Glazing cost was reduced by increasing U value from 1.75 to 3.5. This was achieved by adding 34% more insulation to the walls and 22% more insulation to the ceiling.
Proposed residential (class 1a) is located in the city of Pascoe Vale. It consists of 2 levels with a net conditioned area of 44m2.
Through VURB method we managed to reduce overall glazing U-value by more than 100%.
Here are some more details on the degree of insulation and glazing thermal performance for the Pascoe Vale project:
|Item||NCC 2019 Reference Building||Proposed Building|
|Floor||No insulation added to concrete slabs on ground,
No insulation added to intermediate floor,
|R1.5 added to the concrete slab on ground,
Total R-Value: R1.86R1.0 added to the slab edges,No insulation added to the intermediate floor between gymnasium and loft/storage,
Total R-value: as per reference case. R2.0 added to the PDR intermediate floor,
Total R-value: R2.75
|Internal and common walls||No insulation added to the timber stud walls||R1.5 added to the timber stud walls,
Total R-value: R1.86
Solar absorptance: as per reference case
|External walls||R2.24 added to the Class 1a masonry veneer with 110 mm thick masonry
Solar absorbance: 0.6
|R3.0 added to the brick veneer walls,
Total R-Value: R3.39
Solar absorbance: 0.6 (brick red) R3.0 added to the external weatherboard walls,
Total R-Value: R3.32
Solar absorbance: 0.35 (off-white)
|Roof/Ceiling||R4.91 added to the pitched roof (23 degrees) with 2.4m high plasterboard ceiling
Solar absorbance: 0.6
|R6.0 added to the cathedral roofs.
Total roof/ceiling R-Value: R6.36
Solar absorbance: 0.43 (Shale grey)
|External shading||All adjoining structures and features, window shading and shading devices have been incorporated into the analysis based on available drawings||As per reference case.|
|Glazing||Ground floor glazing:
U-Value: 1.93, SHGC: 0.66 First floor glazing:
U-Value: 1.66, SHGC: 0.66
U-Value: 5.0, SHGC: 0.63GF-Awning window:
U-Value: 5.0, SHGC: 0.63FF-Fixed windows:
U-Value: 1.91, SHGC: 0.62
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.