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Old 2017-06-21, 12:23pm
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Speedslug Speedslug is offline
Phill
 
Join Date: Mar 21, 2009
Location: Winnebago, MN
Posts: 2,115
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I wonder if you are getting radiant heat pulsing through the roof?

If you can feel the heat with your hand by holding it up toward the roof then I suggest installing a false roof inside or a second layer of roof over the top outside with ridge venting and soffit inlets.

I painted the cement roof of a place I rented in Guam a very bright white and it really made a difference in the heat of the ceiling.

I also suggest a fan under the bench pointed at your knees.

Creating an insulated ice box under your bench with its only opening right where your knees fit is another thought rather than trying to cool down the entire 16 by 18 building.
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