Base Track 2,5m-33mm
What is a 33mm EPS Base Track?
A 33mm EPS Base Track (also called a starter track or base rail) is an aluminium profile used as the starting point for External Wall Insulation (EWI) systems. It provides a perfectly level, rigid, and durable foundation for installing 30mm EPS insulation boards, ensuring the system begins straight and remains structurally stable.
According to search results, the 33mm base track is used as:
a bottom guide for EPS or mineral wool insulation boards
a separator between the damp-proof course and the insulation system
a protective reinforcement at the base of the façade
a drip‑profile element that prevents water from tracking behind the insulation
This makes it an essential component for long‑lasting, professional EWI installations.
Key Features
33mm profile – designed specifically for 30mm EPS boards
2.5m length – ideal for continuous façade runs
High‑quality aluminium – corrosion‑resistant and impact‑proof
Integrated drip edge – prevents water ingress behind insulation
Provides a perfectly level starting point for EWI systems
Protects the base of the insulation from mechanical damage
Ensures clean, straight lines at the bottom of the façade
Suitable for EPS and mineral wool systems
Technical Specification
| Specification | Detail |
|---|---|
| Material | Aluminium |
| Profile Width | 33mm (for 30mm EPS boards) |
| Length | 2.5m |
| Function | Starter track / base rail |
| Drip Edge | Yes – prevents water tracking under insulation |
| Compatibility | EPS & mineral wool EWI systems |
| Installation | Fixed with expansion bolts to substrate |
Application Checklist
Mark the installation line Ensure the base track is positioned above the damp‑proof course.
Level the track Accurate levelling is essential for the entire façade system.
Fix with appropriate anchors Use expansion bolts or façade fixings at recommended intervals.
Insert insulation boards Slide EPS boards into the track for a clean, secure base.
Add connectors or clips if required For long runs or uneven walls.
Where to Use a 33mm EPS Base Track
External Wall Insulation (EWI) systems
EPS and mineral wool façades
New builds and retrofit insulation
Areas requiring a clean, level starting point
Installations needing water‑drip protection at the base
Why Installers Choose 33mm Base Track
Professionals prefer this profile because it provides:
a perfectly straight starting line
strong mechanical protection at the base
improved water management
compatibility with standard 30mm EPS boards
long‑term durability thanks to aluminium construction
It’s a small component that makes a big difference in the quality and lifespan of an EWI system.