Fibro is an abbreviation for "fibrous cement" - or "fibrous asbestos cement" and is a building material made of compressed fibres cemented into rigid sheets. Manufactured and sold until the mid-1980s "Fibro" in all its forms was a very popular building material.

The fibres involved were almost always asbestos based. The use of "Fibro" has since been banned in Australia due to its asbestos content.

Wikipedia Entry For Fibro

Fibro Sheet Picture    Fibro Shack Picture