Each channel was first cleaned with system cleaner TH610 and sanded with a grinding disc. After removing the dust, the treated sections were wiped down with primer PR130. After a flash-off time of around 15 minutes, a 10 cm wide strip was sanded on both sides of each joint, and the first layer of FRANKOSIL® 1K Plus with embedded fleece was applied. This was then topped with a second layer of liquid waterproofing. Three days later, a third application of FRANKOSIL® 1K Plus (approx. 200 g/m²) was applied. The fresh layer was broadcast with oven-dried quartz sand, and the excess was removed — eliminating the need for laborious surface preparation on-site.

To protect critical transitions from moisture, a metal sheet was placed over each treated joint and fixed in place with reinforced adhesive tape. This method created a permanently elastic connection between channel segments that could accommodate the thermal expansion of the aluminum.
FRANKOSIL® 1K Plus bridges cracks up to 2 mm, easily handling such movements. Each pair of channel elements was then sealed with a layer of liquid waterproofing, embedded fleece, and a second layer of waterproofing.

Outdoor work is always a challenge for waterproofing professionals: strong sunlight, wind, rain, and cold all influence the properties of construction materials — including working time, overcoatability, and load-bearing capacity.
To avoid delays caused by poor weather, the FRANKOSIL Turbo Shot accelerator was mixed into the FRANKOSIL® 1K Plus, enabling the sealed surface to be fully load-bearing after just 1.5 hours. Using Turbo Shot is incredibly easy: shake the bottle, mix it into the base component, and apply. It makes even unstable weather days manageable on-site.