vapour barrier under slab? why?

http://findarticles.com/p/articles/mi_m0NSX/is_3_49/ai_114818845

'spandrel' beam system (steel)

http://www.nucorbuildingsystems.com/nbsproductandengineeringmanual/04_14.pdf

timber floors

http://oak.arch.utas.edu.au/tech/construction_details/2_03_1.htm

acoustic insulation for timber floors

http://www.timber.org.au/resources/Acoustic%20Floors(1).pdf

timber floor (heavy duty) construction multi-story buildings

http://www.awc.org/pdf/wcd5.pdf

Rockface Cladding Colours

http://www.slatediscounts.com.au/Products.asp?Display=Rockface-Cladding-Colours

Limestone Types /tiles

http://www.slatediscounts.com.au/Products.asp?Display=Limestone-Types