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Thermal imaging - Frequently asked questions
Environment Unit - February 2008
environment.unit@kirklees.gov.uk
Why did you do this aerial thermal image survey?
Home energy efficiency and Fuel Poverty are very serious issues for Kirklees Council. The aim of the thermal
survey is to raise the awareness of residents who might not have considered that there are schemes available
that can help to improve their property. The Warm Zone scheme, in conjunction with Kirklees Council, aims to
bring the standard of insulation in every property in the district up to recommended levels at no cost to the
householder.
If your home is not energy efficient it can increase your fuel bills and can even cause ill-health if you are
unable to adequately heat your home. Please use the links under the map to find out about any schemes that may help
you.
Why does my neighbour have a better score than me when I know they don't have as much insulation?
The map is based upon the highest heat recorded from the building, you might have a better average score, but
there is a point within your property with a higher score than theirs; this might be from a chimney or flue, or
it might be from a section of your property where you have a heat spot.
Why are you using the coloured blocks and not the actual thermal image?
The colour is used to represent the highest heat recorded for the area of the coloured block. The actual
aerial thermal image is based upon the ‘greyscale' of black through to white and subtle variations are difficult
to interpret by eye. By using the coloured block it will give you an idea of how your property is performing and
encourage you to look at why it has scored the way it has.
When did you do the aerial thermal image survey?
Blue Skies Ltd. was commissioned to undertake the survey and carried out three flights in March 2006. They
flew in specific weather conditions: a clear, cold night with no snow cover on a mid-week evening. These
conditions give the greatest chance of a householder being home with the heating turned on. Of course, it is
possible that a poorly performing home was empty, unheated and shows no heat loss on that particular night.
Why is the shape of my building wrong?
The map was made using Ordnance Survey information from 2006, which was the most accurate information
available at the time. New buildings or changes to outbuildings / extensions may not have been identified by
Ordnance Survey at the time of publication as such there will be inaccuracies in a project of this scale which
are unavoidable.
I've installed insulation recently, why hasn't my home changed colour?
The aerial thermal image survey was completed in early 2006 and at present there is not a fixed date for a
repeat.
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