Tuesday, 16 June 2009

What's your albedo rating?

From the style of the last blog you have probably guessed that it was written by J. I am quite looking forward to moving into her new home because in my home there is a need for a few improvements. The location, space and basic furniture are more than we expected BUT:
The hospital toilet paper seems to have been accidentally switched with the carpenter's sandpaper.
There is plenty of hot water from the solar panels, but the pool of water that springs from the shower tray and covers the floor causes problems when trying to dry your feet .
Oh and Jane forgot to mention that we live in an oven. We expected to find the temperature in the summer to be very hot (currently 90 F) but our home continued to get hotter even during the night. I inspected our flat roof to find that it was covered in black asphalt, an albedo rating of 0.1 (solar reflectance for the unscientific). It absorbed the heat from the sun during the day and then gently baked us throughout the night. I acquired some white 'plastic' paint and set to work to increase our albedo rating to 0.7 - although I'm not sure what colour to paint it in the winter. P

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