Building Regulation 7 & Approved Document B: What New Build Contractors Need to Know
For new build contractors, passive fire protection needs to be considered long before the final stages of a project. Fire stopping, compartmentation, cavity barriers, structural protection and product selection all affect whether a building can meet UK fire safety expectations.
Building Regulation 7 and Approved Document B are particularly important because they deal with the quality of materials, workmanship and fire safety performance. When passive fire protection is left too late, projects can face delays, remedial works, failed inspections and incomplete handover evidence.
What Is Building Regulation 7?
Building Regulation 7 relates to materials and workmanship. In practical terms, this means construction work must use suitable materials and those materials must be applied, installed and fixed correctly.
For passive fire protection, this matters because a product being “fire rated” is not enough on its own. The system must be appropriate for the location, substrate, service type and required fire resistance period.
You can view the official guidance on the UK Government Approved Document 7 page.
How Approved Document B Applies to New Builds
Approved Document B provides fire safety guidance for buildings in England. It covers key areas including means of escape, internal fire spread, external fire spread, structural fire resistance and access for fire and rescue services.
For new build projects, this means the fire strategy must be supported by correctly installed Passive Fire Safety systems.
You can view the official guidance on the UK Government Approved Document B page.
Why Passive Fire Protection Must Be Planned Early
On many projects, passive fire protection issues arise because penetrations, risers and service routes are not properly coordinated during construction.
Common problems include:
- Service penetrations installed through compartment walls without proper fire stopping
- Cavity barriers missed or disrupted by follow-on trades
- Unclear responsibility between contractors and subcontractors
- Fire stopping materials substituted without supporting test evidence
- Missing photographic records and handover documentation
These issues can be costly to resolve once ceilings, walls and finishes are complete.
Fire Stopping and Compartmentation
Compartmentation is designed to divide a building into fire-resisting sections. This helps slow the spread of fire and smoke, protect escape routes and support safe evacuation.
However, compartmentation only performs properly when penetrations are sealed using tested systems. Correct Fire Stopping Installations are therefore essential on new build projects.
Fire stopping should be installed to manufacturer-tested details, with suitable products selected for the wall, floor, service type and required fire resistance period.
Structural Fire Protection in New Builds
Where steel beams or columns form part of the structural frame, they may require fire protection to maintain load-bearing capacity during a fire.
Steel Fire Protection may include intumescent coatings, boarding systems or other tested solutions depending on the specification. Correct surface preparation, application thickness and inspection records are all important for compliance.
The Importance of Surveys and Quality Checks
Even on new builds, inspections can identify issues before they become expensive defects.
Fire Compartmentation Safety Surveys can help verify that walls, floors, risers, ceiling voids and service penetrations have been protected correctly.
This is particularly useful before handover, when evidence may be required by building control, clients, insurers or responsible persons.
Third-Party Certification and Handover Evidence
Good passive fire protection is not just about installation. It also requires evidence.
Useful handover information may include:
- Product data sheets and certification
- Installation records
- Photographic evidence
- Marked-up drawings or location schedules
- Details of remedial works completed
Working with providers that are Accredited by BM Trada helps demonstrate that fire protection works are carried out to recognised standards.
How LPP Fire Protection Supports New Build Contractors
LPP Fire Protection works with contractors, developers and project teams to support passive fire compliance throughout new build projects.
Our services include Passive Fire Protection Services, fire stopping, compartmentation support, structural steel protection and remedial works where defects are identified.
We help project teams reduce compliance risk, improve handover quality and support long-term Buildings and Fire Safety.
Conclusion
Building Regulation 7 and Approved Document B both have direct relevance to passive fire safety in new builds. Contractors must ensure that materials are suitable, workmanship is competent and fire protection systems are installed as tested.
By planning passive fire protection early, coordinating service penetrations and maintaining clear documentation, new build projects can reduce delays, improve compliance and deliver safer buildings from the point of handover.
