Easy to install EPS sandwich panels for roofs and walls

1. Raw Materials and Manufacturing Process:

 - Raw Material: EPS boards are primarily made from polystyrene (PS) resin, a thermoplastic polymer derived from petroleum refining.

 - Manufacturing Process: High-quality polystyrene beads are steam-heated and injected into molds. Under high pressure, these foamed beads solidify, forming a rigid board with an internal structure composed of numerous tiny closed cells.

2. Physical Properties:

 - Lightweight: EPS boards have low densities, typically ranging from 15 kg/m³ to 50 kg/m³, making them significantly lightweight and advantageous in reducing building loads.

 - Thermal Insulation: Their closed-cell structure provides excellent thermal insulation properties, with low thermal conductivity (e.g., around 0.033～0.036 W/(m·K) at an average temperature of 10°C and density of 20 kg/m³). This effectively minimizes heat transfer, suitable for wall, roof, and low-temperature pipe insulation.

 - Water Absorption & Moisture Resistance: Under normal usage conditions, EPS boards exhibit good water resistance and are not prone to moisture absorption. However, severe moisture issues may arise if one side is exposed to high humidity for an extended period while the other side is sealed by an impermeable material or if waterproofing layers fail.

3. Mechanical Properties:

 - Compressive & Tensile Strengths: Despite their light weight, EPS boards possess a certain degree of compressive and tensile strength, allowing them to support the overlying render protection layer without necessitating additional tie-ins, thereby helping prevent thermal bridging.

 - Structural Adaptability: As external wall insulation materials, EPS boards can accommodate shear wall structures and, in innovative construction methods like EPS modular concrete construction, EPS modules serve as formwork with concrete poured into the cavities to form integral shear walls.

4. Other Properties:

 - Electrical Insulation: EPS boards exhibit good electrical insulation properties, suitable for applications requiring electrical protection.

 - Acoustic Performance:Due to their porous structure, EPS boards can absorb and dampen sound waves, providing sound insulation.

- Environmental & Economic Benefits: Being lightweight and relatively energy-efficient to produce, EPS boards are generally cost-effective. Although derived from petrochemicals, their efficient insulation properties contribute to reduced building energy consumption, environmentally beneficial in the long run.

1. Construction Industry:

 - External Wall Insulation Systems: Used as exterior wall insulation or sandwich insulation materials to enhance building energy efficiency and mitigate thermal bridging.

- Roof Insulation: Applied to flat or pitched roofs for thermal insulation to prevent heat loss.

- Floor Heating Systems:Serving as floor heating insulation to maintain stable floor temperatures.

- Special Building Constructions:Such as EPS modular concrete construction, where EPS modules function as formwork with concrete cast inside to create integral wall structures.

2. Packaging Industry:

- Cushion Packaging: Utilized for their excellent cushioning properties to protect fragile items during transportation.

- Refrigerated Containers:Fabricated into insulated boxes or panels for cold chain transportation and storage of food, pharmaceuticals, etc.

3. Industrial & Cold Chain Facilities:

- Cold Storage & Refrigerated Vehicles: Serving as insulation materials in refrigeration facilities to maintain internal low temperatures.

- Pipe & Equipment Insulation: Wrapped around low-temperature pipes or equipment to prevent heat loss or condensation.

4. Other Applications:

- Buoyancy Materials: Used in the manufacture of floating structures such as pontoons, life-saving equipment, etc.

- Model Making: Due to their ease of cutting and processing, often employed in the creation of architectural models, sculpture prototypes, etc.

In summary, EPS boards, with their exceptional thermal insulation properties, lightweight nature, ease of fabrication, and cost-effectiveness, play crucial roles across various sectors, particularly in building energy conservation. When used, attention should be given to their moisture resistance under specific humidity conditions and the potential need for vapor barriers in certain applications to maintain their performance stability.