Keep poly on the warm side like the floor not the bottom of the insulation
as you will get condensation. If you staple the plastic between the joists
calk the seems and then put insulation in place between the joists
(fibreglass). Then use something like a stucco wire to keep rodents out of
the insulation and as a finish to keep insulation in place. I assume you
have a crawl space. That works for me in Canada. Styrofoam is a good
alternative as mentioned and is better if you have a less than perfect dry
space, but more expensive. Home Depot sells a not ichy insulation as well if
you don t like to deal with fibre glass.


"Martik" wrote in message
news:TtQzg.136633$A8.120359@clgrps12...

"mo" wrote in message
news:4aQzg.3104$8v.830@trnddc05...
Hello all,
I have a closed in front porch and it has a crawl
space underneath. I want to insulate it for the winter.
It has exposed floor joists and I can see the subfloor.
My question is what type of insulation is best for this?
Also what is the correct way to install it?
I live in NJ where there is plenty of heat and humidity.
And could be very cold in winter. Thanks
If there is no chance of it getting wet just use fiberglass batts and poly
for a vapour barrier, otherwise look for a rigid type insulation.