What is Blue Rock?

[john the architect]

When I built my first home in HPP it had a raised level supported by two reinforced concrete water tanks in "castleblock", an ICF concrete from. That composite structure will even better than a solid concrete first level to resist high heat and maintain its structural integrity.

Anyone else who built a home with "castleblock" lower level would also have lava resistance.
If you are into ultimate survival for your building, that is the stuff.

John Maloney
310.562.0362
johnmaloney3@me.com
Hawaii Architect AR8082
www.jmagreenbuilding.com