need general help.

aespin · Post by **aespin** » Thu Jan 19, 2006 8:04 am

I just buy a box of 12 USG Acoustical Sealant, paid like 72 usd for the box.

i have 1 question i almost in time to order the mineral wool.

Find THERMAFIBER® SOUND ATTENUATION FIRE BLANKETS (SAFB), in 2, 3 and 4", what u guys think is better, BTW thermofiber SAFB model have a 2.5 density.

Prices:

2" @ 3.75 USD each
3" @ 5.62 USD each
4" @ 8.28 USD each

I was thinking on 3", but what u guys think? for inside the walls, and i will use some when i need to do the acoustics, broadband traps.

Thanks again

aespin · Post by **aespin** » Sun Jan 22, 2006 6:03 pm

hello the foundation of my room is almost finish.

1 more question.

floor studs over neoprene?

The studs are nailed or screw to the original concrete floor?, or studs only rest over the neoprene?

thanks guys.

aespin · Post by **aespin** » Wed Jan 25, 2006 3:10 pm

Well foundation is done.

Working on Cement 8" block walls.

hopes i can get some pics fast.

wheres my camera when i need?

aespin · Post by **aespin** » Wed Feb 08, 2006 1:23 am

hello, back again, lil bussy.

just some questions,

i buy my backer rod is 3/8 diameter, question is gap need to be 1/4" or 3/8" to use 3/8" backer rod, backer rod instructions said i need 3/8" to cover 1/4" gap.

question 2.

anyones know where i can find a caulk gun 29oz? online need the gun shipped to mexico, or any DIY 29 oz caulking gun?

Thanks again.

aespin · Post by **aespin** » Wed Feb 08, 2006 4:52 am

Silica Gel, How much to use ?, my window gonna be 1.20 M X .80 M

anyone know where i can find online, i contact some distributors here in mexico, but they said they only sell 25 KG minimun.

thanks

aespin · Post by **aespin** » Fri Feb 10, 2006 1:29 am

bump

knightfly · Post by **knightfly** » Sat Feb 11, 2006 6:55 am

Some possible sources

http://www.dehumidify.com/retail.html

Some info

http://www.dehumidify.com/FAQ.html

Sorry I've missed some of your questions (busy doesn't describe my days

)

Neoprene under floor joists - glue or free-standing, if you nail through the joist into the concrete then the neoprene is USELESS.

Backer rod - should be a snug fit, mostly so it doesn't try to come out of the crack before you caulk. Caulk needs to contact both surfaces of the crack, but NOT the BACK of the crack. The backer rod is there so you do not have a 3-point caulk, otherwise when building shifts around your caulk joints will CRACK and you lose isolation.

Caulk gun - this looks similar to mine, price is about what I paid caulk gun

Insulation - for inside the walls, regular fluffy fiberglass insulation will work as well as the SAFB's, so if you've not already done it you might be able to save some money. Either will be fine though. You want the insulation to STAY in contact with the gypsum, one way or another. The 3" batts will be fine, 4" are more than twice the cost of 2" so if you want that thickness it would be cheaper to just buy twice as many 2" ones.

Refrigerator door seals can work, but need steel to seal to as you said.

Caulk -

http://www.whitecapdirect.com/store/wor ... t-v2.0.jsp

Best deal you'll find...

Hope this helps, in future if you don't get responses in a few days please PM me... Steve

aespin · Post by **aespin** » Tue Feb 21, 2006 9:55 am

thanks for the advice steve.

so fuffy fiberglass for floor and celling too?

i find a place for fuffy fiberglass,
and i get the prices.

2" X 15 meters=16.5 usd
3" x 15 meters=23 usd
4" x 15 meters = 31.5 usd
5" X 15 meters = 43 usd
6" x 15 meters = 46 usd

i can full cover the gap:

floor 1/2" neoprene + 3.5" wood studs = 4" for floor
walls and celling = 2" gap+3.5 steel studs= 6" for floor

i read here when using fuffy fg is better to fill all gap?, remember my room is a room in a room construction.

if i use full cover gap fuffy fg, i gonna spend like 470 USD, and in 3" SAFB i waste 775 USD.

i like the 300 usd diff, can cover my 2 doors

.

thanks in advice.

knightfly · Post by **knightfly** » Tue Feb 21, 2006 4:19 pm

The thick, fluffy stuff is fine, it's not worth the difference to get the heavier stuff except for EXPOSED acoustic treatments. (no wallboard over them) - unless you have walls that are EXTERIOR, you want the insulation with NO BACKING - no paper, no foil, no plastic, just fluffy fiberglass.

If you have any OUTSIDE walls to do, ask and I'll run through the decision process with you... Steve

aespin · Post by **aespin** » Sat Mar 11, 2006 1:01 pm

this is the layout, as u c i have no back wall in control room.

i hope we can strat framing next week, all material is here, just waiting for workers finish the others house rooms.