Insulation, Radiant and Vapor Barriers - Blown Cellulose into interior wall
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dogger
10-14-04, 08:44 AM
I am about ready to blow cellulose into the interior walls of my old house. It was built in 1900, is stucco which is why I need to go through the interior, has no insulation except for the attic, and is balloon framed.
I have a couple of questions that I haven't been able to get answers to.
I have seen, on the internet, the technique of inserting the blower hose into the stud cavity and pulling it out as the space fills up. The advantage is that you get a better density fill without gaps and air spaces.
My question if anyone can answer is obviously you need to reduce the blower hose down to something that will fit in the cavity. I believe the hoses on the rentals are around 3". What size can you reduce to and still get a good flow?
How long could this reduced hose be? With my balloon framed house, I have not detected any fire stops and am curious if I could get away with starting from a hole at the top of the second floor wall and fill all the way down to the first floor?
I'm not really excited about cutting holes on both levels of the house, but I want this to be done correctly, at least to the best of my abilities that is.
I have a couple of questions that I haven't been able to get answers to.
I have seen, on the internet, the technique of inserting the blower hose into the stud cavity and pulling it out as the space fills up. The advantage is that you get a better density fill without gaps and air spaces.
My question if anyone can answer is obviously you need to reduce the blower hose down to something that will fit in the cavity. I believe the hoses on the rentals are around 3". What size can you reduce to and still get a good flow?
How long could this reduced hose be? With my balloon framed house, I have not detected any fire stops and am curious if I could get away with starting from a hole at the top of the second floor wall and fill all the way down to the first floor?
I'm not really excited about cutting holes on both levels of the house, but I want this to be done correctly, at least to the best of my abilities that is.
resercon
10-17-04, 10:28 AM
http://www.weatherization.com/densepack.html
This site gives you an idea on how "Dense Packing" is achieved and the type of equipment used. I do not know of any rental stores that rent this type of equipment.
This site gives you an idea on how "Dense Packing" is achieved and the type of equipment used. I do not know of any rental stores that rent this type of equipment.
Ed Imeduc
10-17-04, 10:43 AM
With the blower we had it would blow a 8 ft stud full ok . With just one holenever tried 16 ft. Do know you had to keep an eye on it when blowing. Have had it blow paneling off the wall .
You say ballooon framed. dont forget to close the wall up down in the basement as it should be open down to the sill plate.
ED ;)
You say ballooon framed. dont forget to close the wall up down in the basement as it should be open down to the sill plate.
ED ;)
dogger
10-18-04, 09:17 AM
Thanks for the info
Update
Rented a blower on Sunday and didn't get to the second floor area to try to do 2 floors at once. Will be trying later in the week as too much rain in the forecast.
I did not go to the big box store to rent my blower. I went to a small tool rental place where I was given excellent instructions and advice. They also rent a Pro grade blower unlike the ones I have seen at HD. They even stopped me from renting the machine on Saturday because the humidity was high.
My biggest advice to anyone renting a blower is to avoid hitting the remote button when you don't have the nozzle stuck into the wall.
Update
Rented a blower on Sunday and didn't get to the second floor area to try to do 2 floors at once. Will be trying later in the week as too much rain in the forecast.
I did not go to the big box store to rent my blower. I went to a small tool rental place where I was given excellent instructions and advice. They also rent a Pro grade blower unlike the ones I have seen at HD. They even stopped me from renting the machine on Saturday because the humidity was high.
My biggest advice to anyone renting a blower is to avoid hitting the remote button when you don't have the nozzle stuck into the wall.