They can also highlight the efficiencies of heating/cooling, ventilation and lighting systems as proposed and demonstrate where these things fall below the required standards.
SBEM will not necessarily comply if the building is simply insulated to the minimum standards. The calculations ensure a building’s thermal performance is looked at and holds developers accountable for insulating buildings to a good standard. This has benefits for both the environment and those who end up occupying the building.
DSM & Thermal Modelling
Dynamic Simulation Modelling (DSM) uses whole building simulation programs which can then be used to undertake the calculations for Part L compliance.
Where DSM looks to provide an output, which looks the same as SBEM, DSM goes beyond SBEM in that it uses hourly weather data with time stop control and can model geometry for better results. Building orientation and inclination is modelled at 1-degree increments and there is inclusion of internal openings. DSM also gives more control over modelling of thermal bridging and improved modelling of glazing, daylight and solar shading and reflection, as well inter-zone heat transfer and better modelling of thermal mass.
DSM can also be used for other purposes; Thermal Modelling and daylight calculations are among a few, with these two simulation types frequently used for BREEAM Assessments. At C80 Solutions, we offer different types of this service, including but not limited to, CIBSE TM59: Residential Thermal Modelling and CIBSE TM52: Commercial Thermal Modelling.
CIBSE TM59 looks at overheating in dwellings. In a world where the climate is only getting warmer, the objective of this is to maintain thermal comfort in housing. This type of Thermal Modelling seeks to address the issue of homes that become uncomfortably hot in the summertime.
Meanwhile, CIBSE TM52 is for commercial buildings that are not mechanically cooled. The idea behind it is the same as TM59: to reduce overheating and increase thermal comfort, but for commercial buildings rather than residential dwellings.
What projects require SBEM Calculations, DSM and Thermal Modelling?
SBEM Calculations are a mandatory requirement for the majority of new build commercial buildings exceeding a total floor area of 50m2. Some commercial extension and conversion projects will also require an SBEM Calculation. DSM is used on more complicated and complex buildings where they cannot be modelled accurately enough within SBEM, for example, buildings with an atrium. SBEM and DSM, where used to show compliance with Part L2, Section 6 or other country appropriate standards, are used for commercial developments; the residential equivalent is SAP Calculations.
Thermal Modelling might be required for different reasons. For example, a BREEAM Assessment is taking place, the local authority has requested it, it may be a Building Control requirement, or it may be required in order to comply with any relevant government guidelines and standards. Thermal Modelling is not specific to commercial buildings and can also be used on residential buildings.
Learn more: C80 Solutions SBEM Calculations Service
Learn more: C80 Solutions Thermal Modelling Service
Energy planning is a critical component of sustainable development in today’s world. As societies strive to reduce their carbon footprint, promote renewable …
Boosting Asset Value through BREEAM In-Use: A Sustainable Investment Perspective In the ever-evolving landscape of real estate and property management, factors influencing …
Decarbonising buildings is a significant step toward achieving overall decarbonisation goals. Buildings play a substantial role in the emission of greenhouse gases …
Government publishes its response to the Future Buildings Standard Consultation Government publishes its response to the Future Buildings Standard Consultation The UK …
What is BREEAM AP and how can it benefit your project? BREEAM is an internationally recognised method for assessing a building’s environmental …
How Psi Values can affect the road to compliance As a result of changes to the building regulations in June 2022, Psi Values now …
U Values: SAP 10 vs SAP 2012 In June 2022, new building regulations came into force in England and the new SAP …
What you need to know about the new Part O In June, new building regulations were introduced in England including a brand new …
The building regulations have changed, here’s what you need to know As of today, Wednesday 15th June 2022, new building regulations are being …
Everything you need to know about SBEM Assessment Levels If you’re new to the concept of SBEM Calculations, you may be unsure …
SAP 10: What you need to know about Psi Values With the arrival of SAP 10 drawing ever closer, we are urging …
SAP 10: New Photographic Evidence Required The arrival of SAP 10 is drawing closer and we are urging our clients to be …
Upcoming Changes to Air Testing Following the response to the Future Buildings Standard Consultation, the government has confirmed that changes to Approved Document …
C80 urges preparation for stricter energy laws The government’s Minimum Energy Performance of Buildings Bill was introduced earlier this month and will …
Caroline is driving our post-pandemic future As the final restrictions are lifted and businesses start to prepare for a future beyond covid, …
World Environment Day 2021: Increasing sustainability in the built environment Each year, 5th June marks World Environment Day. Since 1974, the global event …
Energy and Managing Heat Risk in the London Plan 2021 The Greater London Authority (GLA) has published The London Plan 2021. The …
Back on the radar: SAP10 and what it means for energy assessment A new energy assessment methodology for residential construction is on …
SBEM Calculations vs. DSM & Thermal Modelling: Similarities and differences between the services Here at C80 Solutions we offer a variety of …
Foundations of opportunity: how construction can embrace the female workforce Construction has a reputation as an industry which has done little …
Let’s talk about Thermal Bridging and Psi-Values With the upcoming changes to Part L of the Building Regulations, it’s important to be …
7 things you need to know about the government’s latest Future Homes Standard announcement After a long consultation period, the government has …
C80 Solutions teams up with ThermoSphere to launch TalkSAP10 Experts encourage construction to embrace new energy assessment C80 Solutions has teamed up …
Part L is being updated – here’s how to comply with the proposed changes Since the original publication date of this article, …
C80 Group expands with acquisition of building services consultancy Birmingham-based Stewarts joins the C80 Group Leeds-based building consultancy business, C80 Group Ltd, …
Introducing our Advent Calendar Special Offers Available in December We’re pleased to introduce our first ever Advent Calendar. Every day, Monday to …
Dan and Harry complete BREEAM qualification C80 Solutions are delighted to report that two of our consultants have qualified in BREEAM New …
C80 Group Ltd appoints Non-Executive Director C80 Group is supporting its growth strategy with the appointment of Gary Lumby MBE as its …
Green Homes Grant Guidance The Government has launched a £3 billion plan to upgrade homes, schools and hospitals across England. The programme …
Ticking the right boxes: Energy & Sustainability Statements Navigating your way through planning regulations can be both time-consuming and complex, especially if …
C80 Consultant gains certification from the Institute of Acoustics Jonathon Hill, C80’s Energy and Sustainability Consultant has been awarded the Certificate of …
C80 Solutions takes home National Award C80 Solutions has been awarded second place in the National Energy Efficiency Awards. With twenty companies …
C80 Solutions wins Energy Efficiency Award C80 Solutions has been awarded Energy Consultancy of the year at the 2019 Yorkshire & Humberside …
Nine Key Changes in SAP 10 55% CO2 emission factor reduction for Electric Electricity’s annual average CO2 emission factor will be reduced …
WHAT LONDON NEW ZERO CARBON STANDARD MEANS FOR DEVELOPERS Since October last year, all proposed residential developments located in London are required to …
Will minimum space standards become a part of building regulations?
Will minimum space standards become a part of building regulations? Homes should provide adequate space to meet basic residents’ needs, such as access …
The rise of eco-towers
The rise of eco-towers The United Kingdom is not staying behind, with London’s Strata, The Shard, Pan Peninsula Tower and several others …
Welcome to the new C80 website As you can see, we’ve launched our new website! Designed and developed to represent our progressive …