It's reasonable for people to avoid rust in their home, but here's one instance that rust can be not only functional, but pretty cool looking, too — weathered steel siding.
A 242, A 588, and A 606, are all types of steel, more commonly known as weathering steel, or its trademarked name, COR-TEN. It was developed to eliminate the need for painting steel, and instead develops a layer of rust after a time of being exposed to the elements. This layer of continues to develop a rusty patina, which can vary depending on time and location. COR-TEN can come smooth or corrugated, as sheets or panels, and can be installed as a rain screen. Steel is made with recycled content, is recyclable, and used in this application, it can be a very durable, modern siding option.
1 Ten Broeck Cottage, via Messana O'Rorke
2 Howard Street Residence, via Architectural Record
3 Centre d'Examen du Permis, via Dezeen
4 Dovecote Studio, via Architonic
5 Cabins at Tryon Farm, via Re-Nest
6 Folded Corten House, via Arch Daily
7 Element House, via Arch Daily
8 Modern Cambridge Cottage, via Apartment Therapy
9 The Titan, via Jonathan Segal Architect
10 Camano Residence, via Build LLC
(Images as linked above)