The Sophab family
Pick your scale
The same curved, solar-passive shell — sized from a cover over a heat pump to a whole home in a dome — plus earth tubes to temper the air underground. Here's the whole family.
The smallest Sophab — a curved canopy that shelters your outdoor heat-pump or A/C unit from wind, snow and ice so it runs steadier all winter. Free DIY plans.
The arch grown into a four-season greenhouse — captures solar heat to grow food year-round, even through a Canadian winter. Better still with earth tubes.
A glazed arch that wraps one wall of your home — winter sun in, summer heat out, a bright four-season room in between. Engineered and stamped.
The arch at full scale — a whole home wrapped in a solar-passive shell. Our first at-scale build is going up now in Fredericton.
Take off the peaked roof, convert it to a flat living deck, and crown it with a GreenPhab — a new level of space, a rooftop garden, and solar heat for the home below.
Buried pipe that pre-heats incoming air in winter and pre-cools it in summer using the ground's steady temperature — cutting your HVAC load. Standalone or add-on.
The same arch at commercial scale, sold on ROI: a rooftop shell that cuts heating, cooling and billed demand, and a facade shell that adds leasable square footage to a wall you already own. With a payback calculator.
Start with the free assessment. Find your home on a map and we'll model the right Sophab for your wall, your budget and how much sun your site gets.