Dense Pack Insulation in a Floor

I’m having trouble finding a subcontractor to blow some dense pack insulation into a floor assembly. In fact I get no response to emails or phone calls from the places I’ve tried – but that’s another issue I suppose.
Anyway, it looks like I’m doing it myself via either a Home Depot or Lowes rental.
Assuming framing as in the attached image, I’ll then subfloor it with Avantech. When I’m ready to blow, my guess is that I should use a hole saw to cut holes in each half bay and blow through them.
Good?
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I would install batts around the perimeter because you will likely have some settling. Install Insulweb, a tough, gossamer-like fabric, over the surface to contain the cellulose and let air evacuate as you're blowing. It should pillow up and feel like a very firm mattress, not a fluffy pillow. Then install the floor sheathing. You can use a chunk of framing lumber and a sledgehammer to push the cellulose down just before installing the subfloor.
You might find it easier to just install batts everywhere.
That's a good idea - the fabric.
I assumed batts would leave gaps where they met the i-Joists - hence the dense pack.
It might be a special order but you can get batts made for steel framing or I-joist framing that are full dimension and won't leave gaps.
Thanks Michael.
I've found some 24" wide batts.
Tiziano,
With continuous sheathing above and below, are you sure you need blocking on the I-joists?
Probably not. :)
My house is on piers and the floor deck, framed with 2x12's is filled with dense pack cellulose. I used insulweb netting then covered it with zip r sheathing to eliminate thermal bridging. As far as I know all the blowers they rent at big box stores are for loose fill and cannot give you the pressure needed to dense pack. Which will result in a lot of settling.
How did you get it blown in Josh?
I worked with a cellulose contractor who had no problems doing the floor. I did all the netting and loaded the blower while he did the blowing.
You can rent the regular fluffy blower and fill the joist bays. Once filled stamp it down and top up. Won't be fully dense packed but it won't settle much.
I would do it the same time you are doing your attic fill.
Thanks.
My friend Jon, who insulates many of the projects I design, wrote this article which includes a bit about DIY at the end: https://www.finehomebuilding.com/project-guides/insulation/dense-pack-cellulose-insulation-done-right
Thanks Michael.
I'd read that, and another FB article (I think) which spoke more about DIY.
Now that I've learned of 24" wide batts, I'm leaning that way. It looks like I can get R-30 to R-38 with a slightly compressed 12 1/2" thick batt (compressed down in the 11 7/8" deep bays).
Sounds good. Compressing batts a bit usually increases their R-value per inch, so that's a good thing.