We just replaced a damaged lath and plaster wall with sheetrock. The inspector now informs us that we need to blow in insulation, before he will sign off. The problem we are having now is, the screws are pulling through the drywall as we fill the cavity. It gets about 2/3 full then "POP", and the screw heads disappear. We used dimplers to set the screws, so I don't think they're too deep. We've tried adjusting the flow on the machine, but it doesn't seem to make any difference. What else might we be doing wrong?
sounds like air pressure causing the screw to pop... do you have vapour barrier (plastic sheet) under the sheet rock, if you do, this probably cause air unable to escape while you blowing, although I never done this... but in terms of physics, you kind of need to have a window open up to let air escape to avoid the pressure....
may be easier just uninstall the drywall and put in regular insulation and then reinstall the drywall....
Without seeing it in person, it would only be a guess, but the above advice is on the money, take the drywall down, and have the walls wet blown and scrubbed....with cellulose, this is the most effective insulation you will achieve.
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