PU Injection Resins
WEBAC® 1403
- Classic Line
Damp proof course and exterior waterproofing, bank building in Rzeszów
The bank building in Rzeszów, Poland, was severely affected by moisture damage. In order to preserve the building fabric in the long term and enable continued use of the basement rooms, the basement walls were comprehensively renovated.
The bank building in Rzeszów had suffered considerable moisture damage. The basement area in particular, with its 50 cm thick brickwork, was saturated vertically and horizontally by up to 60%. The persistent moisture had weakened the masonry, severely damaging the building structure. In addition, the high humidity posed a risk to the documents and files stored in the basement rooms.
To halt the progressive deterioration of the building, it was retrofitted with a waterproofing system. The renovation consisted of two main measures:
Damp proof course (dpc) with WEBAC injection resins
To interrupt the transport of water through the capillaries of the masonry, a post-construction damp proof course (dpc) was installed using WEBAC 1403. The waterproofing measure was carried out in two steps:
- Sealing large cavities/voids with WEBAC PU injection foam resin
- Use of PU injection foam resin for filling cavities/voids
- Preventing uncontrolled flow of the sealing resin
- Injection of WEBAC 1403 for waterproofing
- Low-viscosity 2-component polyurethane resin
- Injection until the masonry is completely saturated
Post-construction exterior waterproofing with WEBAC 5611
In addition, external waterproofing was applied retrospectively to protect the masonry from moisture penetration.
- Exposing and cleaning the exterior masonry
- Plastering the exposed surfaces
- Application of WEBAC 5611 in two steps
- Vertical waterproofing against water pressure up to 6 bar with a layer thickness of just 1 mm
After a drying phase of three months, the basement was fully usable again. The moisture problems were permanently eliminated, allowing the bank to use its archive rooms in a dry and safe manner.
Products Used
- View details
WEBAC 1403 is a long-track-record proven PU injection resin, particularly valued for its safe and controlled application. Upon contact with water, it cures into a closed, waterproof, and dimensionally stable resin with a fine pore structure. It is suitable for sealing, crack injection, and stabilizing masonry and concrete, and is used for post-construction damp proof courses (dpc) against capillary rising damp.
Dispersion for Walls and Floors
WEBAC® 5611
- Classic Line
View detailsWEBAC 5611 is a reactive bitumen-acrylate dispersion that adheres well to a wide variety of substrates and has crack-bridging properties. The hydrophobic effect of the bitumen component creates a waterproof seal with reliable protection against leaching by salts harmful to structures. This makes WEBAC 5611 suitable for surface waterproofing against hydrostatic pressure in building construction, civil engineering, and historic preservation.
