Documentación gráfica Ayuntamiento de Säynätsalo. Hoja 1
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5.37 Wall section at council chamber. A Solid brick wall of 26.5 x 7 x 13 cm bricks. B Flashing to prevent water running down the face of the wall from penetrating the roof. C Concrete beam inside brick wall to support masonry over opening. Aalto felt no need to express the structural forces in the lintel. D 12 mm wood trellis supported by 1½ x 4" wood beams. This is another of the numerous wood screens used to filter light into the building. E Roof construction of 2 x 4 joists with 3" cork insulation and ¾ board on blocking with wood deck below. F Copper roofing. G Window. H Brick cavity wall of two 13 cm brick wythes with 7 cm insulation and cavity. This is the only cavity wall in the building, probably to decrease its weight since it is suspended. I Double concrete slab. J Wood soffit of shiplap boards 7/6 x 1½ on blocking with copper edge. K Double wood window. Documentación gráfica Ayuntamiento de Säynätsalo. Hoja 6
5.38 Interior wall section at council chamber roof. A Standing seam galvanized metal roof supported by wood decking. B Four layers of insulation board with ceiling of 1.8 cm wood boards below. C 10 x 14.5 cm wood beam with 2 cm thick beam cover. While the bottom members of the truss are exposed, some of the top chords are covered with trim to match the ceiling. D Vent space. An opening just below the coping allows air to penetrate this cavity. E Two 12.5 x 22 cm wood beams. Unlike the small beams, these are exposed. F Monolithic brick wall. G Copper coping. The edges of the roof, which are visible, are copper, while most of the roof is the less expensive galvanized steel. H Radiating intermediate truss members. Aalto explained the complex design as the result of differential thermal movements between the interior and exterior of the roof. I Bottom chord of truss. Documentación gráfica Ayuntamiento de Säynätsalo. Hoja 7
5.40 Council chamber window. A Double wood window. B Brick wall. C Tongue and groove pine paneling. D Pine fins from tongue and groove boards. E Niche. This was to hold a painting by Fernand Léger, and the finned screen was a method of providing indirect natural light. Documentación gráfica Ayuntamiento de Säynätsalo. Hoja 8
5.42 Mullion types. 1 Typical window: A Fixed wood mullion with stop. B Operable wood sections to make possible cleaning the interior face of the glass. C Glass. All the fenestration is double-glazed to retard heat loss. D Wood molding to cover joint between brick and window frame. 2 Mullion at courtyard. The mullions between courtyard and corridor are wider and project less than those of the library. The outer facing is black and may be a different species of wood. E Fixed window mullion. F The joints between fixed and operable sash are tapered to prevent the joint from opening as the wood expands and contracts. The small widening of the joint prevents capillary action from drawing water through it. G Glass stop. H Glass. I Mullion cover. This extends below the sill to create another louvered screen. 3 Mullion at library: J This mullion is deeper in order to enhance the sense of a thin louvered screen on the south library wall. K Operable section with glass stop. L Glass. 5.45 Section of door at main corridor. A Glass or plywood panel. B Wood slat door. The doors are detailed to give the appearance of a louvered screen or a primitive wood slat gate. C Wood jamb. D Masonry or concrete wall covered with wood slats and eternit. E Recessed base covered with eternit. F Threshold Documentación gráfica Ayuntamiento de Säynätsalo. Hoja 9