Every position

One arch, every position on the building.

A Sophab is named for where it goes, not for its shape — the same curved, solar-passive shell over a wall, a roof, a driveway or a whole house. We are shipping the wall one first. Everything else on this page is worked out on paper and honest about it.

Available now

Two of them you can have today

☀︎

Sophab Solarium — the wall

A glazed arch that wraps one wall of the house you already own. Winter sun in, summer heat out, and a bright four-season room in between — for about a third of what a conventional addition costs. Find your home on a map and see it on your own wall, with a build price, in about five minutes.

Free to look
🛡️

Heat-Pump Sophab — the smallest one

A curved canopy that shelters an outdoor heat-pump or A/C unit from wind, snow and ice so it runs steadier through winter. Build-it-yourself drawings in three sizes, for ground- or wall-mounted units, yours for nothing.

Free plan
Design research

The other positions, worked out on paper

Each of these is a real design — geometry, load path, and in some cases a costing model — for the arch in a different position. None of them is a product you can buy yet, and we would rather say so than take a deposit against a drawing set that does not exist. Read any of them; tell us which one you want next.

🏗️

RoofPhab — the roof

Take off the peaked roof, convert it to a flat living deck, and crown part of it with a glazed arch: a new level of space, a rooftop growing season, and solar heat for the home below.

Design research
🏠

Solarship — the whole house

The arch at full scale, wrapping an entire home in a solar-passive shell. It captures more winter sun than any other position, and it is the largest thing the rib geometry has been taken to.

Design research
🌱

GreenPhab — the growing space

The arch as a four-season greenhouse, with a thermal store under the floor to carry heat from afternoon into night. Better still with earth tubes feeding it ground-tempered air.

Design research
🚗

DrivePhab — the driveway

An open, daylit shelter over the driveway that keeps snow and ice off the car and gives you a bright, dry work bay. Free-standing, or leaning on the house down a side yard.

Design research
🌬️

Earth tubes — under the ground

Not an arch at all, but the same idea one storey down: buried pipe that pre-heats incoming air in winter and pre-cools it in summer off the ground's steady temperature. Pairs with any position above.

Design research
📬

Tell us which one

Which position gets built second is a real question and we would rather you answered it than we guessed. Pick one and we will write to you when it becomes something you can buy — not before, and about nothing else.

One email, once
Which one next?

Tell us the position you want

📬 Write to me when this one is ready

We will email you once, when that position becomes a product you can actually buy. It is a confirmed opt-in list, so you will get a link to confirm first, and one-click unsubscribe in anything we send.

A different conversation

Own a commercial building?

On a commercial building the arch does one of two jobs: over a flat roof it cuts heating, cooling and the billed demand that dominates a commercial bill — or against a dead wall it adds leasable square footage for about half the cost of a build-out.

This one is not self-serve and we are not pretending otherwise. There is no map to click and no instant price; a commercial building needs its own numbers. Send us the building and we will run the payback on your own rates and rents, itemised down to the line, with every assumption written out.

A glazed timber-ribbed arch over half a two-storey commercial roof, the rest left as open deck with cafe tables and shade sails

The wall one is ready. See it on your house.

Start now — it's free →