Floor trusses are tough to insulate as is car decking and beams. Suggest you fasten with cord or wire stapled to the truss webs.

Another good way is to use nylon netting to hold the insulation in place. Or use chicken wire if animals are going to be a problem.

[This message has been edited by GlennG (edited April 09, 2002).]

We had our home inspected for termites last year and we had insulation in the crawl space under the floor. Our termit inspector said that is a great place for termit to get into the house and they recommended pulling it all out. We have had previous termite damage and our neighbors too, so we are trying to minimize termites. Anyway - I've heard this from several people, so before you replace it, you may want to check into this. I'm told all new homes do this, but the insulation gets damp and makes a great place for bugs and stuff.

I used electric fence wire, which doesn't rust and is easy to work with. It was labor intensive, but the job is done and I rechecked it the other day. It looks great.

Never heard of that, glad to hear you got it fixed. How far apart is the wire. (Is it going to keep animals out of the insulation?)

Glenn

[This message has been edited by GlennG (edited November 01, 2002).]

The wires won't keep anything out. They're just close enough together to keep the bats from sagging.
Now the critters won't knock it down because the wire is fixed on both ends, not loose like steel insulation support rods.
And those steel rods rust whereas this wire doesn't. (I think its aluminum.)

[This message has been edited by rpxlpx (edited November 05, 2002).]