How to install Tenmat FF102/50 Fire Barrier

Ensuring fire safety in modern buildings, especially those with ventilated facade systems, is critical. The installation of fire barriers in cladding cavities helps to prevent the rapid spread of fire across the building envelope. One of the most effective solutions for cavity fire protection is the Tenmat FF102/50 Cavity Fire Barrier, designed for use in horizontal orientation with a maximum cavity of 50mm only.

If you are looking for a fire barrier for a different application then please visit Tenmats website directly to view their product range.

This post focuses on how to install the Tenmat FF102/50 Fire Barrier horizontally in cladding cavities, providing a step-by-step guide to achieve optimal fire protection.

Note: This guide is specifically for Tenmat FF102/50 fitted in a max cavity of 50mm.

What is the Tenmat FF102/50 Cavity Fire Barrier?

The Tenmat FF102/50 is an intumescent cavity fire barrier that provides up to 120 minutes of fire resistance. It is designed specifically for cavities up to 50mm wide, commonly found behind ventilated cladding systems. In the event of a fire, the barrier expands to close the cavity, blocking the spread of flames and smoke.

FF102/50 Product Dimensions (thickness x height x length) - 6mm x 75mm x 1000mm

Why is Horizontal Installation Important?

Horizontal fire barriers are crucial in preventing the fire from moving upwards through the building's cladding cavity. Since heat rises, vertical fire spread can occur rapidly in the event of a fire. The horizontal placement of the Tenmat FF102/50 ensures that this upward spread is contained, providing critical time for evacuation and emergency response.

Tools and Materials Needed

Before starting, ensure you have the necessary tools and materials:

• Tenmat FF102/50 Cavity Fire Barrier

  • Enough 1mtr lengths to cover the top and bottom of all cladding areas + the top and bottom of all openings.

• Tape measure

• Marker pen

• Cutting tool (utility knife or saw)

• Drill and 5.0 x 60mm stainless steel fixings

Step-by-Step Installation Guide for Horizontal Application

Step 1: Preparation of the Cladding Cavity

1. Measure the Cavity Width

   First, ensure the cavity is no wider than 50mm. The Tenmat FF102/50 barrier is designed for cavities up to this size. For wider cavities, consider using an alternative product or additional measures.

2. Confirm Installation Details

   Decide how you will install the Tenmat FF102/50 fire barrier. The first (recommended) installation method is FF102/50 fitted continuously between interrupted battens. The second option is FF102/50 fitted either side of battens (tightly butted) but NOT behind battens.

   

3. Clean the Cavity

   Remove any debris, dirt, or loose materials from the cavity. A clean installation surface is essential for proper fitting and fire resistance.

Step 2: Measure and Cut the Fire Barrier

1. Measure the Required Length

   If you opt to install the Tenmat FF102/50 either side of your vertical timber battens (Instead of a continuous run) measure the horizontal section of the cavity where the barrier will be installed.

2. Mark and Cut the Fire Barrier

   Use a marker pen to mark the required length of the fire barrier. Cut the Tenmat FF102/50 barrier to the appropriate size using a utility knife or saw. Ensure the cut is clean and straight to ensure a snug fit in the cavity.

   
   

Step 3: Secure the Barrier with Fixing Screws

1. Position the Fire Barrier in the Cavity

   Insert the cut fire barrier horizontally into the cavity, ensuring it fits tightly between the vertical timber battens. The barrier should sit flat against the face of the blockwork.

2. Screw & Plug

   Fix the FF102/50 to the blockwork using 5.0 x 60mm stainless steel fixings and plugs ensuring a maximum spacing of 250mm and max 125mm from any strip end. (You will require 4 fixings for any full 1000mm length).

3. Cut Sections

   For cut sections of cavity barrier less than or equal to 250mm in length only one fixing is required, positioned centrally, ensuring the end of the strip is tightly abutted to adjacent strip/substrate to prevent rotation. If adding additional lengths, ensure they are tightly butted up against each other.

Step 6: Final Inspection and Compliance Check

1. Check Stability

   Ensure the barrier installed in all areas that it's required, and make sure a sufficent amount of fixings are used on each length.

2. Verify Compliance with Fire Codes

   Double-check the installation against both the manufacturer’s guidelines and local building regulations for fire safety. Horizontal fire barriers should be installed in line with these requirements to ensure compliance and maximum safety.

Conclusion

Installing the Tenmat FF102/50 Fire Barrier horizontally in a cladding cavity is a vital step in ensuring the fire safety of ventilated facade systems. By following the detailed installation steps outlined above, you can confidently create an effective barrier that prevents the spread of fire and smoke through the cladding cavities, providing essential protection to the building and its occupants.

As always, make sure to consult with fire safety professionals and adhere to all local building codes to ensure a safe and compliant installation. Properly installed, the Tenmat FF102/50 will provide reliable fire resistance and peace of mind.