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Thermal Bridging wall type panel solutions
Thermal bridging is the movement of heat across an object that is more conductive than the materials around it. The conductive material creates a path of least resistance for heat. Thermal bridging can be a major source of energy loss in homes and buildings, leading to higher utility bills.
A significant thermal bridge can be created in residential home construction by the studs in the walls, which could account for 10-20%. As the insulation is put in-between the studs and are not continuous as per image below.
Thermal bridging is not accounted for in most energy rating software‘s. Resulting in dwellings achieving a greater star rating by a factor of 10-15% than in reality, a home rated at 6 stars is actually 5.5 stars.
To combat the problem of thermal bridging, the studs must be covered with continuous insulation such as a high quality wall wrap or foam. Either can be installed in the inside or outside side of the stud wall. (refer to diagram on the right in top image)
EPS & Hebel Wall Solutions
a couple of popular choice wall cladding types that provide a continuous insulation is an EPS (expanded polystyrene) and Hebel wall type solutions. EPS panels are usually 75mm thick and provide an R value of R2.0 on average on top of the insulation batts that would be place in between the studs listed below are products that have a continuous insulation quality:
Unitex which is a type of EPS wall panel solutions are manufactured in Geelong Victoria:
https://www.unitex.com.au/unitex-baseboard-cladding
Bonder's Equitilt wall cladding system features an EPS layer on the inside with varies thickness from 50mm -250mm for total R value between R1.2-R6.0 and either a metal or fiber cement type cladding on the exterior for a decorative purposes:
http://www.bondor.com.au/equitilt
Hebel offers varies thickness and finishes also:
https://hebel.com.au/segment/h...
Kooltherm K17 Insulated Plasterboard is a insulation core, sandwiched between a front facing of tapered edge gypsum based plasterboard, suitable for internal use: