An old parachute as a 'ceiling' under the steel roof... It will slow
the rising warm air from instantly exiting the ridge vent yet allow
moisture exchange...

Good idea! Any idea where I can get old parachutes anymore?

When I was a kid, the old "Army Surplus" store had dozens of 'em.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"