GIAS XPS E+

GIAS XPS from the + range represents the technological evolution of extruded polystyrene, offering superior performance compared to standard versions. The improved formula ensures advanced thermal insulation, high mechanical stability, and excellent protection against moisture, wind, and noise. Products in the + class achieve performance values compatible with energy-efficient house standards, contributing to substantial long-term savings (over 25 years). Choose GIAS XPS +, the highest-performing thermal insulation solution in the XPS class, far superior to standard products.
High-efficiency XPS with enhanced protection and extended durability

EXTRUDED POLYSTYRENE
GIAS XPS 300 E+

PRODUCT DESCRIPTION

GIAS XPS 300E+ is an extruded polystyrene (XPS) board with certified compressibility at the 300 kPa class, optimized for high thermal performance and improved reaction to fire within the "300+ E" product group. It is designed for applications where smaller thicknesses are required for the same R-value compared to competing products (material savings) and complies with EU requirements for XPS products.

TYPICAL AREAS OF APPLICATION

  • Facades and Plinths: Superior external insulation, especially where insulation thickness must be limited.

  • Accessible Terraces: Under the protective or finishing layer (with residential traffic).

  • Floors: Thermal insulation under screed in residential and commercial buildings.

  • Thermal Bridges: Insulation of concrete structures (beams, columns) for maximum performance.

KEY BENEFITS

  • Premium Thermal Efficiency: Optimized λD value (0.026 W/(m·K)), reducing heat loss by up to 15% compared to traditional XPS.

  • Fire Safety: Euroclass E classification, meeting fire safety standards for surface constructions.

  • Mechanical Resistance: Load-bearing capacity of ≥ 300 kPa, ensuring long-term stability under load.

  • Absolute Impermeability: Closed-cell structure that prevents water absorption and maintains constant thermal performance.

SPECIFICATIONS

Parameter Typical Value Unit of Measurement / Standard
Product Name GIAS XPS 300E+
Reaction to Fire Euroclasa E EN 13501-1
Compressive Strength (at 10% deformation) ≥ 300 kPa / EN 826
Declared Thermal Conductivity (λD​) 0.026-0.029 W/(m·K) / EN 12667
Water Absorption (Long-term immersion) ≤ 0.7 % Vol. / EN 12087
Water Vapor Diffusion Resistance Index μ ≥ 150 – / EN 12086
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DATA SHEET
POLISTIREN EXTRUDAT GIAS XPS 300 E+
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Briotherm
GIAS XPS
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Briotherm
GIAS XPS
Get in touch for guidance on how to use our products or if you have any questions about our products;
International Contacts
Where to find us
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Social Media
Get in touch
We would like to hear any questions you may have, and we are open to communication using our social media channels.

Copyright by GIAS XPS. All rights reserved 2026

Copyright by GIAS XPS. All rights reserved 2022

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