ETICS with bonded glass panels

Preliminary works

1. The pre-requisite for the work is an exact installation plan with consideration of all penetrations; this plan should be done by the planner.

2. The final installation planning and the resulting parts list are carried out after completion of the reinforcement layer, based on the facade dimensions determined on site.

3. For larger glass surfaces, the scaffolding planning must also be coordinated with the joint grid of the glass elements.

4. Especially with larger glass elements, sufficient space must be available on platforms or scaffolding for all the foreseen works.

5. Following glass qualities can be used: SGG Emalit ESG-H / SGG SERALIT ESG-H (6 mm) with polished edge.

6. Fresh concrete surfaces and not totally dry masonries must be waterproofed with the 1-comp. normal-setting waterproofing slurry weber.tec 930.

7. Check the substrate evenness. Uneven surfaces must be levelled out with a suitable levelling render to achieve optimum evenness before bonding the insulation boards.

8. When installing the mineral wool lamella insulation board weber.therm MW 041, special attention should be paid to a flat substrate at this stage.

9. The reinforcement layer on top of the boards should be applied twice. Fix the screw dowels weber.therm STR U 2G through the first reinforcement layer.

10. The second reinforcement layer at the latest should meet the increased requirements for evenness. The larger the glass panels are, the more severe the requirements are. As a guideline, the tolerance is approx. 1 mm per meter.

Fixing of glass panels

11. Beforehand the installation plan is transferred to the facade.

12. weber.therm style Klebemörtel 2K is mixed section-by-section. Its potlife is approx. 30 minutes.

13. The glueing operation for the glass panels is carried out according to the floating-buttering method, i.e. one layer on the substrate and one layer of the panel backside. For applying the right amount of glue and for achieving a perfect bond the use of specific tools is mandatory.

14. The adhesive mortar is applied onto the backside of the glass elements with the notched trowel weber.sys Schichtdickenkelle, providing a regular layer thickness of 3 mm.

15. First apply a contact layer onto the substrate (the 2nd layer of weber.therm 301), using a flat trowel. The adhesive mortar is applied onto the substrate, using the rake weber.sys Großflächenrakel equipped with the notched blade weber Zahnleiste no. 2 (notch 5 mm).

16. When applying the adhesive to the wall, use the rake weber.sys Großflächenrakel, equipped with the notched blade weber Zahnleiste no. 2 (notch 5 mm) will provide an optimal bonding all over the surface.

17. The glass elements must be installed immediately after the adhesive has been applied. For large elements, support structures or wedges facilitate exact positioning.

18. Professional lifting aids facilitate installation.

19. With light pressure, the elements can be brought into their final position ...

20. ... and precisely aligned flush.

21. Immediately after laying remove remaining glue from the joints and the glass panels.