Advantages:

In pre-concrete applications, it provides complete and permanent adhesion to the structural concrete poured over it in every area, preventing water migration between the structure and the waterproofing layer.
The system does not require protective concrete. There is no need for additional excavation to achieve the protective concrete thickness.
It can be washed with water jet.
It is not affected by structural settlements and moves with the structure.
It is quick and easy to apply.
The joints provide excellent adhesion.
It is resistant to salt water.
It provides positive waterproofing in all areas.
It minimizes the risk of water leakage by keeping all negative elements (such as eyelets, cracks, cold joints, segregations, rod or tie rod holes, etc.) behind the waterproofing in backfilled foundation walls.
It provides a single-layer application on basement and foundation walls increasing application speed.
It is a much more cost-effective and secure system than competing systems

EXTERNAL ® SYSTEM

The ORVIS External System is a waterproofing system that incorporates primary and secondary insulation materials. It completely encloses the structure in all areas, protecting it from water and moisture.

External System components move in conjunction with the structure, ensuring complete adhesion at all points under the basement and foundation walls.

It creates a durable waterproofing shell, ensuring water and moisture resistance for the reinforced concrete and reinforcement throughout the building's service life.

With the External System, you can achieve long-lasting and secure waterproofing with a very fast application.

EXTERNAL ® SYSTEM products

External 350

It is a new generation waterproofing membrane, specifically designed for waterproofing applications of single-faced load-bearing foundation walls constructed under basement and with blind formwork method. It is SBS bitumen-based, 3.5 mm thick, with a polyester felt carrier, a special mineral coating on top and polyethylene foil on the back. It is intended for pre-concrete application and can provide permanent and full adhesion in all areas with the structural concrete poured on it, and does not require protective concrete.

External 450

It is a new generation waterproofing membrane specially designed for under basement waterproofing applications, SBS bitumen based, 4.5 mm thick, with a polyester felt carrier, higher point pressure resistance, with a special mineral coating and polyethylene foil on the back surface. It is intended for pre-concrete application and can provide permanent and full adhesion in all areas with the structural concrete poured on it, and does not require protective concrete.

External 1200

It is a new generation waterproofing membrane that is specifically designed for waterproofing applications of single-faced load-bearing curtain walls constructed under basement and with the blind formwork method. It consists of an acrylic polymer adhesive layer laminated onto an HDPE layer, 1.2 mm thick, and covered with a special protective layer. It is intended for pre-concrete application and can provide permanent and full adhesion in all areas with the structural concrete poured on top, and does not require protective concrete.

External SA

It is a new generation self-adhesive waterproofing membrane for post-concrete application, specially designed for waterproofing applications of vertical and horizontal areas, with a 1.5 mm thick, removable protective film-coated bitumen rubber-based waterproofing layer and a cross-coated HDPE (high density polyethylene) foil on the outer surface.

External SA