Thank you for your interest in our product!
Do you still have unanswered questions? Maybe you will find your answers here!
The HW system can be used for all buildings that have a continuous bed joint, both for external and internal walls. Many years of experience have shown us that not only brick buildings, but also most stone buildings can have a continuous bed joint.
With our HW partners, we are the right contact for your refurbishment and renovation project throughout Europe. In the case of capillary rising damp in masonry, we offer you the solution with our patented HW stainless steel barrier, which separates and insulates the wall in just one work step thanks to our unique working method.
We are looking for further cooperation partners who want to do sustainable and reliable work and offer the most efficient method of wall drying themselves.
We look forward to receiving an inquiry from you as a B2B customer as well as a B2C customer!
With the patented HW stainless steel barrier, we can dry out walls in just one work step. The stainless steel plate with the HW tip is driven into the masonry with the help of the HW impact tools, separating it and sealing it at the same time. Settlement is reduced by compacting the joint mortar and the stability of the masonry remains unaffected!
As a result of drying out, the brick increases its thermal insulation capacity and reduces your heating costs.
Drying out the walls above the stainless steel barrier improves the indoor air quality and reduces potential health risks.
Because our mechanical barrier, due to our choice of material
- Permanently tight
- rot-proof
- controllable
- maintenance-free
- Environmentally friendly (no chemicals)
is.
Historic buildings are our specialty. Thanks to our process, where the cutting and insertion of the sharpened HW stainless steel plates as a horizontal barrier takes place in just one work step, the existing joint material is compacted when the plates are driven in. No subsidence can occur.
No. The dead weight of the building is too high to displace the entire building over a wave height transverse to the grooving due to wind attack when the building dries out on 4 sides.
Practice has so far shown that no condensation damage occurs on the inside of the masonry if the wall is sufficiently thick in the area of plastered metal barriers. This is due to the favorable heat transfer between the metal panel and the masonry on the upper and lower sides as well as the low thermal conductivity of the panel cross-section, which is only 1.5 mm thick. As a result, the temperature of the metal panel largely corresponds to that of the masonry.
The capillary transport coefficient of bricks remains the same. However, the capillary water transport is completely interrupted by the horizontal barrier, as stainless steel has no capillarity. Above the barrier, there is no replenishment of water from the ground, so the wall dries out.
The wall remains damp below the barrier. Above it, the moisture decreases over time due to evaporation and diffusion. The drying time depends on the wall thickness, porosity, outdoor and indoor climate.
Horizontally the same as before. The barrier stops the capillary rise from below into the masonry.
Fine-pored mortars favor stronger capillary water transport and slower drying. Coarse-pored structures have a lower capillary suction.
The porosity class indicates how open or tight a masonry is and therefore how much water it can hold. The effectiveness of the barrier is independent of the degree of moisture penetration of the masonry.
Stainless steel panels are considered to be mechanically durable and resistant to ageing. Injection processes can lose their effectiveness if they are not completely saturated or if cracks form.
There is practical evidence and expert opinions, but hardly any systematic, independent long-term meta-analyses. The theoretical durability of stainless steel clearly exceeds 50 years. We know this from experience, as we have been dry-walling with stainless steel since 1975.
Local compressive and shear stresses occur in the bed joint area. If carried out correctly, the load-bearing capacity of the masonry is maintained, as no masonry is removed and the flow of forces is therefore not interrupted.
At most very slightly, as the dead weight and inertia of the wall are far more decisive.
If stainless steel (e.g. V2A/V4A) is used, the risk of corrosion is low. V4A is preferable in areas exposed to high levels of salt or chloride.
V2A is sufficient for normal exposure to moisture. V4A offers increased resistance to halogenated media such as compounds with fluorine, chlorine, bromine iodine chlorides and sulphates - relevant for road salt exposure, in coastal areas or old stables.
Practically not. The stainless steel plate is thin and has a negligible effect on heat transfer, as the plate takes on the temperature of the masonry due to its low thickness.
The wall adjusts to a new equilibrium: dry above, permanently damp below the barrier.
Yes, provided planning and execution meet the requirements for sealing against rising damp and static concerns are taken into account.
Stainless steel requires a lot of energy to produce, but also has a long service life and can be recycled by type. Injection resins use less material, but have chemical components. Stainless steel is sustainable over its life cycle.
Low to none if carried out properly by trained personnel.
That the main cause of damp masonry is capillary rising damp.
For masonry without a continuous bed joint, with highly irregular joints, with hard cement joints or if there is pressing water.
Do you still have questions? Then write to us - we will be happy to answer all your questions about wall drying and our patented HW stainless steel barrier.
