Specialty home in Napa vineyard

Napa is the heart of the California Wine Country, and a recent Wafflemat project was completed in the middle of a major vineyard. The developer did a detailed hard dollar cost and CO2 comparison of foundations systems, building one home with W/mat, another with a slab-on-grade foundation. Three points:

- Hard dollar costs for W/mat were $46,129 less ($72,414 for slab on grade vs. $26,285 for W/mat) when exact amounts for concrete, steel cable, iron rebar, aggregate, diesel fuel, and labor are compared.

- Total foundation cycletime was reduced from 14 days for the slab on grade to 8 days for W/mat, a 57% difference.

- W/mat released 46,000 lbs less CO2 than the alternate foundation (86,700 lbs for slab on grade vs. 40,700 for W/mat), a 53% difference.

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