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Carbon Footprint Analysis for Foundation at Laie Marriott

January 21, 2020

The production, transportation, and use of concrete is one of the largest contributors of CO2 emissions during the construction of a building. The following summarizes the carbon footprint of the Wafflemat foundation system used versus the micro pile foundation initially considered for the Laie Marriott built recently in Oahu, Hawaii.


Size of foundation: Approximately 38,000 sf
Micro pile specs: 225 piles, 10” diameter, 70 feet deep to support 8” slab
Wafflemat specs: 8,000 12” x 19” x 19” Waffleboxes to support 6” slab
Concrete estimated in micro pile design: 2,302 cy
Concrete used in Wafflemat design: 1,872 cy

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Also in White Papers and other Documentation

A Developers View of Wafflemat

May 19, 2020

The development strategy created by Century 22 Communities is based on the belief that a home, and its surrounding community, should be designed and constructed to last 100 years. In order to achieve the 100-year sustainability goal, C22C has gone to great lengths to analyze and re-design all the systems and components of a typical home to improve the reliability and reduce life-cycle cost.

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Wafflemat Slabs Provide Superior Performance

January 21, 2020

This paper provides a discussion and summary of the performance of Wafflemat ® slabs on grade. The discussion contained herein is based upon studies performed by the geotechnical firm of Purcell, Rhoades & Associates (ref. 1), as well as observations of the performance of installed Wafflemat foundations (Appendices A-D) over a twenty-year period. Post-tensioned, slab-on-grade construction and mild reinforced mats have been used for decades to provide adequate support for residential and light commercial construction.

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Lowering the Carbon Footprint When Using Wafflemat

January 21, 2020

A Climate Change Gas Emissions Analysis on the Production, Transportation, and Use of Concrete in Slab Foundations. “Use of the Wafflemat foundation-forming system in residential home construction can reduce the level of climate change emissions by 20% [the equivalent of 4 to 9 tons less CO2 released into the atmosphere of an average 1,800 sf home] when compared to the use of conventional slab foundations. Other emissions reductions are also projected.”

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