Seoul National University Childcare Center

GMC505 Integrated Grounding Heating Film Application Case

The floor is the surface where children spend the longest time each day.

In childcare facilities, heating systems must be evaluated not only for thermal performance,
but also for safety, durability, and long-term operational stability.

This project is an application case of Hi Heat’s integrated grounding heating film GMC505,
installed in a large activity hall within the childcare center of
Seoul National University, widely recognized as Korea’s most prestigious university.

---

Supplementary Installation Over an Existing Heating System

The space previously had a different heating system installed beneath the concrete floor.

After long-term use, the system failed, making normal heating operation difficult.

Rather than completely removing the existing floor structure,
a supplementary installation method was selected to safely restore heating performance.

As a result, the GMC505 heating film was installed over the existing heating layer.

---

Product Application and Installation Configuration

The installation was carried out with the following configuration:

• Product: GMC505 Integrated Grounding Heating Film
• Output: 110 W/㎡
• Installation layout: 10 m × 24 strips
• Total installed length: 240 m

By evenly distributing the heating strips according to the size and usage of the space,
temperature deviation was minimized even across a large open area.

---

Structural Protection Designed for Children’s Activity Areas

This area functions as a large indoor play space where children run, roll,
and engage in active movement.

For this reason, mechanical protection and durability were considered just as important
as heating performance.

• A double-layer protective sheet was installed above the heating film
• Thick vinyl flooring was applied as the final finish

This structure ensures stable performance of the heating film even under repeated impact,
load, and friction caused by daily activities.

---

Advantages of the Integrated Grounding Structure

The GMC505 features an integrated grounding structure built directly into the heating film.

This structure:

• Structurally disperses electrical loops around the heating elements
• Reduces unnecessary electromagnetic exposure at floor level
• Provides a stable heating environment without relying on additional grounding layers

This makes the GMC505 particularly suitable for childcare centers and public facilities
that require long operating hours and strict safety standards.

---

Performance Improvement Without Full Floor Demolition

This case demonstrates that heating performance and safety can be significantly improved
without completely removing existing floor structures.

• Existing floor structure maintained
• Construction time minimized
• Child-appropriate protective design applied
• Stable electric heating achieved

Considering all of these factors, the GMC505 heating film was selected as the optimal solution.

---

Suitable Heating Solution for Public and Childcare Facilities

Heating is not only about warmth, but also about safety, reliability,
and overall quality of life within a space.

In environments where children spend extended periods of time,
these standards must be even higher.

The Seoul National University childcare center application case
serves as a real-world example demonstrating that
Hi Heat’s GMC505 integrated grounding heating film
is a reliable heating solution for public and childcare facilities.

---

Installation Site Video

The video below shows the actual installation site at the Seoul National University
childcare center, providing a detailed overview of the installation process
and key technical points.