Utility room with the gas furnace & blower is right beside the family room.
Intervening wall is built with 2x4s with thin wood paneling on the family
Someone had put peg-board on the utility room side, but we ripped it out to
give the electrician access for some rewiring work. There is no insulation
in the wall.
To decrease the noise of the furnace I'd like to put something in the wall
Will R-13 fiberglass make any significant difference?
Any better suggestions?
This is Turtle
R-13 Insulation is fair to stop sound and so it Ceiling Celitex square what
everybody has on their ceiling to start with and stops sound very good. As
others have said, Sheet rock, insulation , Ceiltex , and Styro foam squares are
all good heat stoppers and sound stoppers too.
What you need is weight. One solution is to use
carpet underlayment (padding), a couple of 1/2"
layers would work, and then top that with 1/2"
sheetrock. Or you could put a layer of 3/4"
plywood or fiberboard in the spaces between the
stud, and again top that with 1/2" sheetrock.
Of course they make lead sheet material for this
purpose but it is pretty expensive.
Like George said - Mas is key. Also physical separation helps a lot too.
Here are a few scenarios, cheaper/easier to more elaborate. I will not even
suggest anything an average handy person couldn't do.
Add one or two layers of 5/8 sheetrock to inside of wall.
Add sheetrock to both sides of wall, on outside you can just put your
paneling back over the sheetrock.
Build a new wall inside the old wall, not connected to the old wall. If you
have room, of course. Then insulate with solid foam, in both walls, and
drywall both walls, inside and out.
Option 3 will be most effective. In all these situations your access door is
probably the weakest link. if you access door is not louvered to supply
fresh air or serve as a return you can consider putting a solid wood or
metal door in its place. Also weather stripping, even the floor, will help
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