As part of a rammed earth typology analysis, I produced this technical drawing detailing construction of an insulated Stabilised Rammed Earth Wall and skylight, with a rainwater storage tank.
Drawing labels:
1. Structural Silicone Sealant. 1206x20x8mm, with guttering channel.
2. Stainless Steel Glazing Brackets (12mm deep glazing channel, 42mm in length), screwed into EDP flashing (2mm thick), into EPDM, into plyboard (1525x365x15mm), into timber stud (120x55mm). At 226mm centres.
3. Gutter Reservoir 225x340mm, with drain gratings (200x98x11mm) on 500mm centres. Drains via drainpipe to local collection point.
4. Double Glazing panels, 1200x2200mm on 5º incline. 4mm pane, 10mm cavity filled with argon gas, 4mm pane, Low-E coating.
5. Roof Beam Support Plate 150x83mm to spread point load across rammed earth wall. Flush with rammed earth internal surface. 603mm below parapet ridge.
6. Concrete Lintel 1200x400x120mm, with reinforcement to tie SRE and concrete together.
7. Fired mud-brick, for erosion protection. 280x125x25mm, set 100mm into the rammed earth during construction.
8. Embedded cross-battens 55x32mm, at 370mm centres, set in during construction.
9. SRE (Stabilised Rammed Earth) wall. 2800mm from concrete footer to parapet, 400mm deep (250mm at parapet)
10. Expansion joint 250x35mm. Insulation between concrete slab and foundation footer.
11. Concrete Footer 850x400mm base, rising 400mm at 400mm width, set 150mm back from outside edge. Damp proof course between concrete footer and rammed earth construction.
12. Timber beam, 300x120mm, supporting timber upstand for roof light. Fixed on beam support plates (see ‘5’) at both ends.
13. Internal Gasket, Silicone rubber 10x6mm.
14. Timber rafters 220x83mm, with mortis and tenon join to beam. At 350mm centres, infilled with wool batt insulation.
Laurence Łucasz 