working from the inside we have half inch plasterboard,(drywall), plastic sheet , 6x2 studwork infilled with fibreglass insulation , half inch sterlingboard (coarse chip board, basically large wood chips glued together) , another plastic membrane , breathable this time , supposed to allow any moisture to exit from the timber/fibreglass and not allow any to entre from outside , then a 2inch cavity with stainless steel ties to a 4 inch thick block wall . the blocks we used are recon stone... basically a fine concrete block guilotined in half so the cut faces outward vaugly look like stone....the cut face gives a random textured surface and the blocks are 3, 6 or 9 inches vertical and 9 to 18 inches horizontal laid in a random pattern in basically 9 inch courses.
the interior walls are 4 x2 inch studwork with plasterboard both sides.
the studwork arrives on site in 8 foot high panels with the exterior board and membrane factoty fitted. panels are easily manhandled by 2 men.
std construction in uk is outer skin of block maybe plastered or bricks or stone with a concrete block backing. , air gap, rigid sheet insulation , lightweight blocks and an interior plaster skim
the lightweight blocks have a higher insulation than heavy concrete breeze blocks, cos clinker from coal fired power stations is added to the mix... all the greenies have shut the coal fired power stations so theres a national shortage of lightweight blocks....
