A small but essential component in any wet underfloor heating system is the perimeter edge strip. While often overlooked, this element plays a critical role in the performance and stability of the floor.

What is a perimeter edge strip?

It’s a flexible insulating strip installed along the base of interior and exterior walls, between the screed and the wall. Its main role is to absorb lateral expansion of the screed and prevent heat and sound transfer to adiacent structures.

Why is it necessary?

• ✅ Allows screed expansion – prevents pressure buildup against walls and reduces risk of cracks.
• ✅ Minimizes thermal bridges – reduces heat loss through uninsulated wall areas.
• ✅ Improves acoustic insulation – limits sound transmission through the floor structure.
• ✅ Protects floor finishes – prevents stress or damage along floor edges over time.

Where is it installed?

• Along all walls (interior and exterior), and around columns or vertical elements
• Installed before screeding, directly above the insulation layer

Conclusion:
The perimeter edge strip is a must-have in any wet underfloor heating system. It enhances thermal and acoustic efficiency while protecting your flooring investment long-term.

In a wet underfloor heating system, dilatation profiles are not just a recommendation – they’re critical for the performance and structural integrity of the installation.

What are dilatation profiles?

These are separation elements placed in the screed that allow the floor to expand and contract naturally as temperatures change. Without them, the screed may crack and deform, potentially damaging the heating system and the finishes of the floor.

Why are they so important?

• ✅ Prevent screed cracking – thermal expansion creates internal stresses; dilatation profiles absorb and relieve them.
• ✅ Protect heating pipes – structural movement can stress or damage the embedded pipes.
• ✅ Ensure even system performance – no deformation, no heat loss, no risk to efficiency.
• ✅ Divide large areas – essential for rooms over 8 m long or 40 m² in total surface.

Where and how are they installed?

• At door thresholds or room transitions
• Every 8 linear meters in large open spaces
• Installed before screeding, directly over insulation and between heating pipe circuits

Conclusion:
Dilatation profiles are a key detail in wet underfloor heating systems. They protect your investment by ensuring durability, efficiency, and safe operation over time.

Dry underfloor heating systems come in various forms, but not all deliver the same level of performance, durability, or ease of installation. Here’s what to consider when selecting the right system for your project.

1. Panel Material

• Wood: heavy, expensive, and absorbs moisture.
• Gypsum: heavy and fragile – cracks of the panels can lead to lose the whole board.
• ASSENS EPS400 Polystyrene: is the smart choice because the panels are ultra-lightweight, moisture-resistant, and feature aluminum foil that blocks oxygen, UV rays and humidity.

2. Preformed Channels vs. Flat Panels

• Flat panels require special tools to carve channels, increasing labor and time.
• ASSENS EPS400 panels come with pre-cut straight and rounded channels, so only one panel is needed for full system installation.

3. Thermal Efficiency

The aluminum foil layer acts as a radiator, distributing heat evenly across the floor surface by absorbing and radiating warmth from the heating pipes.

4. Channel Design

Basic panels often require separate return panels for pipe turns. In contrast, ASSENS EPS400 panels include built-in turning channels, simplifying installation and logistic—no need for multiple panel types.

5. Panel Density

• EPS200: lower density, requires a load-distribution membrane, adding cost and complexity.
• EPS400: high-density, no membrane needed, saving both time and money.

6. Compatibility with Floor Finishes

EPS400 panels can be used with screed, parquet, tiles, or marble. Adhesives or leveling compounds can be applied underneath or on top as needed—just ensure your top layer is compatible with underfloor heating.

Conclusion:
For a reliable, efficient, and easy-to-install dry system, ASSENS EPS400 panels offer the best solution: one panel, multiple advantages, no compromises.