Friday, Feb 02, 2007 at 21:30
Hi Mike reminds me of guy camping next to us last year and they got sunburnt under there lightweight tarp.
A plain heavy duty silvered trap is what we use mostly out of convience and it really does work but is not quite as good as a tree because the underside isn't reflective as well , and its heat profile extends down about 300mm allow light air
currents to circulte hot air under the tarp (the higher the tarp the better).
As an experiment I have used double sided building foil silvered on both sides and it is as effective as trees however not as practical (not current stuff blued on one side).
What however really works best is a doubled tarp (two tarps) seperated by 200 to 300mm. Silvered side up and other silvered side down.
Now this is more trouble and we only do it if in one place for 2 or more days (rare).
But its not as hard as one might think , using a standard 12X12 tarp with 5 poles one in middle , the two tarps are just laid out one over the other and they touch in center when erected.
On the 4 outer poles , the lower tarp is clipped onto the poles about 300mm below the top tarp, with poles already set up for this its fairly easy.
The real secret of this though is that it allows the hot air below the top to tarp to circulate and flow away outside the area shaded by the tarps.
The system is as effective as tree shade.
Robin Miller
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