"Ivan Vegvary" wrote:

Got my crawl space dug out so I can move around. Want to insulate w/ R19
bats. Joists are 2x6 approx. 24 inches on center. What's the best way to
hold up the insulation? Can't staple the flanges since they need to face up
towards the heated surface. Can't use the "wire struts" since the 24" on
center is only approximate. (± 1/2 inch). Was considering cutting strips
of Mylar and stapling them to the studs under the insulation.

The -1/2 is no problem, but if the spacing is over 24 those wires
don't hold well. How about stapling chicken wire across
perpendicular to the joists?

Jim