Pole Barn Ceiling Insulation

[LennyTheLizard]

Getting ready to blow in R-30 in my pole barn attic.

Question for you experts here:
How do you set-up to prevent the insulation from clogging the soffit vents in this style set-up.

It's a 4/12 pitch roof, 40 X 60 building, trusses on 8'7" centers, 18" overhangs with vented soffits and vented ridge.

 

[leiterch]

There are a couple ways. They sell a piece that fits and runs parallel with the truss to give you an air flow around the roof through the soffit. You can always use rigid foam board also or some other rigid material to ensure you have that air channel. Hope that helps.


Sent from my iPad using Tapatalk HD

 

[galute]

Working on my shop now doing the walls first. We are stapeling cardboard from the top girt to the bottom of the first purlin. This will give a foot or so to blow insulation in without clogging any vents. Also my side walls are 8 inches higher than the bottom chord on the trusses so the side walls will be almost to the top of the attic insulation.

 

[gungatim]

google rafter vent chutes, like these. staple them up before you insulate.

http://www.amazon.com/dp/B001B19G20/?tag=atomicindus08-20

 

[LennyTheLizard]

Working on my shop now doing the walls first. We are stapeling cardboard from the top girt to the bottom of the first purlin. This will give a foot or so to blow insulation in without clogging any vents. Also my side walls are 8 inches higher than the bottom chord on the trusses so the side walls will be almost to the top of the attic insulation.

If I understand correctly, your ceiling is "lowered" instead of flush with the top of your wall?

That would work well, but unfortunately mine isn't laid out like that.

I was hoping i could put something in that I can just leave so I don't have to crawl through insulation to take out. So I don't really want to use cardboard and the normal rafter vents are way too small to cover an 8'7" span.

 

[bullnerd]

Are all your ceiling panels up?

 

[surpdlr]

Morton buildings use Tyvec house wrap, BEFORE installing ceiling. They staple it up to make a chute. With the ceiling in, it may be a bit tough.

Jeff

 

[Autorotica]

You could also use www.atticfoil.com to hold back the insulation. Cut it to any length you need it. That stuff is incredibly tough.

Chris

 

[galute]

If I understand correctly, your ceiling is "lowered" instead of flush with the top of your wall? Yes, my shop has 12' side walls with no overhang. So, the exterior metal being 12' had to go to the top of the 8" bottom chord on the trusses in order to cover the ends of the trusses. This makes the ceiling 11' 8" on the inside. Since all our framing is 12' for the inside walls we just let it run higher than the ceiling instead of making all those cuts. Then we will just run the ceiling to meet the walls at 11' 8". Hope this makes sense.

That would work well, but unfortunately mine isn't laid out like that.

I was hoping i could put something in that I can just leave so I don't have to crawl through insulation to take out. So I don't really want to use cardboard and the normal rafter vents are way too small to cover an 8'7" span.

I think I miss understood what you were needing. I though you were looking for something to block the blown in insulation from blowing down behind the walls.

 

[LennyTheLizard]

Are all your ceiling panels up?

Yes,

The picture in first post was taken from inside the attic. To the right is Gable end wall. On the far end of the picture you can barely see the top of the long wall and past that you can see the soffit vents.

 

[bullnerd]

That's going to be a *****.

 

[hybred355]

Well the way I see it,you are going to have to get up there,lay some boards across the 2x4 to get out to the soffit area.Take a 1x12 inch board or piece of 12 inch plywood and fasten it between the truss ,go ahead and blow in the insulation, Hell of a job . Good luck

 

[Krodad]

^^ Yup, that was my thought too

Sent from my SCH-I535 using Tapatalk

 

[67Stang5.0]

Spray Foam!