HYDROZOL® HBM PRO (SBS-PEP) - Hydro insulation membrane from SBS modified bitumen covered with mineral slate and reinforced with polyester

Hydro insulation membrane from SBS-Premium modified bitumen covered with mineral slate and reinforced with polyester, with high elasticity and flexibility, tensile strength 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 applying on hardly reachable areas with complicated construction;

- SBS-Premium modification of the bitumen;

- durable hydro insulation finishing layer of flat and inclined roofs; 

- excellent properties in a corrosive surrounding (acids, bases, salts, industrial gases and others);

- high resistance to UV rays and aging;




Scope of use

HYDROZOL® HBM PRO (SBS-PEP) 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 polyester. 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 polyester reinforcement increase the membrane`s strength and makes it highly flexible and elastic. The product is perfect for applying on hardly reachable areas with complicated construction, multiple angles. In such places where high flexibility of the membrane is needed in order for it to be placed properly. Although the membrane has high elongation properties, it does not tear or puncture easily. If the temperature of the surrounding is changing, the membrane still has its water impermeability.

HYDROZOL® HBM PRO (SBS-PEP) is used as single-layer hydro insulation or as a finishing layer in a multilayered hydro insulation (over bituminous membrane without slate) of flat and inclined roofs. It is suitable for subterranean and dynamically loaded hydro insulations (canals, tunnels, parking areas, bridges and others).

The membranes are covered with colored mineral slates (grey, green or red), and from the lower side – with polyethylene film. The mineral slates protect the membrane from mechanical and external atmospheric conditions, especially from aging caused by UV rays. The polyethylene film preserves the adhesive properties of the lower part of the roll.

Longitudinally, from one of the sides, the membrane has a 8 cm – strip without slate which is meant to be the overlapping area when applying. No adhesives are necessary since the application of the membrane is performed by torch heating.

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 4,5 kg/m²
Roll 10 m² with weight 5,0 kg/m²
Roll 8 m² with weight 6,0 kg/m²


Colours of the slate

grey (SBS-PEP-S); green (SBS-PEP-Z); red (SBS-PEP-C)