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

Hydro insulation membrane from SBS bitumen with fiberglass fabric reinforcement, extremely strong and resistant to tear and puncture in wide operating temperature range: from -10°C to +85°C


- excellent elasticity in both low and high temperatures (-10°C to +85°C);

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

- SBS  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 (SBS-ST) is a highly resistant hydro insulation membrane which consists of both sides layered bitumen on a fiberglass fabric reinforcement. The SBS modification of bitumen with elastomeric polymers provides excellent low-temperature flexibility. It also guarantees long-term durability and resistance to aging at extreme operating temperature range (from -10°C to +85°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 (SBS-ST) is reinforced by fiberglass fabric which improves 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 reinforcement provides dimensional stability and guarantees the maintenance of the initial form even when subjected to   extremely high loadings, as it provides long lasting water impermeability. The property of the fiberglass not to be influenced by the temperature of the surrounding gives the opportunity to apply the product both at very low and very high temperature.

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 (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 (SBS-STP), hydro insulation membrane with SBS bitumen and fiberglass reinforcement covered by slates.

If used properly, the product has minimum 10 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 2,0 kg/m² 
Roll 10 m² with weight 2,5 kg/m²
Roll 15 m² with weight 3,0 kg/m² 
Roll 10 m² with weight 3,5 kg/m²
Roll 10 m² with weight 4,0 kg/m²