How to get help?
Our technical support team can review and support you across your projects to ensure junctions are accurately modeled.
PSI Value Calculator
We understand there are many considerations when you are designing your building to meet the requirement for Building Regulations.
Traditional thermal modelling software can be complex, time-consuming and expensive; while the defaults allowable can often have a detrimental effect on the overall cost of construction required to meet regulations. This is often a challenge for technical teams, housebuilders, architects and SAP assessors. But with AutoPSI as your dedicated PSI value software, you can do PSI value calculations with speed and pass each regulatory assessment with ease.
FEATURES
What makes AutoPSI so powerful?
Unrivalled Speed
Calculate PSI values in minutes
Our efficient PSI value calculator software can determine PSI values quickly, without compromising on results.
Intuitive Interface
Drag and drop bridges and layers
Our user-friendly PSI software allows you to measure thermal elements for buildings with ease.
Fully Customisable
Custom junction builds
AutoPSI provides accredited construction details across a range of editable templates with customisable elements, like different materials, bridging options, frames and more
Accuracy
Meets self-accreditation in BR 479 for 2D calculations
The AutoPSI value calculator is accredited thermal modelling software and conforms to the regulatory requirements of 2D PSI values.
Online
Accessible anywhere, anytime
Determine PSI values your way, on your timeline, with our online PSI value calculator.
Collaborative
Share designs with your team and clients
Easily share the results you’ve calculated both within the software and as exported files.
Why is PSI Value Calculation Necessary for Construction Design?
A PSI value calculation is important because it tracks heat loss in construction junctions, and our PSI value calculator makes this easier with templates and a user-friendly interface. But what makes building thermal modelling software such a significant tool within the construction design industry?
PSI values are required by SAP/EPC building regulations to ensure that you comply with energy performance standards. They require a thermal bridging component, whether you include a separate PSI value or not. When using an assumed PSI value, you’re likely not going to pass.
A reliable PSI value calculation has many benefits:
- Stronger thermal bridging component: A PSI value (linear thermal transmittance), allows you to redesign the two thermal elements of a thermal bridge or junction to avoid greater heat loss.
- Sustainability: With accurate PSI values, you can design energy-saving spaces and remove unnecessary parts of a new build design, which can also save money further down the line.
- Reduce condensation and mould risks: A thermal bridge can cause harmful condensation and mould to spread. PSI value calculations will inform you of risks in advance when doing renovations.
Try AutoPSI today with a free 7-day demo and start streamlining your PSI value calculations.
How it Works
From U-values to non-repeating thermal bridges, PSI values play a big role in building design. With AutoPSI, you don’t need to worry about how to calculate a PSI value, because the values you need are just a few clicks away.
- Choose your junctions: Start by selecting from a set of SAP required junctions (windows, doors, gables, etc.), including options for timber, masonry and steel frames.
- Amend your values: Amend the K-values, thickness and other dimensions of your bridges and layers.
- Control your junctions: At this point in the calculation, you can delete, move and amend any thermal bridge or layer you need to, as per your own unique requirements.
- Change materials or add more layers: Utilise the user-friendly drop-down menu to change your materials or add more layers before initiating the PSI calculations.
- Calculate your PSI value at the click of a button: Within minutes, you’ll have your unbridged U-values, Q, F-values, and PSI values from our efficient PSI calculator, all available in a downloadable PDF report.
Let AutoPSI uncomplicate the PSI formula for you — Sign up for a free demo to start using our innovative PSI value calculator today.
AutoPSI: Innovative & Fast PSI Value Calculation Software
The AutoPSI thermal modelling tool was developed for the construction design industry.
The AutoPSI thermal modelling tool was developed for the construction design industry.
Our technical services team has worked on many projects and designed linear thermal transmittance calculation tools and other bespoke software based on in-depth experience. With an affordable monthly or annual licence available in various packages, you can also take advantage of our easy-to-use and time-saving PSI value calculator and simplify your processes.
Streamline your SAP calculations to ensure your property will be meeting compliance standards — Try AutoPSI for free today.
Latest news and insights from AutoPSI
Thermal Bridging Calculation Compliance
Achieving compliance with increasingly stringent energy efficiency requirements necessitates a thorough understanding and accurate assessment of thermal bridges. What was once a secondary consideration is now a crucial requirement for meeting building regulations and minimizing the performance gap between design and actual energy use.
What are Thermal Bridges?
Imagine your building envelope – the walls, roof, and floor – as a thermal barrier designed to keep heat in during cold weather and out during warm weather. Thermal bridges are localized areas within this barrier where heat flows much more easily than through the surrounding materials. Think of them as weak points in your building’s insulation.