The announcement comes just days after the Trump administration announced plans for a 25% tariff on steel and aluminium imports.

The insulation, a combination of polystyrene panels and spray foam, are applied to the outside steel frame of the home and then covered up with whatever material the architect calls for.

Origami Solar has begun making steel solar panel frames in the United States after commissioning its first automated line at Priefert Steel’s Benton, ...