Triangle, 155E Louver, Rotterdam, NL

The Rotte originates in the South Holland part of the Groene Hart. It is this peat river that gives the city of Rotterdam its name.

Here, a house has been fitted with unique louvers. By Sunshield, commissioned by Rotterdam-based construction company Ermax Bouw.

What makes this project even more unique than usual is that the louver systems are not mounted directly on the building, but on trusses. As a result, the sun protection is slightly removed from the wall.

Two louver systems have been placed on this. The pentagon on the front facade is almost 1 metre high on the left, 5 metres in the middle and over 2.20 metres on the right. The total surface area is no less than 30 m2.

A second louver system is located on the left side facade. This is rectangular in shape, has a width of 4.20 metres and a height of almost 1 metre.

The systems are operated remotely. Users can easily open and close the louvers using a remote control. Or at any desired position in between, which is infinitely variable.

When determining the slat, the residents ultimately opted for the louver type 155-E. This is an aluminium slat with a width of 155 mm.

The profile of the 155-E is not completely flat, but shows a depression at the top. As a result, the slats not only overlap, but also interlock.

The slats of this residence are finished in RAL 7016, anthracite grey. The other aluminium parts are coated in RAL 7021, black-grey.

Both coatings are finished with a gloss level of 70%, also called high-gloss. The plastic parts, such as the clips that hold the slats, are black.