FR5 Software

FirstRate5® house energy rating software

FirstRate5® is an easy-to-use interactive tool with a graphic user interface that enables designers and thermal performance assessors to generate energy ratings for a home by tracing over floor plans. The software integrates the AccuRate calculation engine to estimate the annual heating and cooling energy and can be used to rate an existing design or as an interactive tool to optimise the design beyond compliance.

About FirstRate5

  • Who owns FirstRate5?

  • How much does FirstRate5 software cost?

  • How do I register to download and use the latest version of FirstRate5?

  • How much does it cost to produce a certificate?

  • What support does SV provide for FirstRate5?

  • What is the best way to send a query?

  • I would like help with a modelling query, who can help with this?

  • What system requirements are necessary for FirstRate5?

  • Does FirstRate5 work with Java9?

  • What do I do if FirstRate5 does not open?

Access to legacy versions of FirstRate5

  • Why do legacy versions not calculate automatically on the FR5 website?


  • How do I allow for a 'window' in an internal wall?

  • Why is the Save command disabled when I upgrade my earlier files?

  • How do I re-issue an invoice?

  • How do I simultaneously attach eaves to multiple walls?

  • Windows: Where can I learn how to use the new default windows?

  • Weather-stripping and insect screens: When can I turn on/off weather-stripping and insect screens?

  • Certificate: Why does the NCFA sometimes not equal the sum of the individual zone areas?

  • Group certificate: How do I produce a NatHERS Group Certificate for a multi-unit development?

  • Will installing a new version of FR5 overwrite older versions of the software on my machine?

  • What can I do if I am having memory issues or performance is slow?

  • Are your Project files too large (Above 15Mb) or Project file won’t save?

  • How do I complete the Declaration of Interest?

  • How do I remove / edit my NatHERS accreditation number?

  • How can I access a deleted file or a FR5 backup project file?

  • Certificate: Why does my preview certificate say "non-accredited"?

Online certificate generation system

  • What are the features of the certificate generation system?

  • How does the certificate generation system work?

  • Will there be a reduced fee based on the number of credits purchased?

  • Can I pay for the certificates that my employees/sub-contractors produce?

  • How do I know my credit card details will be secure?

  • Can I transfer FR5 Credits from one account to another?

12-month replaceable certificates

  • Will I need to use two FR5 Credits to complete an alteration rating (i.e. before and after ratings)?

  • Can I replace a certificate if the address specified in the original issued certificate has changed?

Guidance Notes

           01 Wall Builder + Upgrade v1.0
           02 Wall Builder Examples v1.0
           03 Floor Builder + Upgrade v1.0
           04 Floor Builder Examples v1.0

Instructional videos