Project Description

VURBGlazing cost was reduced by increasing U value from 3.33 to 3.61. This was achieved by adding 30% more insulation to the walls and 14% more insulation to the ceilings.

Proposed residential dwelling (class 1a) is located in the city of Hillwood. It consists of 1 level with a net conditioned area of 147m2.

Through VURB method we managed to reduce overall glazing U-value by more than 8%.

Here are some more details on the degree of insulation and glazing thermal performance for the Hillwood project:

Item NCC 2019 Reference Building Proposed Building
Floor Suspended floor modelled as concrete slab on ground:
No insulation added to the concrete slab on ground
R1.0 added to the slab edges. 
R1.0 added to the waffle pod slab
R3.5 added to the Lounge, Master bed and Ensuite suspended floors
R1.0 added to the slab edges.
Internal and common walls No insulation added to the timber stud walls adjacent to conditioned spaces,
No insulation added to the timber stud walls adjacent to unconditioned spaces,
No insulation added to the timber stud walls adjacent to conditioned spaces,
R2.5 added to the timber stud walls adjacent to unconditioned spaces,
External walls R2.24 added to the masonry veneer with 110 mm thick masonry
Solar absorbance: 0.6
R2.9 added to the single brick veneer walls
Solar absorbance: 0.68
R2.9 added to the external stud walls with wall cladding,
Solar absorbance: 0.6
R2.9 added to the stonework walls,
Solar absorbance: 0.6
Roof/Ceiling R4.91 added to the pitched roof (23 degrees) with 2.4m high plasterboard ceiling
Solar absorbance: 0.6
R5.6 added to the ceilings under Colorbond Trimdek roofs,
Solar absorbance: 0.93 
External shading All external eaves and heritage trees have been incorporated into the analysis based on available drawings. No new shading proposed
Glazing All glazing:
U-Value: 3.33, SHGC: 0.67
All glazing:
U-Value: 3.61, 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.