An important feature of the RISE system is the possibility to add or remove cables in a later stage without  disassembling the whole penetration. 

It's so simple. Just cut away the layer of sealant at both sides of the penetration in a tapering shape. Pull the cable through one of the empty sleeves. If the empty sleeves are not fitting to the size of the cable to be ducted, a number of insert sleeves must be removed.

Install a fitting insert sleeve in the open space and pull the cable through the fitting insert sleeve that has now been installed.

Refill the openings cut in the putty layer at both sides of the penetration with FIWA sealant. Press the sealant down firmly and smooth it with a damp cloth.