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efficiency_now:building_envelope:straw_as_insulation_material

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efficiency_now:building_envelope:straw_as_insulation_material [2023/08/07 15:20] – yaling.hsiao@passiv.deefficiency_now:building_envelope:straw_as_insulation_material [2023/08/07 16:11] (current) – yaling.hsiao@passiv.de
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 **Best: Bales on edge or upright.** Here, the thermal flux is perpendicular to the direction of the straw stalks, called ‘on edge’ or ‘upright’, see figure 2; the thickness of insulation is in this case 36 cm. Taking into account a wooden frame construction with 6 cm posts at 1 m centres, with clay plaster on the inside and lime plaster on the outside, the U-value of the wall will be 0.15 W/(m²K) at an overall thickness of 42 cm. With bales laid flat, resulting in 48 cm insulation thickness and 54 cm overall thickness (λR = 0.080 W/(mK)), the Uvalue is 0.17 W/(m²K). So, bales on edge are preferable regarding the Uvalue, as well as the space required for construction. **Best: Bales on edge or upright.** Here, the thermal flux is perpendicular to the direction of the straw stalks, called ‘on edge’ or ‘upright’, see figure 2; the thickness of insulation is in this case 36 cm. Taking into account a wooden frame construction with 6 cm posts at 1 m centres, with clay plaster on the inside and lime plaster on the outside, the U-value of the wall will be 0.15 W/(m²K) at an overall thickness of 42 cm. With bales laid flat, resulting in 48 cm insulation thickness and 54 cm overall thickness (λR = 0.080 W/(mK)), the Uvalue is 0.17 W/(m²K). So, bales on edge are preferable regarding the Uvalue, as well as the space required for construction.
  
-[{{.:stroh_als_waermedaemmung_.png?200 |**Figure 2**: Bale orientation © PHI }}]+[{{:picopen:stroh_als_waermedaemmung_.png?200 |**Figure 2**: Bale orientation © PHI }}]
  
 **Checklist for straw bales.** The following characteristics should be assessed for construction bales: **Checklist for straw bales.** The following characteristics should be assessed for construction bales:
efficiency_now/building_envelope/straw_as_insulation_material.1691414433.txt.gz · Last modified: by yaling.hsiao@passiv.de