The Medway Handyman wrote:
John Rumm wrote:
The Medway Handyman wrote:
Stuart Noble wrote:
Guy Dawson wrote:
Stuart Noble wrote:

You need insulation between the rafters if you want the loft cool
in summer.
It's not so much the keeping the loft cool but the reflection of
sunlight back into space to avoid heating the atmosphere.

Prof Chu's point is that a lot of solar heating is caused by
building being heated by the sun and radiating the heat back into
the atmosphere. If the sunlight could be reflected back into space
by white surfaces
then we'd help slow global warming.
White tarmac too maybe.
HTF are you going to keep that clean? :-)
Pressure washer with a *long* hose powered by a solar panel pointed at
all the white roof tops. ;-)


Long hose no probs, how big a panel we gonna need for a 2.9kW induction
motor?

The size of a small village ought to do it! (or one could sue John
Prescott as a "pair'a'bollock" reflector)

--
Cheers,

John.

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