Thermographic images

8 Feb 2012: DNC writes: At this time of cold weather, it is an ideal time to get out with a Thermographic camera - forms the image from infrared radiation. This is a FLIR T400 which I have borrowed from my Faculty at the University of Nottingham. It's chinese made, and very easy to use, and copying the images to computer is like copying from a memory stick! There are a few things to learn, but it only takes a few experimental pictures to get the balance right. After more experience, there are deeper subtleties one can employ. But the initial results are very good, and I had the coldest night of the entire winter, ensuring maximum contrast between interior and exterior temperatures.

My first picture, the car parked just after driving it a couple of miles.

The remaining images are of the Peveril Solar house, which is has a cavity wall with 100mm full cavity fill.

Front wall of the house, revealing conduction at window heads

Window of my home-office, revealing the thermal bridge of the lintel

SW corner, including the Surya Sunbox, showing that there is a warm zone
below the Sunbox. The temperature inside the sun box is almost always warmer than
the surroundings, even at night, so I am not surprised to see the brickwork being warmer,
and warmth leaking out at the edges.

Interior ceiling corner of my home-office. There is a cold bridge where
the blockwork goes up into the Loft. 

This could be useful for the West Bridgford Ecohouses group, to check if their insulation has been done effectively, especially at junctions and corners.
  I have to return the camera tomorrow, but if you are nearby and read this, and want your house thermally photographed, then please email me on dnicholsoncole@gmail.com  . I can reborrow it at any reasonable time up to end of February. Beyond that, the weather may be too mild to be worth testing.