Pink fiber glass installation????

Question

Ok, this has been a huge aruement with my family....

When installing the pink fiber glass installation UNDER your house...

Do you put the paper side toward the wood or the pink stuff toward the wood....

So what's showing when you look under your house when your finished, the pink fiberglass or the paper????

Thank you soooo much!!!!

Answer 1

Paper backing here is, I agree with the other posts, a waste of money. The paper backing is a mediocre vapor barrier at best in like wall insulation. The underneath of the house when insulated with the batts of unfaced insulation should be supported with a mesh style plastic that comes in three foot wide rolls. Lacking the mesh the paper will do more good with it down to be able to support the fiberglas and give the installer something to fasten with.

Answer 2

Neither. Using fiberglass insulation with paper under the house is a waste of money. The paper will deteriorate and the insulation will be all over the ground unless you enclose it with plywood which gets real expensive. Either use batts with reinforced aluminum foil backing or better yet have a spray foam insulation installed. The spray foam will expand and seal all cracks and never come out. May cost a bit more but well worth it.

Answer 3

the pink side goes against the wood showing is the paper the paper has an extended edge on both sides which is used to staple it to the floor joints.

Answer 4

The paper goes toward the living space technically, so the pink would be showing; but in your case, for ease of installation, I would turn it around.  Either way, I would staple another barrier cloth over the insulation to keep the critters out.  

Answer 5

The paper will go towards the floor and then you will need to cover the pink(exposed)with plywood or something. It can't be insullated unless it's sandwiched between two things.The paper always goes towds the warm side of the house for a vapor barrier.

Answer 6

pink to the wood, paper out