polebarn ceiling insulation

[BungeeII]

my building gets alot of wind, is there any chance that wind thru the soffit could blow the fiberglass toward the opposite side of the attic ?

Do a search on "ventilation chute". With properly installed chutes (a.k.a. baffles), you'll keep the attic properly ventilated without disturbing the insulation.

Icynene is a good product but not for the budget conscious.

 

[PA hayseed]

Do a search on "ventilation chute". With properly installed chutes (a.k.a. baffles), you'll keep the attic properly ventilated without disturbing the insulation.

Icynene is a good product but not for the budget conscious.

Agree, spray foam is kinda expensive, but it is a great product.

You can buy foam or plastic baffles, staple or nail em up, and take a roll of fiberglass insulation to tuck between the baffle and the eave to keep the blown in insulation from being moved. They also make a piece that you can buy, that you can put between the baffle ant the eave to seal it. I just used fiberglass as it was handy. The foam baffles break easily, but flex and cost almost nothing. The plastic ones aren't too pricey. whatever you do, make sure the baffles run further than your insulation or you'll have issues.

Have fun.

 

[jaysonb]

i already have the strofoam baffles and the fiberglass between the baffle and the eave. does everyone agree that blown fiberglass is better than cellulose?

 

[Redneck in training]

Cellulose is edible to mice, Fiberglas isn't.
Make sure you have a vapor barrier under the insulation. The insulation is cheap so you can blow in about 2 or 3 feet of it for R about 30 to 40. I blew in enough to cover the air-condition ducts located on the trusses. I bought the insulation in Lowe's. They delivered it including the blowing machine for free. We (I and my wife) did the garage (about 2000 sqft) in one night and the house (about 2400 sqft) second night. While doing this we almost burned our house down due to a stupid idea of using halogen lamp in the attic. When it fell in the fiberglass the insulation immediately ignited. Fortunately when I pulled the lamp up the fire died instantly. It was freaking scary though. Therefore use fluorescent or any other cold light. The baffles should be at least 6 or better 10 inches taller than the insulation. I noticed some movement of the insulation during very windy weather but only when it was freshly blown in and still fluffed. Few weeks later the insulation settled to some degree and became somewhat firmer so it couldn't be blow by wind anymore.

 

[Redneck in training]

Cellulose is edible to mice, Fiberglas isn't.
Make sure you have a vapor barrier under the insulation. The insulation is cheap so you can blow in about 2 or 3 feet of it for R about 30 to 40. I blew in enough to cover the air-condition ducts located on the trusses. I bought the insulation in Lowe's. They delivered it including the blowing machine for free. We (I and my wife) did garage (about 2000 sqft) in one night and house (about 2400 sqft) second night. While doing this we almost burned our house down due to a stupid idea of using halogen lamp in the attic. When it fell in the fiberglass the insulation immediately ignited. Fortunately when I pulled the lamp up the fire died instantly. It was freaking scary though. Therefore use fluorescent or any other cold light. The baffles should be at least 6 or better 10 inches taller. I noticed some movement of the insulation when during very windy weather but only when it was freshly blown in fluffed. Few weeks later the insulation settled to some degree and became somewhat firmer so it can't be blow by wind anymore.