At Insupad, we believe insulation is more than a building material – it’s a commitment to safer, smarter, and greener spaces. Our philosophy is built on innovation, energy efficiency, and sustainability, ensuring every project delivers long-lasting quality while protecting both people and the environment
XPS provides outstanding thermal insulation due to its closed-cell structure, which minimizes heat transfer and energy loss. This ensures stable indoor temperatures, improved energy efficiency, and reduced heating and cooling costs, making it a highly effective choice for long-term thermal performance.
XPS boards are lightweight and easy to cut, transport, and install, reducing labor costs and saving time during construction. Their user-friendly handling allows precise fitting on various surfaces, making them practical for both large projects and smaller, detailed applications.
XPS is highly resistant to water absorption, unlike many other insulation materials. Its closed-cell composition prevents moisture infiltration, ensuring thermal properties remain intact even in humid or wet conditions. This makes it ideal for basements, foundations, and other moisture-prone construction areas.
XPS offers exceptional long-term durability thanks to its resistance against water, decay, and thermal degradation. It maintains insulation performance for decades without significant changes, providing a reliable solution for sustainable construction that demands both consistent efficiency and structural stability over time.
XPS delivers excellent compressive strength, maintaining its shape and performance under heavy loads. It withstands structural pressure without deforming, making it particularly suitable for flooring, parking decks, and green roofs, where both insulation and mechanical durability are critical for lasting reliability.
While primarily designed for thermal performance, XPS also contributes to reducing sound transmission between floors and walls. Its dense, rigid structure helps absorb and reflect noise, offering an additional layer of acoustic comfort in residential and commercial building projects.
Choosing the right insulation makes all the difference in comfort, energy efficiency, and long-term durability. This comparison highlights the key features of XPS, EPS, and Rock Wool-helping you decide which material best fits your project needs.
| Parameter | XPS | EPS | Rock Wool |
|---|---|---|---|
| Thermal Insulation | Low thermal conductivity (0.029–0.035 W/m·K), stable performance over time | Moderate thermal conductivity (0.035–0.045 W/m·K), may decline with moisture | Moderate thermal conductivity (0.035–0.045 W/m·K), stable unless soaked |
| Moisture & Water Resistance | Nearly zero water absorption, ideal for humid environments | Relatively high water absorption, performance decreases in damp areas | Moderate resistance, requires vapor barrier in humid environments |
| Compressive / Mechanical Strength | Very high, maintains shape, suitable for floors and green roofs | Moderate, may crush under high loads | Low, mainly suitable for walls and ceilings without direct load |
| Sound Insulation | Moderate sound reduction | Poor acoustic performance | Excellent sound reduction, ideal for floor-to-floor noise control |
| Installation & Workability | Lightweight, easy to cut, quick installation | Lightweight, easy to install but more brittle | Easy to cut but requires protective gear, produces dust during handling |
| Durability & Service Life | Very high, stable against temperature and humidity changes | Moderate, may compress or deform over time | High, stable unless exposed to prolonged moisture |
| Typical Applications | Flooring, underlayment, green roofs, exterior walls, humid environments | Flooring and drywall, lightweight projects | Walls and ceilings for thermal and acoustic insulation |
| Approximate Cost | Higher than EPS, mid-range compared to rock wool | Low, very economical | Medium, varies with density and quality |
resistance, and durability engineered for reliable use in floors, walls, roofs, and foundation applications.
| Parameter | Specification |
|---|---|
| Product Type | Extruded Polystyrene (XPS) Rigid Foam Board |
| Thickness | 50 mm (5 cm) |
| Thermal Conductivity (λ) | 0.029 – 0.035 W/m·K |
| Thermal Resistance (R-value) | ~ 1.40 – 1.70 m²·K/W (per 50 mm) |
| Compressive Strength | 200 – 400 kPa (at 10% deformation, depending on grade) |
| Density | 30 – 40 kg/m³ (typical range) |
| Water Absorption (Immersion) | ≤ 0.3% by volume (very low) |
| Dimensional Stability | ≤ 2% (under temperature and humidity variation) |
| Service Temperature Range | -50 °C to +75 °C (continuous use) |
| Fire Classification | Combustible, must be installed with protective layer (e.g., gypsum board) |
| Board Size (Standard) | 600 × 1250 mm or 600 × 2400 mm (sizes may vary by manufacturer) |
| Edge Profiles | Square, Shiplap, or Tongue & Groove |
| Applications | Floors, green roofs, external walls, foundations, under screeds, wet environments |
Yes, XPS boards are lightweight, easy to cut, and quickly installed with adhesives or mechanical fixings for seamless thermal insulation
It is commonly applied in floors, roofs, foundations, walls, and green roofs where strength and moisture resistance are essential.
When properly installed, XPS insulation maintains thermal and mechanical performance for over 50 years, even under demanding environmental conditions.
Modern XPS products are manufactured with eco-conscious blowing agents, offering high energy efficiency and reducing overall building environmental impact.
Thanks to its closed-cell structure, XPS absorbs very little water, maintaining insulation performance even in humid or wet conditions.
Yes, XPS boards are lightweight, easy to cut, and quickly installed with adhesives or mechanical fixings for seamless thermal insulation
