The fencing wire known as "chicken wire" has about 1 inch openings, is
lightweight and inexpensive, and works good for this.
Don Young
"aaa" wrote in message
...
20 year old house that has insulation falling as it is coming apart in
some areas due to age of insulation in crawl space. This is not very
servere, but looks bad and will probably get worse. Scale of 1 to 10
I would say a 3. I could replace the insulation or just add pushing
the old up into the void, use more of those wire struts, but thought
of a maybe better idea.
Insulation is really not in that bad of shape. Sometimes wires fall
out and allow insulation to fall too.
What if I bought some of this:
http://www.aeromfg.com.au/styrofanfold.html
"Plastic / Plastic
Dow High Performance Underlayment P/P is a water resistant Blue
extruded foam insulation sheet which is heat bonded between strong
plastic film facers and pin-perforated.
Available in 6 mm (1/4") thickness. (9.5 mm to order) and supplied as
a fanfold pack 15.25m (50') x 1.22m (4'). Folded at 0.61m (2') centres
for easy handling."

If I cut it into 4 foot lengths, I could fit it between the joists.
Result would be a neater appearance, no falling insulation ever, and a
smooth surface. This would be a cheaper approach than using those
large pink foamboards. Anybody seen this done ???
I have seen insulation made at one time that had a webbing around it
that held the insulation together and prevented sagging over time. I
have not seen it at the hardware stores in a long time.

Comments, thoughts ???