Working through the abstract representations of buildings and structures for Model Village, I have embraced the pitched roof as an vital element, and the title gable/hip describes its two basic forms.
The gable roof is the most simple and recognisable as a symbol of home and shelter. These are three of my favourite recent references for it: a decorative wooden house I came across last year in a store in Lisbon (and have since been unable to find who made it); the curious windowless building en route back to London from Berlin; and SCARCH by Not Vital at Hauser & Wirth, Somerset. 
3D visual1 of the project’s Basic House, with gable roof.
I use the gable roof for the Basic House, the template model that all the other models must work next to in terms of proportion and scale. I experiment with the pitch and rise of both gable and hip roofs (so far in the form of 4 panels) as well as those of a circular yurt and hexagonal teepee.  
The models represent types or categories of buildings and structures, but with occasional exceptions like The Shard and Canary Wharf.
  They are out of scale with each other in the real world but have each retained their own proportions. The absence of scale strips the power that comes with size from the larger buildings. It allows them to viewed objectively as mere shapes, as objects that can now relate instead directly with each other.

13D visual by G Hartley.