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					Originally Posted by  Raven
					 
				 
				@ Nebe? 
i have a barn section that needs insulation bad 
it's like a walk in freezer set at  20 degrees 
so, if  i  have a company foam it 
are the truss's coated too  so i can cover up 
the foam  with say plywood  and not see it? 
			
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 Foam fills the rafter bays, not the trusses. Google foam insulation and look at images.