Major missing specification assumptions for the LCA modelling.
|Material quantity for the roof structure||An eToolLCD template for the roof structure was used. It calculates the material quantity based on the roof area and pitch.||The template is based on common construction practices.|
|Ceiling insulation||For houses with ceiling insulation but no specification, an R-value of 2.5 was assumed.||This is a common R-value used in the ceiling.|
|Construction materials in the heritage part of House C||Limestone walls and suspended timber floors.||These were common building materials used in the early 1900s in the City of Fremantle.|
|Staircases||An eToolLCD template for timber staircases was used.||The template is based on common construction practices.|
|Suspended floor structure||An eToolLCD template for elevated wooden stilts was used when specific details about the underfloor structure were not available.||The template is based on common construction practices.|
|Ducted air conditioner duct length||An eToolLCD template for duct air conditioner was used. The length of the duct was estimated based on the house habitable area.||The template is based on common construction practices.|
|Tiled areas||The tiled area of bathrooms, kitchens and laundries was estimated.||0.5 mm thick tiles have a relatively small embodied energy compared to a brick wall. This estimation does not have a significant impact in the overall embodied energy of the house.|
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