SP • SP-E

In-wall roller blinds – the SP and SP-E systems are primarily used in newly constructed buildings. However, after making necessary changes to the lintel, these products can also be installed in existing structures. It is important to plan for the use and installation of these types of solutions during the building design phase, which allows for more effective utilization of the functional features of these systems. In-wall roller blinds provide excellent thermal insulation because they do not interfere with the structure of windows, doors, and lintels, thereby not affecting the energy balance of the building. Moreover, these products fit perfectly into the façade, becoming an integral part of it.

 

The front of the roller blind box also serves as a base for any finishing material (such as plaster or clinker), making the box an inconspicuous element of the building’s facade. The SP and SP-E systems were developed to provide protection against heat loss. This was particularly appreciated by the Passive House Institute in Darmstadt (PHI), which recommended the use of both solutions for boxes with a size of 165mm or less in passive buildings. A prerequisite is a properly executed installation in a previously insulated lintel, in accordance with the manufacturer’s recommendations. In addition, the window joinery should meet appropriate parameters, including the Uw heat transfer coefficient of the window being lower than 0.80 W/(m²K) and the Ug coefficient of the glass not exceeding 0.70 W/(m²K).

 

An additional advantage of in-wall roller blinds is the possibility of using an independently operating mosquito net, which allows for protection against insects. As with adaptive systems, the curtain of the in-wall roller blind can be made of foam-filled, plastic, or extruded profiles.