Builders must incorporate a minimum number of features in the following areas:
-lot and site development
-energy efficiency
-water efficiency
-resource efficiency
-indoor environmental quality
-home owner education
The more points accrued, the higher the score.
The Standard includes mandatory items and suggests that higher thresholds be met in several categories. A new threshold - "Emerald" - was added to denote the highest achievement in residential green construction.
National Green Building
TheEmeraldHouse
Over the next few months we will be documenting the projects and procedures that go into a green home. Please check the blog for progress.
Building to the new NAHB’s National Green Building Standard is something every builder should strive for. Building to the Emerald level means you want to build your home to the highest environmental standards. This is the reason we are building our next home to this level. There are many innovative projects and practices that make up a Emerald home. There are also options that have been around for many years that only require planning and thought.
Emerald -NGBS highest level of green
SPECIFICATIONS
Main Floor (slab) - 2900 Sq. Ft.
Ext. Walls - 2x6 with polyurethane spray foam insulation
Ext. Siding - Vertical Cypress wood rain screen & cement fiber board
Roof - Metal Standing Seam over 2x12 with polyurethane spray foam insulation
Walks & Patio - Stamped Concrete
Flooring /Main - Stained Concrete
Heat & Air - Geothermal Heat pump
Plumbing - PEX , low flow fixtures
Electrical - Energy Star fixtures
Appliances - Energy Star