Schüco passive house façade
Passive house certification means that the Schüco FW 50+.SI and FW 60+.SI systems can now be used to build aluminium façades to the passive house standard. Only Schüco can provide systems of this type.
Schüco FW 50+.SI and FW 60+.SI
The newly developed SI (Super Insulation) versions of the FW 50+ and FW 60+ aluminium mullion/transom constructions impress with their trend-setting system details. The new type of isolator design uses innovative materials to reduce energy losses to a minimum. Inward-facing reflective surfaces on the pressure plates also contribute to the outstanding Uf value of up to 0.78 W/(m2K), including screw factor. The system achieves this value for the passive house-certified version with a glazing thickness of 48 mm.
As part of certification by the PHI, the system met the passive house comfort criterion of Ucw ≤ 0.80 W/(m2K) and was certified as fulfilling the passive house standard with outstanding thermal insulation. This value was calculated and certified by the PHI in accordance with the latest criteria for certifying façade systems, using triple insulating glazing (Ug = 0.70 W/(m2K)) with a façade module of 1.20 m x 2.50 m. In addition to the effects of the pressure plate fixings, the impact of the glazing supports has also been taken into account for the first time.
“The certification has been achieved in the main thanks to an excellent value for the screw factor,” explains Professor Wolfgang Feist from the Passive House Institute in Darmstadt. “In addition, it uses a high-quality spacer and the losses at the glass edge are markedly reduced by means of the glass fibre-reinforced plastic pressure plate. The low thermal conductivity of the pressure plate is also a reason for the minimal impact of the screw factor. Stainless steel has been used for the glazing supports; its thermal conductivity is considerably lower than that of aluminium. The glazing rebate area is filled with very well insulated polypropylene foam.”
To further improve the ecological balance of a building, a system solution is available for FW 50+.SI that allows secure and economical fabrication of building-integrated photovoltaics. The product range also includes various articles, such as mullions and transoms with cable ducts, cable guides and sleeves to ensure simple, secure and economical cabling for PV modules.
As well as Schüco photovoltaics, thermal solutions can also be integrated into the façade. This in turn brings sustainable environmental relief.