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--- planning:refurbishment_with_passive_house_components:step-by-step_deep_retrofit_and_building_integrated_facade_roof_on_a_million_program_house [2016/09/28 15:04] – francis.bosenick@passiv.de
+++ planning:refurbishment_with_passive_house_components:step-by-step_deep_retrofit_and_building_integrated_facade_roof_on_a_million_program_house [2016/09/28 15:04] – francis.bosenick@passiv.de
@@ Line 57: / Line 57: @@
 [{{:picopen:fig_4_deep.png?600|Figure 4: Typical electricity production from the BIPV compared to expected demand from the building}}]
-\\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ The a-Si modules are attached with screws and an external aluminium extrusion to the furring (that is part of the chosen façade insulation system), running vertically up the façade and rest on L shaped fittings also screwed into the furring. Using point fasteners to hold the modules in place may have been a simpler solution, if not for the reason that FEM modelling showed that the wind load would pose a risk of breaking modules at stress concentrations near the fasteners. Because of fire regulations on buildings higher than eight stories, the furring is made of metal. Wood furring would have been preferred considering the environmental impact. On each side, the glass is protected from the mounting system parts by foamed EPDM rubber strips (Figure 5). On the roof, the mounting system is similar with the main difference that modules are overlapping so that water will move from the module above to the one below.
+\\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ \\ The a-Si modules are attached with screws and an external aluminium extrusion to the furring (that is part of the chosen façade insulation system), running vertically up the façade and rest on L shaped fittings also screwed into the furring. Using point fasteners to hold the modules in place may have been a simpler solution, if not for the reason that FEM modelling showed that the wind load would pose a risk of breaking modules at stress concentrations near the fasteners. Because of fire regulations on buildings higher than eight stories, the furring is made of metal. Wood furring would have been preferred considering the environmental impact. On each side, the glass is protected from the mounting system parts by foamed EPDM rubber strips (Figure 5). On the roof, the mounting system is similar with the main difference that modules are overlapping so that water will move from the module above to the one below.
 [{{:picopen:fig_5_deep.png?600|Figure 5: Horizontal section of wall}}]