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dstig1 · Dec 27, 2018

It that wet laid cellulose? I haven't seen anyone around here that does it. Only seen it in magazines like Fine Homebuilding and Journal of Light Construction.

JHurt · Dec 27, 2018

dstig1 said:
It that wet laid cellulose? I haven't seen anyone around here that does it. Only seen it in magazines like Fine Homebuilding and Journal of Light Construction.

My understanding is that the tan stuff is closed cell insulation, and the gray is cellulose. I’m not for sure the exact term. They are using some sort of moisture to get them to stick though. After researching a bit, I think I’ll be somewhere around a 25 R factor.

dstig1 · Dec 27, 2018

Yeah the tan/yellow stuff is clearly closed cell foam. And it sounds like it is wet-laid cellulose on top of that from what you describe. I used a similar construction in my great room ceiling, but it was regular dense-pack cellulose that was blown in dry.

You can see the foam all completed and the netting has been stapled up on the near side for the cellulose.

great room ceiling insulation (5) (Large).JPG

And here it is all filled with cellulose

great room ceiling insulation (9) (Large).JPG

ovrszd · Dec 28, 2018

This method appears to be a bit more expensive. The biggest gain is controlling air exchange. By adding the cellulose he has a great R value.

JHurt · Dec 28, 2018

Walls and ceiling done! R38 blown in the ceiling. Builder has an old electric furnace and a dehumidifier running right now. Warm enough to stand and drink a beer in. Def lots of moisture in the air from the cellulose though. Water running off the garage door windows. Starts on the interior sheeting next week he said!

ovrszd · Dec 28, 2018

By then things should be dried down enough. Just ride herd on the heat and dehumidifier. I think you need to be under 50%. But I'm no expert.

Glad it's moving along.

JHurt · Dec 29, 2018

Just a little bit of moisture seeping out of the walls! It was 17 out this morning and the electric furnace that the builder put in was off at 65 when I checked it. I don’t think it’s going to take much to heat it at all!

JHurt · Jan 1, 2019

Not much done on Monday, just a few sheets of plywood put up. Still holding at 65° and the furnace hasn’t been running the last two times I’ve been in there. Pretty good since it’s around 20° today.