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[DaveWertz]

Thanks for all the info guys. After all this Im reconsidering the cellulose thing. Now here is a question. Spray foam! Can this be installed kinda like cellulose can? Meaning can they drill holes from the outside and just fill the cavities up? I don't have time to go threw and pull all my outside wall panels off to spray foam..

[robertj1]

Yes they take a row of siding off saw holes and inject foam in the wall cavity plug the holes and put the siding back on. They can also do injection from inside the house if you don't want the siding messed with. Do a search on injection foam.

[Cabo]

They will probably want to take siding off in 3 spots(bottom, middle and top) as to be able to completely fill the cavity.  Talk with a couple of companies to get a feel for how they operate and ask if they use a thermal imagining camera.  This is important to make sure all voids are filled.  The only areas that will be left to do are around windows and doors and you could get those later by removing the trim and filling with a can product.

[DaveWertz]

Ive been looking around to see if anyone offers injection foam. The biggest company we have around here are Lowes and Home depot. I dont think the smaller companies offer such things like ybc. The only things ybc offers is spray fiberglass.

[DaveWertz]

Well after a few estimates spray foam is out of the question due to cost and nobody really offers it. One company gave me a quote for dense packed fiberglass. I think i may be going this route. Tjey say it offers the same air stopage, does not settle, and will not create mold ect. If it gets wet. What do you all think about going that route?

[Cabo]

Dense pack is very good.  I feel $ for $ you get the most for the least.  90% of the homes/renovations we do is with dense pack due to it being more budget friendly.  Are you having it injected thru your drywall/siding or are you down to stud cavities?  If studs are open and they use netting make sure they stretch the netting TIGHT and staple just on the inside of the stud and not the face.  What happens with staples on the face is that as the cavity gets filled the netting stretches and you get some on the face, when you apply the drywall you don't pull the board tight to the stud.  Another very important question to ask is if they are going to roll it.  After the cavities are filled they should go over all the bays and this forces the air out so the material is flush with the stud face.  If they don't you will fight your a__ off dealing with the drywall and popped screws.  Trust me on this one from my first experience.

[DaveWertz]

There going to be doing from outside bu drilling holes threw the siding. I have wall panel so outside was best for me as paneling would be harder to fix. Plus it keeps the mess outside and not in lol. I def think im going to pull the trigger this time on insulation. This house is old and drafty. As of now im going threw and doing air sealing in the basement. I bought a Froth-Pak 200 for the frame sill, lemme tell ya its not as fun as i intended!