Author Topic: Using roll roofing (sanafil)  (Read 9482 times)


  • Guest
Using roll roofing (sanafil)
« on: January 03, 2007, 05:57:49 PM »
We have built a music room in the third car section of our garage using all the right techniques: Double walls on three of the walls, 2x6 framing, RC on the walls and ceiling, cotton insulation, celotex soundboard, VBL, and drywall. The problem is we have pretty much gone way over budget and still have one wall that doesn't have VBL sandwiched between the soundboard and drywall, and nothing on the floor. Someone suggested to me that there is a rolled roofing product (he called it Sanafil) that is similar to VBL and would be less expensive. Is anybody familiar with this? The areas we would use it are less critical (we are using drum and amp risers made of platfoam to isolate the floor) plus we just can't afford to buy anymore VBL.


  • Guest
Re: Using roll roofing (sanafil)
« Reply #1 on: January 04, 2007, 02:58:34 PM »
Double walls are cheap and work well if sealed against the atmosphere.  The rolled roofing may "Outgas" if it's a asphalt based product...

BJ Nash


  • Guest
Re: Using roll roofing (sanafil)
« Reply #2 on: January 04, 2007, 10:28:37 PM »
Yeah, if you've already got double walls and they aren't doing the trick, check you sealing, then add more mass - 2 or even 3 layers of drywall.  A double wall with 3 layers of 5/8" drywall on each side and insulation in all the cavities has an STC rating of over 70, provided it's constructed correctly.


  • Guest
Re: Using roll roofing (sanafil)
« Reply #3 on: January 05, 2007, 02:17:31 AM »
 :D   Yes, John is right.  Adding mass can d :Do the trick.  One way to do this on a budget is to use cement board from the HOME DEPOT.  Fitted between the studs against the opposite wall, or better, over the studs on sound isolation tape, well sealed with acoustical caulk.  (Not silicon bathtub sealer).  Acoustical caulk has componants in it that will maintain the STC.   They don't even be neede dto be covered with drywall, even though it helps add more mass.  These products and more are available on the Super SOundproofing website.

BTW: What exactly is "Sanifil"?