HYDROZOL® НВМ PRO (SBS-ST) - Hydro insulation membrane from SBS bitumen with fiberglass fabric reinforcement

Hydro insulation membrane from SBS-Premium modified bitumen with fiberglass fabric reinforcement, extremely strong and resistant to tear and puncture in wide operating temperature range: from -25°C to +100°C


- excellent elasticity in both low and high temperatures (-25°C to +100°C);

- for hydro insulation of constructions subject to broad movement, vibrations and dilatations;

- SBS-Premium modification of the bitumen;

- high strength, resistance to tear and puncture and dimensional stability;

- suitable for subterranean and dynamically loaded hydro insulations;

- high resistance to aging.





Scope of use

HYDROZOL® HBM PRO (SBS-ST) is highly flexible hydro insulation membrane which provides secure and long lasting protection from water penetration. The product is made up by elastomeric polymers (SBS) high-quality bitumen content, which is layered on both sides with fiberglass fabric. The SBS-Premium high modification of bitumen with elastomeric polymers provides excellent low-temperature flexibility. It also guarantees long-term durability (25 years) and resistance to aging at extreme operating temperature range (from -25°C to +100°C) without being influenced by frequent and abrupt change in ambient temperature. 

The membrane is used as first layer of multilayered hydro insulations of flat and inclined roofs. It is suitable for subterranean and dynamically loaded hydro insulations (canals, tunnels, parking areas, bridges and others). It is recommended for hydro insulation of constructions subject to cyclic movements, vibrations and considerable dimension change.

HYDROZOL® HBM PRO (SBS-ST) is reinforced by fiberglass fabric which improves the physical and mechanical properties of the membrane as it increase its strength and resistance to tear and puncture. Even when the membrane is cut or torn off the reinforcement keep the membrane intact and prevent its further damage. The glass veil provides dimensional stability of the bitumen at low and high temperature, as well as it guarantees the maintenance of the initial form even when subjected to extremely high loads.

The membranes are both sides covered by polyethylene film which preserves the adhesive properties of the rolls during the storage. The application of the membrane (using torch) is extremely strong thus adhesives are not necessary.

HYDROZOL® HBM PRO (SBS-ST) is a component of the multilayer system of bituminous hydro insulation. It cannot be used as finishing layer. It should be protected by HYDROZOL® HBM PRO (SBS- STP), hydro insulation membrane with SBS bitumen and fiberglass reinforcement covered by slates.

If used properly, the product has minimum 25 years of service life.



Complies with the requirements of European and Bulgarian standards and measures up to:

European Standard
EN 13 707
EN 13 969


Indicative consumption

1,09 m² per 1 m² surface



Roll 10 m² with weight 3,5 kg/m²
Roll 10 m² with weight 4,0 kg/m² 
Roll 10 m² with weight 4,5 kg/m²
Roll 10 m² with weight 5,0 kg/m²