Renovated from a series of additions to an existing small cabin, this vacation home’s interior is a mixture of antique wood from the owner’s family farm and native woods from their property in the Berkshires. The stairs are particularly unique with pine and naturally curved maple slabs acting as stair stringers. The house is highly insulated and is designed for net zero in energy use—it actually produces more electricity (via PV panels) than it consumes. The house is also air sealed and insulated to levels above code (R-35 walls and R-62 cathedral ceilings). To help meet the energy-efficiency demands, triple-glazed Integrity® windows were installed to withstand the harsh Massachusetts’ climate.