How to install a Fireproof Automatic Door Bottom Seal on a Door?
Introduction
When it comes to fire safety, the smallest gaps can create the biggest risks. One of the most vulnerable points in a fire-rated door is the space at the bottom. While fire door seals protect the edges and frame, the bottom of the door often requires an additional solution: an automatic door bottom strip. But how many installation options are available—and which one is best for your fire door? Let’s explore the most effective approaches.
What Is a Fire Door Seal and Why Does It Matter?
A fire door seal is a specialized barrier designed to stop smoke, flames, and toxic gases from leaking through gaps around the door during a fire. Many of these seals are made from intumescent materials, which expand when exposed to high temperatures. This expansion effectively closes off gaps, helping to contain the fire.
When paired with automatic door bottom strips, intumescent seals provide comprehensive protection by addressing one of the weakest points of the door—the bottom gap.
Option 1: Integrated Fireproof Door Bottom Solutions
The first option is to use automatic door bottoms that come with their own built-in intumescent seal. Products like the RMD RPB series offer both acoustic and fireproof sealing in one design. This means less installation work and a reliable, tested fire-rated solution.
Benefits include:
Dual function: soundproofing and fire protection.
No need for extra fire strips.
Cleaner, more integrated installation.
Option 2: Adding Intumescent Seals to Standard Door Bottoms
If you prefer a flexible approach, you can install a standard automatic door bottom strip first, then attach suitable intumescent fire strips to the wings of the door bottom. This upgrade gives the door bottom a fire-resistant function without replacing the entire system.
Benefits include:
Works with existing door bottoms (retrofit-friendly).
Cost-effective if you already have automatic door bottoms installed.
Customizable to meet different fire rating requirements.
Choosing the Right Solution
The best choice depends on your project needs:
New installations: Integrated automatic door bottoms with built-in intumescent seals are usually the most efficient.
Retrofits or upgrades: Adding fire strips to standard door bottoms may be more practical.
High-security applications: For safes and gun cabinets, a strong fire door seal combined with intumescent technology ensures maximum protection.
Conclusion
There are two main ways to install automatic door bottom strips on fire doors: choosing integrated fireproof door bottoms or upgrading standard models with intumescent fire strips. Both methods enhance safety, but the right option depends on your door type, budget, and fire rating requirements.
No matter which solution you choose, always ensure your fire door seal and automatic door bottom are tested, high-quality, and installed correctly—because when it comes to fire safety, every detail counts.
