Hi @coachdarionziegler could you explain to me this answer?
What is the concept of life cycle analysis? I thought this was an estimate of how much it would cost for a building to sustain itself till it need repairs.
I realize that since the stone is thinner than the foundation can need less structure I guess this would be the ideal value engineering option since the other loses thermal mass.
What other derivative value engineering benefits might be generated by this change?
There may be additional life cycle and energy cost savings for the heating and cooling systems, as a function of diminished thermal mass.
Incorrect. The opposite is true: Life cycle heating and cooling costs decrease with increased thermal mass. Thermal mass is the ability of a material to absorb and store heat energy (though, theoretically, it also mitigates the cooling load). An increased amount of energy is required to change the temperature of materials with high thermal mass, such as concrete, bricks, limestone, etc.; however, these materials also maintain their temperature longer. In practical matters, increased thermal mass allows a building to stay colder in warm weather and warmer in cold weather (similar to a cave).
There may be structural concrete savings, as a function of reduced bearing load on the foundation.
Correct. This is simple math; more limestone bearing on the foundation weighs more. If the stone is thinned, the weight is reduced. The engineer now has the option to decrease the depth of the foundation walls, footings, caissons, etc., thus saving concrete costs.