My furnace room is quite loud. It measures 60-70 dB of constant noise through most of its space and despite being over 30 feet down a hallway from my 20x30 recording space, it gives me an audible 50 dB or so of background noise where I need silence.

I am planning to buy 24" of 1" 2'x4' mineral fibre and panel any surface or space I can (besides the top of the furnace/humidifier, both of which I must leave to circulate air). However, since this is a room which remains open always to the house and holds the family's shoe racks, I cannot leave the fibre panels open to the air and my very sensitive family members.

For my studio rigid fibreglass panels, I am using a 1/4" polyester batting adhered to the surface by 3M 77 adhesive spray. Around this, I am fastening a sheet of muslin. This is working great so far. The furnace room, however, contains the water heater, etc., and I presume requires more careful and less flammable treatment than a simple polyester batting and 100% cotton.

If so, are there any safe and legal ways to cover/treat mineral fibre boards used to quiet down such a space as this so that fibres are not loose to float around?

My location is Toronto, ON, CA, so any information on what is allowed on the walls and against the vents of a typical North American furnace room of this sort would be appreciated.

Here are some pics:













Thanks,
Mike

Mineral fibre board is,a "naturally" fire safe product.The other thing is,the minerals them self are much less harmfull than fire retardents in general,a fire safe paint could be another option,but quite unhealthy..
You should be able to by a finished product, like the T-bar ceiling panels.
One other thing to remember is,unlike donnaconna/k3,or fiberglass.The material in the mineral board is quite heavy(Basalt),and therefore,will not float around nearly as much as the other lighter materials.
The T-bar panels are 2'x 4',therefore should be quite easy to install in that tight a space.

Thanks for the info. It sounds like the board will be fine all by itself then from your comments.

If not, a friend in firefighting school recommended I call my local fire department to ask for the regulations for furnace rooms, but she didn't think there were any. Just for archive purposes, I'll post back once I find out.