Project Description
Glazing cost was reduced by increasing U value from 1.92 to 2.49. This was achieved by adding 33% more insulation to the walls and 6% more insulation to the ceilings.
Proposed residential dwelling (class 1a) is located in the city of Mornington. It consists of 2 levels with a net conditioned area of 295m2.
Through VURB method we managed to reduce overall glazing U-value by more than 20%.
Here are some more details on the degree of insulation and glazing thermal performance for the Mornington project:
| Item | NCC 2019 Reference Building | Proposed Building |
| Floors | No insulation added to the concrete slab on ground R1.41 added to the suspended floor No insulation added to the intermediate concrete floors | No insulation added to the concrete slab on ground R3.5 added to the ground floor suspended floors above enclosed subfloor R3.5 added to the upper floor unenclosed suspended concrete floor, No insulation added to the intermediate concrete floors adjacent to conditioned zones, R1.5 added to the intermediate concrete floors/ceilings adjacent to unconditioned spaces: |
| Internal and common walls | No insulation added to the timber stud walls R2.24 added to the Class 1a masonry veneer common walls with Class 10a building | No insulation added to the internal walls adjacent to conditioned spaces, R1.5 added to the internal walls adjacent to unconditioned spaces, R2.5 added to the Class 10a (garage) to class 1 building common walls, |
| External walls | R2.24 added to the Class 1a masonry veneer with 110 mm thick masonry Solar absorbance: 0.6 No insulation added to the Class 10a 110mm thick masonry veneer external walls Solar absorbance: 0.6 | R3.0 added to the single brick veneer walls with Dulux Acrotex coating, Solar absorbance: 0.73 R3.0 added to the stud walls with Archclad aluminium cladding, Solar absorbance: 0.9 R3.0 added to the stud walls with Archclad aluminium cladding, Solar absorbance: 0.69 No insulation added to the garage external brick walls, Solar absorbance: 0.73 |
| Roof/Ceiling | R4.91 added to the pitched roof (23 degrees) with 2.4m high plasterboard ceiling Solar absorbance: 0.6 No insulation added to the class 10a pitched roof (23 degrees) with 2.4m high plasterboard ceiling Solar absorbance: 0.6 | R5.2 added to the existing flat roofs: Solar absorbance: 0.55 R5.2 added to the multi-planed felt skillion roof, Solar absorbance: 0.73 No insulation added to the class 10a (garage) external roof, Solar absorbance: 0.55 |
| External shading | All external eaves and shadings have been incorporated into the analysis based on available drawings. | New external shading device to the Kitchen South west-facing glazing (W029) is proposed |
| Glazing | All Ground floor glazing (43% of all glazing): U-Value: 2.51, SHGC: 0.57All upper floor glazing (57% of all glazing): U-Value: 1.45, SHGC: 0.34 | All glazing: U-Value: 2.49, SHGC: 0.52 |
If you would like to save on your building construction costs, contact our team at Energy Compliance and one of our friendly staff will discuss the opportunities to save in your costs. Energy Compliance offers a unique service guarantee:
If we can’t reduce your construction costs by more than twice the value of our service fee, and you decide not to use our report, then you won’t have to pay the remainder of our invoice.