Council Minutes - Town of Cambridge

COUNCIL MINUTES
TUESDAY 20 DECEMBER 2011
constructed with metal sheeting having a solar reflectivity index exceeding 40% unless
approved by Council."
Applicant's submission
The applicant has provided the following justification for the amendment to the development
application.
We seek dispensation from Clause 8 of Local Law 43 for a Colorbond 'Surfmist' roof as
the position and location of the roof will not result in excessive glare for the neighbours or
the streetscape.
The house has well-established trees both at the front and rear of the property and the
streetscape itself is one that has many mature and shady trees. These trees provide
significant cover for the house and the roof to direct line of sight from all side including
east-west along Dumfries Road and North Banff Road.
Also as the house is setback, and runs at a receding angle of over 14 degrees to
Dumfries Road, such that the adjacent houses at No. 6 and 10 Dumfries Road serve to
obscure the roofline from view.
We have designed the renovations for 8 Dumfries Road in an effort to achieve a 5 star
energy efficiency rating. We have done this through a combination of best practice design
principles and thermally efficient material, e.g. Double glazed windows and thermally
efficient building panels. A roof colour such as Colorbond 'Surfmist' is a critical component
in achieving high energy efficiency as it significantly reduces solar absorption.
We note that there are other houses within our area that have roofing with >40%
reflectivity and have included pictures and addresses for reference.
Neighbour submission
In the course of advertising the application to surrounding neighbours, one (1) submission was
received and is summarised below:
Submission One (No. 7 Cromarty Road)
My concern is that the reflection of sun could be onto my house and my property.
I think it will impact on the light during the sunny days as well, which could be very
dangerous.
It will be great if the owner is able to change the roof colour to another one rather than offwhite.
Assessment against the performance criteria
Roof Reflectivity
Roof Reflectivity
Performance criteria:
Proposed
"Surfmist" colorbond to upper
floor addition
Acceptable development provision
Zincalume (silver) and Surfmist (offwhite)
colorbond are not permitted as
they are considered to exceed 40%
solar reflectivity index.
Where, due to the position, location and pitch, the proposed roofing is not considered to result in
excessive glare upon neighbours and the streetscape.
Notes:
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