Soundproofing and sound insulation for housing and capsule surfaces
Heavy layers from HANNO have a stabilizing, stiffening and weight-increasing effect on all metals and plastics. On the one hand, this results in a sound-deadening effect that reduces structure-borne sound radiation and, on the other hand, increased airborne sound insulation due to the additional mass introduced. Airborne sound propagation is successfully prevented.
HANNO offers heavy layers with surface weights of up to 10 kg/m², which are characterized by flexibility - even at low temperatures.
Particularly recommended: Our bitumen-free heavy layers, which as AL variants meet the highest fire protection requirements (HL3, EN 45545).
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Heavy layer
Characteristic properties
(depending on the application)
- Surface weights up to 10 kg/m²
- Stiffening and weight-increasing
- Good adhesion even with overhead bonding (preliminary tests required)
- structure-borne sound absorbing
- Airborne sound-absorbing
- bitumen-free variants
- Fire protection requirements up to HL3 can be met
Product overview
Heavy layer

Hanno®-Protecto pf 810
bitumen-impregnated wool felt board with 1 kg/m² surface weight

Hanno®-Protecto pf 840
Bitumen-based film with a surface weight of 10 kg/m²

Hanno®-HL 4 PEVA
Polymer-based film with a basis weight of 4 kg/m²

Hanno®-HL 8 PEVA AL
Hanno®-HL 8 PEVA, additionally laminated with a robust aluminum foil