High-Strength XPS Foam Board for Floor Heating

Underfloor Heating Extruded XPS Board represents a cutting-edge thermal insulation material prominently employed in constructing underfloor heating systems, serving as the primary thermal insulation layer underneath. Crafted from premium polystyrene resin and undergoing a specialized extrusion procedure, it adopts a seamless, uniform closed-cell honeycomb composition, endowing it with exceptional attributes such as superior thermal insulation, heat retention, moisture resistance, and robust load-bearing capabilities.

Product Overview

Unlike standard insulation boards, this high-strength variant provides the dual benefits of efficient heat retention and exceptional load-bearing capacity, ensuring long-term performance even in the most challenging environments. Whether you're installing a floor heating system in a retail space, office building, or multi-story residential complex, this board delivers the reliability and durability needed to meet the demands of modern construction.

Material Composition

The High-Strength XPS Foam Board for Floor Heating is manufactured using a high-density extruded polystyrene formulation that undergoes a specialized production process to enhance its structural properties. The core material is created through an extrusion process that uses CO₂ as a foaming agent, resulting in a uniform closed-cell structure with minimal voids . This advanced manufacturing technique ensures consistent density throughout the board, which is critical for achieving its exceptional strength characteristics. The material composition includes additives that enhance both the compressive strength and thermal resistance of the board, without compromising on either property. Like all premium XPS products, it is HCFC-free with zero ozone depletion potential, reflecting our commitment to environmentally responsible manufacturing . The board's surface is designed to provide excellent adhesion for floor coverings, ensuring a secure bond that prevents shifting or movement over time.

Customization Services

To meet the specific needs of your floor heating project, we offer a range of customization options for our High-Strength XPS Foam Board:

• Strength Grading: We provide boards with varying compressive strengths, from 300 kPa for light-duty applications up to 700 kPa for heavy-duty commercial use, allowing you to select the optimal strength for your specific load requirements.

• Thickness Options: Available in thicknesses from 20mm to 150mm, ensuring that you can achieve the required insulation value while accommodating the structural needs of your project.

• Size Customization: Standard board sizes include 2400x1200mm, but we can produce custom dimensions to minimize waste and streamline installation.

• Edge Profiles: Custom edge designs, including tongue-and-groove options, to ensure a tight fit between boards and minimize heat loss at joints.

• Surface Treatments: Optional surface treatments to enhance adhesion with specific floor coverings or bonding agents, ensuring compatibility with your chosen flooring system.

• Certification and Documentation: Comprehensive technical documentation, including ASTM C578 compliance certificates, load-bearing capacity data, and thermal performance specifications to support your project's engineering and regulatory requirements.

• Bulk Ordering and Delivery: Flexible production schedules to meet your project timeline, with bulk ordering discounts and logistics support to ensure timely delivery to your construction site.

Exceptional Compressive Strength

The defining feature of this product is its impressive compressive strength of up to 700 kPa , making it capable of withstanding heavy loads of up to 30 tonnes per square metre . This strength allows the board to support the weight of concrete slabs, heavy furniture, and high foot traffic without deformation, making it suitable for commercial applications such as retail stores, hotels, and office buildings. The uniform distribution of cell structure throughout the board ensures that this strength is consistent across the entire surface, eliminating weak points that could lead to failure.

Superior Thermal Insulation

Despite its focus on strength, the High-Strength XPS Foam Board does not compromise on thermal performance, boasting a low thermal conductivity of 0.028 W/(m·K) . This excellent thermal resistance ensures that heat from the underfloor heating system is efficiently retained and directed upward into the living space, minimizing energy loss and reducing heating costs. The closed-cell structure of the XPS material prevents air circulation within the board, further enhancing its insulation properties and ensuring consistent performance over time.

Moisture and Mold Resistance

With a 99% closed cell ratio and a water absorption rate of less than 1% by volume , this high-strength XPS board offers exceptional moisture resistance. This is crucial in floor heating applications where exposure to moisture can compromise both structural integrity and insulation performance. The board's resistance to water absorption prevents mold growth and ensures that its thermal and structural properties remain unaffected even in humid conditions, making it suitable for use in bathrooms, kitchens, and basements.

Long-Term Durability

The High-Strength XPS Foam Board is designed for long-term performance, with a lifespan that exceeds 50 years under normal conditions. Its resistance to thermal aging, tested according to ASTM D2126 standards , ensures that it maintains its structural and thermal properties even after prolonged exposure to temperature fluctuations. The board is also resistant to degradation from chemicals, insects, and rodents, further enhancing its durability and reducing the need for replacement or maintenance over the life of the building.

Easy Installation and Compatibility

Despite its high strength, the board remains easy to cut and install, allowing for precise fitting around obstacles and ensuring a tight seal that minimizes heat loss. It is compatible with all types of underfloor heating systems, including water-based and electric systems, and can be used with a wide range of floor coverings, including hardwood, tile, laminate, and carpet. The board's dimensional stability ensures that it maintains its shape during installation and throughout its service life, preventing gaps that could compromise insulation performance.

Here are four specific application scenarios of packaging machinery:

1、Cold storage cold chain insulation

2、Building roof insulation

3、Steel structure roof

4、Building wall insulation

5、Building ground moisturising

6、Square ground

7, Ground frost control

8, Central air-conditioning ventilation ducts

9, Airport runway heat insulation layer

10, High-speed railway roadbed, etc.

Step 1: Preparation

1.Cleaning the Floor: Ensure the floor is flat, dry, and free of debris. Remove all dust, stones, and other foreign objects that could affect the paving quality.

2.Measuring and Cutting: Measure and use special tools (such as an electric disc saw) to accurately cut the extruded plastic board to fit the actual room size.

Step 2: Laying Boundary Insulation Strips

Install boundary insulation strips around the walls and at special locations like column footings and door frames. This prevents heat loss and ensures the extruded panels fit seamlessly against the walls.

Step 3: Laying the Extruded Panels

1. Following the design drawings, start laying the extruded panels from one corner of the room, ensuring each panel is tightly spliced with no gaps to maintain insulation effectiveness.

2. If floor heating pipes need to be installed, use a special hole opener to create grooves in the extruded plastic board. The depth and spacing of the grooves should be according to the floor heating design scheme.

3. During the laying process, ensure a proper overlap between the boards and the boundary insulation strips to maintain effective insulation.

Step 4: Fixing and Protection

1. If needed, use special fixings or nylon ties to reinforce the extruded board to prevent displacement during construction and use.

2. After laying the floor heating pipes, ensure they are correctly fixed in the extruded sheet grooves without being squeezed or bent.

Step 5: Sealing and Checking

1. Once the floor heating pipes are laid and pass the pressure test, seal all seams and openings of the extruded plastic board with special sealing tape or caulking to prevent moisture ingress.

2. Conduct a thorough check of the installation quality of the extruded plastic board to ensure there are no omissions, damage, or loose parts.

Step 6: Subsequent Construction

1. Lay a reflective membrane or covering above the extruded panels to reflect heat back into the room and provide a base for subsequent floor tiling or flooring.

2. After completing all insulation and protection measures, proceed with installing concrete backfill or floor decoration materials.