Ulma Architectural Solutions has developed a unique drainage solution as part of remodelling works at the entrance square of the Sanctuary of Montserrat in Barcelona.

The project was shaped by different rows of U100.10R channel with a GR100UOC slotted grating. They were arranged in perpendicular shape in relation to each other with the shape of a grid. One of the biggest obstacles to overcome on the project was he knots where the two rows intersected. The concern of both the works' management and the constructor was to resolve this problem in a technically appropriate way, avoiding if possible the handling on site of channels and slots.

Ulma suggested a cross-shaped piece for the channel and another for the slot.This proposal was hydraulically more efficient, with an appropriate shoulder between pieces, improving the finish and simplifying the works in terms of cost and completion.

Due to its inverted 'T'-shape, the grooved slot stands out for its appearance and it is a system which integrates perfectly into the flooring (whether concrete, cobble or slab).