The Ideal "Puna" House Design

[Youser]

John

Can you give us more information on building materials and designs - e.g.

Do you build forms and pour concrete for walls?
Do you use the hardi board as siding or instead of drywall?
What material do you use for roofs?
What do you do near the ocean where rust is a problem and therefore anything metal is at risk?

I am interested in strong, sustainable design and would like more information.

Thank you.