Underfloor Heating Foam

Price of Underfloor Heating Foam

The price of underfloor heating foam depends on several important factors, including:

• The total area where the insulation will be installed

• Whether the foam is coated or uncoated

• The brand of the underfloor heating foam

• Panel thickness

• Density

• Materials used in the foam

Purchasing EPS Underfloor Heating Boards

Iranian West Foam Development Company, with many years of experience in manufacturing insulation materials—especially underfloor heating foam—produces its products with precision and high quality. The company uses premium raw materials and advanced technologies to produce EPS heating panels, resulting in improved efficiency, durability, and a longer lifespan for your heating system.

The Role of Polystyrene in Underfloor Heating Systems

The insulation used in underfloor heating systems must have sufficient density to prevent floor settlement and must also be strong enough to withstand the pressure applied during installation.

Since EPS polystyrene offers both high density and excellent resistance to applied loads, it is considered one of the best options for insulation in underfloor heating systems.

EPS acts as a thermal barrier in this heating system. The underfloor heating EPS board provides a secure base for installing all components, including underfloor heating pipes, metallized bubble wrap, rail clips, insulation clips, and barbed clips. All these elements are mounted directly onto the EPS insulation panels.

Types of Insulation Foams for Underfloor Heating

Polyurethane Foam (PU)

Polyurethane foam is one of the widely used thermal insulations in underfloor heating systems. It is lightweight, pressure-resistant, and offers suitable density for proper load-bearing performance.

Polyisocyanurate Foam (PIR)

Polyisocyanurate is considered one of the best options for underfloor heating. These foams provide excellent thermal insulation along with high resistance to heat and fire.

Polystyrene Foam (PS)

Polystyrene foams are lightweight and pressure-resistant, and they are typically produced in compressed board form. They perform effectively in underfloor heating applications.

EPS (Expanded Polystyrene)

EPS is one of the best insulation materials for underfloor heating systems. It offers outstanding thermal insulation, excellent compressive strength, and flexibility. EPS significantly improves the efficiency and performance of underfloor heating systems. Choosing EPS as the insulation layer in underfloor heating is a highly effective and reliable option.

Egg-Crate Underfloor Heating Foam (Egg-Box EPS Panels)

The raw material used for egg-crate underfloor heating panels is flame-retardant expanded polystyrene (EPS), manufactured in 69×106 cm dimensions.
The design of egg-crate foam panels makes the installation of underfloor heating systems easier, faster, and more precise, resulting in significant savings in both time and cost.

Thanks to their interlocking side tabs, these panels connect firmly to each other, creating a fully integrated and uniform surface.

The 4.5 mm raised bumps on egg-crate EPS panels prevent direct contact between the heating pipes and the insulation layer below, reducing the direct transfer of heat into the foam.
This design improves energy efficiency by keeping the heat directed upward.

In addition to preventing heat loss to the lower layers, egg-crate EPS panels also offer acoustic (sound-insulating) properties, making them a dual-function solution.
These panels are compatible with all types of multilayer pipes, including Super Pipe, New Pipe, Iso Pipe, and similar five-layer heating pipes.

The Role of Foam in Energy Conservation

EPS polystyrene plays a critical role as a thermal insulator in underfloor heating systems. Thanks to its low thermal conductivity, it prevents heat loss and significantly increases the efficiency of the heating system. In underfloor heating installations, heating pipes are placed beneath the floor. Without proper insulation, heat quickly transfers downward into the subfloor and is wasted.

By acting as an effective thermal barrier, EPS insulation directs heat upward toward the interior space while blocking its transfer to the lower layers of the floor. This ensures that the warmth generated by the underfloor heating system is used efficiently inside the building instead of being lost into the ground.

Additionally, the use of EPS insulation reduces overall energy consumption and heating costs. Unlike traditional heating systems such as radiators—which warm the space unevenly and with higher energy use—underfloor heating combined with EPS panels distributes heat uniformly and efficiently throughout the desired area.

Ultimately, the use of EPS in underfloor heating systems results in remarkable long-term energy savings, reduced heating expenses, and better conservation of energy resources.

Advantages of Underfloor Heating Foam Panels

• Easy panel connection and reduced installation time

• Fire-resistant and flame-retardant material

• Prevents heat loss through the floor and maximizes heating efficiency

• No need for additional pipe-fastening clips

• Compatible with all types of flooring

• Allows accurate pipe placement with high precision

• Reduces overall installation and energy costs

Thickness and Density of Underfloor Heating Foam

Underfloor heating foam panels are produced in various thicknesses, and the selected thickness must be compatible with the type of heating pipes used. The density of the EPS insulation directly determines how much heat reaches the floor surface. When the density is high, the foam provides stronger support and prevents damage to the heating components.

The EPS panels used in residential buildings, workshops, and industrial warehouses typically have a density above 20 kg/m³. These high-density panels offer excellent mechanical strength while effectively preventing heat loss to the lower layers of the structure. At the same time, they help maintain a uniform and consistent heat flow to the upper surfaces and floor coverings.

Steps for Installing Underfloor Heating Insulation Foam

 Floor Surface Preparation

First, the floor surface must be completely cleaned, and any dust or debris must be removed. This step ensures proper adhesion and prevents potential problems over time.

 Installing the EPS Insulation Panels

After preparing the surface, EPS polystyrene panels are carefully placed on the floor. Proper alignment of the panels is essential to prevent gaps or spaces between them, which helps reduce heat loss.

Cutting EPS Panels to Required Sizes

In many cases, EPS panels must be cut to specific dimensions so they fit perfectly within the installation area. This is typically done using special cutting tools or hot-wire cutters.

 Using Egg-Crate Foam Panels (If Required)

If egg-crate (dimpled) foam panels are used, they should be placed in the designated areas according to the installation layout. These panels interlock easily, creating a uniform and stable surface.

Installing Underfloor Heating Pipes

The underfloor heating pipes are then installed on top of the EPS insulation. The pipes must be placed precisely within the grooves of the EPS panels or egg-crate foam system. Special clips or fastening systems are usually used to secure the pipes in place.

 Testing the System After Installation

Once the pipes are installed, the system must be tested to ensure proper performance. This includes pressure testing to check for leaks and verifying that the heating system functions correctly.

 Applying the Final Floor Covering

After testing, the EPS insulation and heating pipes are covered with the chosen floor finish—such as tile, ceramic, laminate, or parquet. This step enhances the efficiency of the underfloor heating system and protects the insulation.

duced in various thicknesses, and the selected thickness must be compatible with the type of heating pipes used. The density of the EPS insulation directly determines how much heat reaches the floor surface. When the density is high, the foam provides stronger support and prevents damage to the heating components.

The EPS panels used in residential buildings, workshops, and industrial warehouses typically have a density above 20 kg/m³. These high-density panels offer excellent mechanical strength while effectively preventing heat loss to the lower layers of the structure. At the same time, they help maintain a uniform and consistent heat flow to the upper surfaces and floor coverings.