Upgrade timber floor compartmentation without disturbing decorative ceilings below

At Alpha Fire Protection Limited, we specialise in fire protection solutions that protect Irish buildings while preserving their character. Our team of fire protection professionals, based in Dublin and serving all of Ireland, supply and install the Nullifire IntuDeck® FB770 timber floor upgrade system — a proven solution for enhancing fire compartmentation in existing timber joisted floors.

What is Nullifire IntuDeck® FB770?

IntuDeck® FB770 is a rock mineral fibre board system with a fire and smoke resistant ablative coating, specifically engineered to upgrade timber floor fire performance up to EI90 (fire integrity and insulation) while maintaining the floor’s structural load capacity.

The system is designed for installation from above, within the timber floor void between joists. This makes it ideal where the ceiling below cannot be disturbed — particularly in heritage buildings with ornate lath and plaster ceilings or in occupied spaces where disruption must be minimised.

Where FB770 Timber Floor Upgrades Are Used

We regularly install FB770 IntuDeck on projects across Ireland including:

• Heritage buildings and conservation projects with protected lath & plaster ceilings
• Apartment conversions above retail units requiring enhanced compartment floors
• Multi-occupancy building refurbishments where fire compartmentation needs upgrading
• Period properties undergoing conversion or change of use
• Any timber joisted floor requiring fire rating improvements without ceiling replacement

Fire Performance & System Benefits

Depending on the tested detail and floor build-up, Nullifire IntuDeck® FB770 can achieve:

• Up to 90 minutes fire resistance (EI90) subject to specification
• Simple cut-to-fit installation between timber joists
• Minimal disruption — installed from above, preserving ceilings below
• Compatible with service penetrations when used with appropriate Nullifire firestopping systems
• Full product traceability via Optifire® identifier system

The system is available with single or double ablative coating options depending on your required fire rating and project specification.

Alpha Fire’s Installation Process

We supply and install all FB770 timber floor upgrade systems in strict accordance with:

• Nullifire technical datasheets and application guidance
• Project-specific fire strategy documentation
• Consultant requirements and tested fire performance evidence
• Irish Building Regulations (Part B – Fire Safety)

Digital Quality Assurance with Bolster

Every Alpha Fire installation is digitally documented using Bolster Systems:

✓ QR code tagging for location-based traceability
✓ Photographic evidence at each installation stage
✓ Audit-ready reports for fire consultants, building control, and clients
✓ Complete installation packs for O&M manuals and compliance records

This provides complete peace of mind and ensures full compliance documentation for Building Control submissions and fire certification.

What We Need to Provide Accurate Pricing

To specify the correct FB770 system and provide a firm quotation, we typically require:

• Floor construction details — joist depth, spacing, deck type, and ceiling specification
• Required fire rating — EI30, EI60, or EI90
• Floor area (m²) and access details
• Service penetrations — type, size, and quantity of any services passing through the floor
• Drawings — floor plans and any existing fire strategy documentation

Frequently Asked Questions

What is a timber floor fire upgrade?
A timber floor fire upgrade enhances the fire resistance of an existing timber joisted floor to meet modern compartmentation requirements, typically achieving EI30, EI60, or EI90 fire ratings.

Can FB770 IntuDeck be installed without removing lath and plaster ceilings?
Yes — this is one of the key advantages. FB770 is installed from above, between the floor joists, allowing ornate or historic ceilings to remain undisturbed.

What fire rating can IntuDeck® FB770 achieve?
The system can upgrade timber compartment floors up to EI90, subject to the specific tested detail, floor build-up, and loading conditions.

Is FB770 suitable for heritage buildings in Ireland?
Absolutely. It’s commonly specified for heritage and conservation projects precisely because it protects original decorative ceilings while meeting current fire safety standards.

How long does installation take?
Installation timeframes depend on floor area and complexity, but the cut-to-fit system is designed for efficient installation with minimal disruption.

Do you provide certification and compliance documentation?
Yes — all installations include full Bolster digital QA documentation, photographic evidence, and can be provided with test certificates and compliance packs for Building Control.

Other Fire Protection Services

While we specialise in timber floor fire upgrades, Alpha Fire Protection provides comprehensive passive fire protection services throughout Ireland:

• Firestopping & fire barrier systems
• Fire protection of structural steelwork
• Cavity barriers & curtain walling systems
• Fire damper testing & inspection
• Fire door inspection & installation
• Passive fire surveys & DFT testing
• Acoustic barriers

Get a Timber Floor Fire Upgrade Quote

If your project requires a timber floor compartmentation upgrade — whether EI30, EI60, or EI90 — contact Alpha Fire Protection with your floor construction details and drawings.

We’ll review your specific requirements, confirm the appropriate tested detail, and provide competitive pricing for supply and installation throughout Ireland.