Flat roof Roofs

HardRock

ROCKWOOL HardRock is a high-strength product specially developed for the flat roof system, widely used in the construction and renovation of metal or concrete base roofing. 

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Product properties

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FM Certification Steel deck roof thermal insulation class 1(4450)
Fire performance Class A1 (EN 13501-1)
Thermal conductivity
HardRock 60 0.039 W/(m.K) (ASTM C518)
HardRock 80 0.040 W/(m.K) (ASTM C518)
Water Absorption(Partial Immersion) Less than 0.5kg/m2 (EN 1609 : 97)
Water repellent ≥ 99% (GB/T 10299)
Water Vapour Absorption Less than 1% (ASTM C1104 / C1104M-95)
Compressive strength
HardRock 60 Deform 10%, > 60 kPa (EN 826)
HardRock 80 Deform 10%, > 80 kPa (EN 826)
Point load resistance at 5mm deformation
HardRock 60 > 500N (EN 12430)
HardRock 80  > 700N (EN 12430)
Tensile strength > 7.5 kPa (EN 1607)
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HardRock 60 0.039 W/(m.K) (ASTM C518)
HardRock 80 0.040 W/(m.K) (ASTM C518)
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HardRock 60 Deform 10%, > 60 kPa (EN 826)
HardRock 80 Deform 10%, > 80 kPa (EN 826)
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HardRock 60 > 500N (EN 12430)
HardRock 80  > 700N (EN 12430)
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Specification & sizes

Product density and thickness can be customized according by needs.

Product Description Thickness (mm) Width (mm) Length (mm)
HardRock 60 160kg/m3 50 600 1200
HardRock 80 180kg/m3 50 600 1200

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documents

 

 

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ROCKWOOL Building Insulation-20200810
ROCKWOOL Building Insulation-20200810

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ROCKWOOL China_202002
ROCKWOOL China_202002

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ROCKWOOL Flat Roof Insulation_202002
ROCKWOOL Flat Roof Insulation_202002

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