1. Composite Decking
Composite Decking, as the name suggests, is a composite of many different materials, one of which is always plastic. The materials used are quite often recycled and is also blended with wood in the form of wood fiber or sawdust.
We used sisalation on the outside of the framing of our house. Sisalation is basically a double layer of reflective aluminium foil, with fibreglass insulation between the two layers.
In our case it was a building requirement to meet energy efficiency standards, and it should help to keep the house cool.
From the Sisalation Web Site (http://www.sisalation.com/): SisalationÂ®, in its simplest form, is a lamination of aluminium foil to kraft paper, reinforced with fibreglass and flame retardant adhesive.