Ceresit Impactum

Hail resistance

Ceresit Impactum System features high resistance against the damaging effects of hail. To simulate the conditions of natural hail, a test in accordance with standard EN 13583:2012 was performed – the ice ball was shot by a cannon until any damage on the surface occurred. Test demonstrated that the hail resistance of our system is: for single mesh system: ~125 km/h, for double mesh system: ~130 km/h.

Ceresit Impactum System hail resistance – results:

Velocity
Ceresit Impactum System
CT 79 + CT 100
Single mesh Double mesh
m/s 35 36
km/h 126 130

Ice ball test: diameter: 40 mm, weight: 40 g, velocity (m/s): 35-36


The hail resistance of any component is rated with classification system called Hail Impact Resistance (HIR). The rating defines the energy at which the facade still shows no damage. Ceresit Impactum System, even with smaller diameter of the ball, outranks HW 5 class – the highest resistance rating for hail.

Classification of hail impact resistance:

Hail resistance Diameter (mm) Mass (g) Velocity (m/s) Rating limit (J)
HW 1 10 0,5 13,8 0,04
HW 2 20 3,6 19,5 0,7
HW 3 30 12,3 23,9 3,5
HW 4 40 29,2 27,5 11,1
HW 5 50 56,9 30,8 27,0

Ceresit Impactum System

Low-resistance system

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