2 Newbee questions on insulation
tom411
| Posted in Energy, Heating & Insulation on
I have two questions and I appreciate your support in advance. I am finishing the framing of a stand alone woodshop and need to start thinking of insulation. I live in Southern California and the temps are fairly moderate. My question is, can I use R19 for 2×6’s for standard stud walls or am I over killing? Also if I use the thicker material will 5/8 drywall be abled to be installed normally?
My second question is that in my shop I am having a seperate closet to house my dust collector and air compressor (3’x6′ x8′) I was thinking of using 2x6s for the room and use the matching insuation material for sound proffing. Again, should I use simple 2x4s with R19 designed to be used with 2x6s?
Thank you for your input!
Tom
Replies
Tom, your question is a bit confusing. Are you asking whether you can stuff 2x6 insulation into 2x4 walls? If that's the question, then the answer is no.
Fiberglass insulation is meant to form a tight seam in the stud bays, but loses it's effectiveness when compressed. Same goes for the sound control issue - fiberglass only effectively absorbs airborne sound, and if it's packed too densely - it won't be effective.
On a side note, you really should consider isolating the dust control system from both airborne and structure-borne sound transmission. In the most simplified example, a room with fiberglass walls would sound very quiet from within (because the FG absorbs sound waves as they bounce around), but not very quiet from the other side of the wall. A brick room would be noisy as heck from within (sound waves bouncing around), but not as noisy from outside the room. The denser the wall, the less structure borne sound will go through.
but I ramble, sound control is a pretty in-depth thing to get into...
Justin Fink - FHB Editorial
Your Friendly Neighborhood Moderator
Thank you Justin.
As I researched sound proffing, it was getting kind of nuts in regards to tech issues. I will use just the standard insulation material to avoid "stuffing."
18613.13 is an interesting old post of Breaktime that is worth the read along with the whole thread to create fodder for the imagination.
Cheers
"When we build, let us think that we build forever. Let it not be for present delight nor for present use alone." --John Ruskin
Andrew Clifford of Clifford Renovations, who serves as a steward of our history for future generations
We can imagine something that only exists in our heads, in a form that has no measureable, tangible reality, and make it actually occur in the real world. Where there was nothing, now there is something.
Forrest - makin' magic every day
Edited 10/3/2006 3:41 pm ET by rez