hi. first-timer here in the acoustics subforums.
have backread almost all the posts in this thread, and followed up on leads. planning to build a small studio, you see, and so i went on the search for rockwool / mineral fiber. here's my results:
1. went to wilcon ali mall and had them ask the main branch if they carried rockwool (i also used the terms mineral wool, mineral fiber, fiber glass rolls/batting). they didn't carry any of those; apparently what they have is insulite (foam in between two aluminum-foil surfaces, sold in rolls). 15mm is the thickest they had, and i can lift a 1 x 25m roll of that with my hand and foot, so that's a no-go.
2. called up mc home depot in ortigas and asked for the same thing. same thing happens; although the guy also offered acoustic boards when i told him what i was going to use the insulation for. an 8-piece pack of 2x4ft acoustic boards is around 1200.
3. ace hardware and other hardware stores also just carry this aluminum-foam sandwich insulation. none of the fiber glass / rockwool stuff.
so can anybody help me out here? why is rockwool so hard to find? where do i find rockwool or fiberglass, and how much do they currently cost?
also, are there any significant differences between same-density rockwool sold in blocks and rolled-up rockwool (assuming this thing exists)?
also, extra tips? here's going to be my setup (my primary goal at this point is sound proofing, not acoustic treatment):
floor area: 16x13ft
ceiling: will be lowered to 8ft from 9ft, same treatment as walls
walls: 1ft chb wall, 4" air gap+metal studs, rockwool or fiberglass (whatever i can get my hands on), gypsum boards
door: was thinking of double solid wooden doors, rubber-sealed on all edges. but i'd settle for a single door if it works.
floor: no idea, help? for sure it's going to be carpeted