I live on the top floor of a duplexI'm putting insulation in the floor, mainly for sound deadening.I want to buy thick insulation and lay it between the joists then compress it with the floorI've read that compressing insulation decreases it's R value, but will that decrease it's sound barrier too?
I'm not sure about aluminum, but you can buy Spectre products from AutoZone and O'Reillys I believeThey have an assortment of piping for pretty cheap that lets you build your own intake just how you want it.
why use aluminum?, you can use bendable rubber corrugated piping to do the job.
very confusing situationcheck out at yahoo or googlethat will might help!
Yes it can decrease it's effectiveness as far as soundproofing goesA little compaction (less then 10%) probably won't matter one way or the otherBut when you begin to compact the insulation it becomes more solid, and sounds travels best through solid surfacesFor a floor there are many types of soundproofing mats you can purchase to go under your floor which reduces both airborne noise and footfallThese seem to range from $1.50 to $5.00 a sq ftAlso look into shipping before buyingGenerally the more expensive the floor, the higher the shipping costsHope this helps, Alan
