In-Town Gambrel

Green Building Approaches

• 16.28kw PV system
• 4” of EPS foamboard insulation over vapor barrier in crawl spaces
• 6” of EPS foamboard insulation applied to the interior face of crawl space walls
• 4” of EPS foamboard insulation under the basement slab and between slab and foundation wall
• 2-1/4” of XPS insulating drain board over exterior face of basement walls
• 2” of continuous closed-cell (low GWP) spray foam applied to the interior face of basement walls
• 3-1/2” of Roxul mineral wool between 2×4 studs on the interior face of basement walls
• 2×6 wall framing with 5-1/2” dense-pack cellulose insulation
• Walls are wrapped with 4” of European fiberboard insulation to manage thermal bridging
• 2×12 roof framing with 12” of dense-pack cellulose insulation
• Roof is covered with 4-3/4” European fiberboard insulation to manage thermal bridging
• Fully ventilated roof above fiberboard roof insulation
• Acrylic sheathing tapes used at wall and roof sheathing planes to achieve exceptional air-tightness
• European triple-glazed aluminum-clad wood windows with u-values of 0.13 (roughly R-8)
• Ducted air-source heat pump system heats and cools the entire house
• Tankless propane-fired, condensing water heater eliminates storage energy losses
• European energy recovery ventilation system has an independent mini-duct distribution system
• Engineered red cedar shingle panel siding installed over a ¾” ventilated drainage plane
• Exterior trim manufactured primarily from recycled fly ash and rated for ground contact
• 100% LED lighting
• Low-flow water fixtures throughout