8011 aluminum foil roll is a metal composite material (8xxx series) with aluminum-iron-silicon (Al-Fe-Si) alloy as the core, specially designed for building roof thermal insulation system. Its thickness ranges from 0.02–0.2mm, and it is supplied in the form of rolls, which supports customized slitting (width 100–1600mm). It takes into account both lightweight (density about 2.7g/cm³) and high ductility (O-state soft), and is an ideal functional layer material for roof insulation, waterproofing and energy-saving transformation.
Specification of 8011 aluminum foil roll for roof insulation:
– Thickness: 0.02–0.20 mm, commonly used 0.05mm (economic type), 0.1mm (enhanced type)
– Width: 100–1600 mm, supports customized slitting
– Roll length: customized on demand (typically 100–500 meters), roll core diameter ≈75mm
– Material state: 8011-O (soft state), elongation ≥20%, easy to form
– Surface treatment: glossy/orange peel/embossed, orange peel enhances diffuse reflection and anti-slip properties
– Tensile strength: ≥80 MPa, ensuring construction tear resistance
Core characteristics and advantages of aluminum foil for roof insulation:
- Excellent thermal insulation
The low thermal conductivity of aluminum foil (≈0.04 W/m·K) can reflect more than 97% of infrared radiation, significantly block heat transfer, reduce roof heat absorption by 30% in summer, reduce indoor heat loss in winter, and increase the overall energy saving rate by 20%2.
Combined with thermal insulation core materials such as polyurethane or rock wool, insulation aluminum foil forms an efficient thermal insulation barrier, which is suitable for various structures such as sloping roofs and flat roofs.
- Long-lasting waterproof and moisture-proof
The aluminum foil molecules are dense, providing an absolute water barrier to prevent corrosion of the roof structure caused by rainwater penetration and extend the life of the building.
The moisture-proof performance inhibits the growth of mold and is especially suitable for high humidity areas.
- Strong environmental durability
Resistant to UV aging and acid and alkali corrosion (salt spray test>1000 hours), applicable temperature range -50℃~150℃, stable performance in extreme climates.
The service life can reach more than 25 years, which is much higher than traditional asphalt membranes.
- Convenient and efficient construction
O-state (soft state) material is soft and easy to cut, and can fit special-shaped structures; it supports gluing or mechanical fixing, and the average daily laying area of a single person exceeds 200 square meters.
The surface can be embossed with orange peel pattern (anti-slip design) to enhance construction safety and adhesion of the composite layer.
Typical application scenarios of 8011 aluminum foil roll for roof insulation:
– Composite insulation board covering
Composite with XPS/EPS board, used for light steel structure roof, reflecting heat radiation and blocking condensation water.
– Waterproof roll reinforcement layer
Laminate SBS modified asphalt layer to improve overall puncture resistance and durability.
– Green energy-saving transformation
When renovating old roofs, it can be laid directly on the insulation cotton to quickly improve the insulation level (such as K value ≤0.4 W/m²K).
8011 aluminum foil roll is an ideal choice for thermal insulation of modern building roofs. With its excellent thermal insulation performance and excellent durability, it meets the construction industry’s demand for high-quality insulation materials.
