This one will definitely work, and will minimize the amount of dust.
I would recommend using the Propac version versus the Insulweb.
Hi, When you say roof rafters I am assuming the trusses? If so - yes you can, however I would choose a slightly more breathable product called 10.2 ft. x 375 ft. Pro Pac Insulation Fabric part number ICPP122.
The insulweb is the strongest product. The spans are going to be so large, I see sagging being an issue - I would look into steel banding every two feet to help hold the product from sagging. Otherwise look into metal building insulation - the WMPVR surface will protect the insulation underneath and it will be less likely to bulk out from no support in an 8' span.
This is the strongest fabric available in the market. Make sure to put staples at 2" intervals or less for best support.
Air does pass through this product - it is typically used for blown in insulation so air needs to escape as the wall channel fills. However it is a one time use product. Once the cavity is full the drywall is put in place. I am not sure how it will filter long term since we do not sell it for filtering.
No I am sorry we do not.
Hi, This item is not a vapor barrier.
Yes this product will work or 1/4" Medium netting.