Originally Posted by drhack
The site looks cool - esp the animated short on the Hakata Bay.
What insulation did you use for the HT room floor - is it std insulation bales or something else? In my new place the basement is in the HT and am looking for ideas on how to insulate for the floor above.
Originally Posted by RMK!
I just used the thickest R factor fiberglass I could fit in the 12" space. I was more concerned about strength and weight handling so I added extra floor joists and placed them 16" OC where code required only 24" OC spacing. As those who have heard it can attest, the floor still moves pretty good when the subs get going
. If I had a do over, I would probably use rock wool and regular insulation and double sheet the subfloor. But even that wouldn't stop the bass.
RMK, I don't want to hijack your thread, but you responded about this, so I'm going to take the liberty of offering my thoughts as well.
RMK is right, the insulation will do little to stop the bass. Therefore, I wouldn't use it for that purpose. However, stuffing the overhead joists with pink fluffy fiberglass can serve another, highly beneficial purpose. Use it as an acoustic treatment/bass trap. That's what I did in my basement HT. I stuffed the intra-joist spaces with R-19 pink fluffy fiberglass batts. Then I added an acoustic dropped ceiling 3" below the joists. Between the acoustic absorption of the insulation:http://www.bobgolds.com/AbsorptionCoefficients.htm
and the acoustic absorption of the ceiling tiles:http://www.certainteed.com/products/.../smooth/314118
I ended up with about 12" of acoustic absorption... across the entire ceiling. IOW, my ceiling is one large bass trap and broadband absorber. In addition, I used the Black Nubby finish, which has an extremely low light reflectivity. This reduces the reflected light from the ceiling and increases the perceived contrast of the image on my 128" SeymourAV AT screen. Between the black ceiling covering the acoustic insulation, the burgundy velvet drapes covering the front and side wall acoustic treatments, and the dark brown, heavy carpet over thick pad on the floor, the front of my room is a "black hole" for both light and sound.
I really like the look of the black ceiling in my basement HT, and it serves 2 other useful purposes as well.
Now, back to shifting the earth's orbit...