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What is a CIBSE TM31 Logbook and Why Does It Matter?

For those responsible for managing and maintaining buildings, effective documentation is crucial to ensuring compliance, operational efficiency, and long-term cost savings.

Last updated on 27 March 2025

What is a CIBSE TM31 Logbook and Why Does It Matter?

For those responsible for managing and maintaining buildings, effective documentation is crucial to ensuring compliance, operational efficiency, and long-term cost savings. One essential document in this regard is the CIBSE TM31 Logbook. But what exactly is it, why does it matter to you, and how can Denaploy help ensure yours is fully compliant and beneficial?

Understanding the CIBSE TM31 Logbook

The CIBSE TM31 Logbook is a guidance document developed by the Chartered Institution of Building Services Engineers (CIBSE) to standardise the way buildings record and manage operational data. It provides a structured format for logging essential information related to a building’s mechanical, electrical, and environmental systems.

What Does a CIBSE TM31 Logbook Include?

A comprehensive TM31 Logbook typically contains:

  • Building Design & Construction Data – Key information about the structure, layout, and materials used.
  • Mechanical & Electrical Systems Details – Specifications, settings, and maintenance schedules for HVAC, lighting, and power systems.
  • Energy Performance & Efficiency Records – Data tracking energy usage, operational patterns, and potential areas for efficiency improvements.
  • Operational & Maintenance Guidelines – Best practices for ensuring optimal system performance.
  • Commissioning & Handover Documentation – Details of any commissioning tests, inspections, and approvals at project completion.

Why is a TM31 Logbook Important?

For Project Managers, Service Engineers, and Facilities Managers, the TM31 Logbook isn’t just a bureaucratic requirement—it’s an essential tool for effective building management. Here’s why:

1. Ensures Compliance & Avoids Penalties

Many regulatory frameworks, including Part L of the Building Regulations, require accurate building logbooks to demonstrate energy efficiency compliance. Failure to maintain a proper logbook can lead to legal and financial consequences.

2. Improves Operational Efficiency

A well-maintained logbook helps engineers and facilities managers understand system performance, reducing downtime, optimising maintenance schedules, and preventing costly repairs.

3. Supports Sustainability Goals

With increasing pressure to reduce carbon footprints, having an up-to-date logbook allows you to track energy usage, identify waste, and implement sustainability measures effectively.

4. Streamlines Maintenance & Troubleshooting

When issues arise, the TM31 Logbook serves as a quick-reference guide, making it easier for maintenance teams to diagnose and fix problems without unnecessary delays.

5. Enhances Asset Value

For building owners, a well-documented history of maintenance and performance can increase the value of a property, making it more attractive to buyers or tenants.

Why Choose Denaploy for Your TM31 Logbook?

At Denaploy, we understand that managing building documentation can be complex and time-consuming. That’s why we provide expertly crafted TM31 Logbooks that ensure compliance and add real value to your operations.

How We Help:

  • Fully Compliant Documentation – Our team ensures your logbook meets all CIBSE and regulatory requirements.
  • Tailored to Your Needs – We customise logbooks based on your building’s unique specifications and operational demands.
  • Digital & Accessible – We provide digital solutions, making your documentation easy to update and share.
  • Expert Guidance & Support – Our specialists are on hand to help you understand and utilise your logbook effectively.

Secure Your TM31 Logbook Today

Don’t leave compliance and operational efficiency to chance. Ensure your building is fully documented, legally compliant, and optimised for performance with a professional CIBSE TM31 Logbook from Denaploy.

Get in touch today at Denaploy Manuals and let us help you streamline your building management process!

 

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