Can Underfloor Heating Be Added Later? If So, How?
Underfloor heating systems have become one of the essential heating solutions in modern buildings. These systems are frequently preferred in new construction projects due to the comfort and energy efficiency they provide. But what about existing buildings can underfloor heating systems be added later to completed apartments, villas, or offices?
The short answer is: Yes, it is possible. However, this process requires some technical and structural planning. In this article, we’ll explore in detail how underfloor heating systems can be integrated into existing buildings, when they are feasible, and what key points need attention.
How Does Underfloor Heating Work?
Underfloor heating is a system that works by circulating hot water through pipes laid under the floor. Since heat rises from the ground up, a consistent and even warmth is achieved throughout the space. Because it operates at lower temperatures, it saves energy and eliminates the need for bulky radiators.
Is Underfloor Heating Possible in Existing Buildings?
Underfloor heating systems are usually designed as part of new construction projects. However, with the right conditions, these systems can also be retrofitted into existing buildings.
Feasibility depends on the following criteria:
- Can the existing floor covering be removed and replaced?
- Is there sufficient ceiling height?
- How is the insulation quality?
- Is the current heat source (boiler or combi unit) compatible with underfloor heating?
If you can answer these questions positively, then underfloor heating can be integrated into your existing structure.
Installation Methods
1. Wet System (In-Screed Underfloor Heating)
In this method, the existing floor covering (tiles, parquet, etc.) is removed. After laying insulation and underfloor heating pipes, a concrete screed is poured over them. This is the most common method and offers high efficiency.
Advantages:
- Durable and long-lasting system
- Higher heating capacity
- Traditional underfloor heating structure
Points to consider:
- Average floor height loss of 5–10 cm
- Longer and costlier installation process
- Complete replacement of floor covering is necessary
2. Dry System (Low-Profile Underfloor Heating Panels)
Special plates and heating panels are laid directly on the floor without using wet processes or screed.
Advantages:
- Minimal floor height increase
- Shorter installation time
- Ideal for light structures and renovation projects
Limitations:
- Lower heat capacity compared to wet systems
- May be more expensive
At KAS Therm, we provide project-specific solutions using components we manufacture for both systems.
Installation Stages
- Removing the existing flooring
- Creating insulation and pipe layout plan
- Installing PE-RT or PEX pipes manufactured by KAS Therm
- Mounting the manifold and connection parts
- Leak test and system check
- Pouring screed (for wet system)
- Installing new floor coverings
- Commissioning the system
What Are the Advantages?
- Replaces existing radiator system with a more comfortable and economical solution
- Uniform heat distribution enhances comfort
- No radiators on walls allows greater design flexibility
- Saves energy when combined with proper insulation
- Reduces dust circulation, creating a healthier indoor environment
Tailored Manufacturing and Wholesale Solutions by KAS Therm
At KAS Therm, we manufacture high-quality underfloor heating system components suitable for both new construction and renovation applications. Our product range includes:
- Underfloor heating pipes (PE-RT / PEX)
- Manifolds and manifold cabinets
- Connection elements
- Thermal insulation panels
- System accessories
Thanks to our wholesale distribution network, our products are integrated into many projects both in Turkey and abroad. In addition, our engineering team provides technical support for installation companies.
Underfloor heating is a technology that can be implemented not only in new buildings but also in existing structures. With proper planning, quality materials, and expert installation, you can upgrade your living or working space with a modern, efficient, and aesthetically pleasing heating solution.
If you’re considering installing underfloor heating in your current building, KAS Therm is here to offer custom-tailored solutions. As both a manufacturer and wholesaler, we are fully equipped to meet all your technical needs.
Contact us for detailed information and product inquiries.
