Embodied energy is certainly worth considering, but major retrofits of homes built in the 60's or earlier are hugely inefficient and result in a home that looks better, but performs no better energy wise. You CANNOT retrofit to Zero Energy with out significant cash outlays or at all.
Putting a new carb and a dash mat on a 70's Oldsmobile will not justify the embodied energy argument. Melt that sucker down and build a Tesla that lasts 3x longer, can be powered by the sun and is better for you in the meantime.
Our homes are also much healthier for the owners, with proper ventilation, filtering, and low/no voc materials.
Putting a new carb and a dash mat on a 70's Oldsmobile will not justify the embodied energy argument. Melt that sucker down and build a Tesla that lasts 3x longer, can be powered by the sun and is better for you in the meantime.
Our homes are also much healthier for the owners, with proper ventilation, filtering, and low/no voc materials.