FINALLY!! The saga begins

Posted: Fri Jun 13, 2008 7:18 am

Rod,

My box with Photoshop kinda' blew up when I was testing some new experimental software. I'm still in the process of rebuilding it...

Until then, hopefully this evening, all I can give you are the dimensions and an oversized image... (I'll get the images edited down to a respectable size ASAP)

The distance from the top of the rafters to the bottom of the duct, at the shortest distance, is 8 inches.

I actually posed the movement within the rafter just backwards... e.g. the "slide" direction would actually be downward toward the Control Room. No wonder it sounded confusing, huh?

The distance from the inside band edge @ top plate to the main beam edge is 54.5 inches. The center of the vent is @ 27". The opening is 12.75"

The approximate distance from the top of the rafter to the bottom of the duct would be approximately 14"; by leaving the "lower" blocking and moving the "upper" blocking. That position would be approximately 14"-15"" from the wall. Would that not be a better situation than moving the vent closer to another vent?

Thanks!
Max

Posted: Sun Jun 15, 2008 9:22 pm

Max,

you should have plenty of room to leave it exactly where it is supposed to go.

Come up (from the louver) and install a 90 degree bend directly under the main trunk line - they use a little flex to make it out from under - and tie to insulated duct that ties into the side of the main trunk.

Make certain they install a balancing damper on that last piece of duct (which they are supposed to have anyway).

Looking at the pic - I don't see a big issue.

Rod

Posted: Sun Jun 15, 2008 10:09 pm

hmmmm... OK... I'll talk to the installer in the morning.

He was saying that getting the 10" flex to hit the boxing was all but impossible... But I'll let him know that it's fine to use a 90. I know they were concerned about not being able to use 90's because of potential noise.

Oh... yeah... they are using the balancing dampers... there's boxes of dampers and flex everywhere.

Thanx!
Max

Posted: Mon Jun 16, 2008 6:03 pm

Hmmmm....

Rod, (et al?)

I've been thinking and thinking about finishes in the hallway/Iso. I've been wanting the hallway to be a very live room that would be good for horns, strings, etc...

I walked into the local Blue Box Borg and found this;M-Rock.

I was contemplating something like studs, MDF, vapor barrier and then M-Rock's "Drystack".

Wouldn't that give the room the diffuse/reflective acoustic trait I'm looking for and still have enough mass to provide adequate TL?

They are claiming a density of 85lb PSF.

Any thoughts?

Posted: Tue Jun 17, 2008 2:27 am

Max,

In a room that small I would be concerned with trying to create too much of a lively atmosphere.

I doubt very much that the rock itself will help you with isolation much - way too many cracks for sound to leak through - but the room certainly would be lively.

As far as iso goes - just add a couple of more layers of drywall...........

Multiple replections within this small space concern me - it isn't the way I would go.

Let me think on it for a while.

Rod

Posted: Tue Jun 17, 2008 5:27 am

Rod,

I was concerned about the cracks as well... both as a source of weakness in the isolation and as not enough of an air gap to act as adequate diffusers.

I know we're pretty tight with room width to comply with ADA, so that's why I was attempting to get the room kinda' bouncy (for a third flavor) by reducing the gypsum and replacing with the M-Rock.

Or in your opinion should I consider making the hallway environment something between the Tracking Room and the Iso Booth?

Or should I just build the hallway and decide later if it does or doesn't need treatment of some sort?

Posted: Tue Jun 17, 2008 6:45 am

Max,

For me it would be the latter - I ould take care of it after I opened shop.

Rod

Posted: Tue Jun 17, 2008 7:02 pm

Rod,

Sure... no problem!

I was just thinkin' that if it was indeed something to persue... better to do it now while it might cost less.

I'll wait and see what I get, and then decide.

Thanx!
Max

Posted: Thu Jun 19, 2008 4:10 am

Well… the HVAC guys are really making some progress!

The duct is all but in… all the returns but one are attached and there are two feeds to the server room to be connected to the trunk.

The copper lines to the condenser’s are now in, and through the exterior wall.

Andy stopped by to pick up the surface mount board for the lighting. He’s going to lay out the wiring for the lighting, and hopefully the mock up will be back here tomorrow for inspection/approval.

Posted: Thu Jun 19, 2008 7:05 am

Max,

they made out OK with that one tricky supply?

Rod

Posted: Thu Jun 19, 2008 6:05 pm

Rod,

Yes sir they did... They put a 90 on top of the vent and viola! DONE!

So, "crisis" averted. Again, the thing they were trying to avoid was a 90 on top of any of the vents in trying to keep consistent with the original plans.

Max

Posted: Mon Jun 23, 2008 5:32 am

The HVAC is all but ready for rough-in inspection.

The guys actually worked on Friday to finish all but a couple of minor things. I think all they have are a couple of joints to tape and one bit of flex to connect to the fan in the bathroom.

There might be more, but I won't know until they get here later this morning.

Andy stopped by Saturday to pick up the filter packs for the dimmers. He's going to get all that mounted and bring it by Monday or Tuesday so we can get it mounted on the wall in the server room.

I had planned on getting some work done in the studio yesterday, but starting about 2pm, we had rain and thunderstorms that trained through the area pretty much until after midnight.

So much for getting anything done... I'm grateful for the rain, so it's a fair trade off.

Posted: Tue Jun 24, 2008 6:14 pm

WOOO HOOO!

We're going for electrical rough-in inspection in the morning!

There might be a couple of issues, but not anything I'm too worried about...

The big one is the fact that we still haven't pulled the 2.5" conduits up into the equipment bays at the rear of the control room.

The small one is that I don't have all of the top blocking completed over the 2.5" conduits that come up in the walls of the tracking room and iso booth. I will try to get those finished first thing in the morning before inspection. Technically, they are secured enough for the rough-in, but if he gig's me, I'll be fixing them as he's doing the inspection.

Andy also called for a "service locate" to be done so we can have our butts covered when we start to trench the HVAC copper lines and the power for the isolation transformer and HVAC condensers. They just upped the time for service locates from 24 hours from call in time, to within 48 hours of midnight the day the call is placed.

At any rate, Andy expects to have the locate service done by Friday and we'll probably start trenching either Saturday or Monday.

I also had to finish putting in blocking for 4 HVAC outlets; in the hall, two in the lounge and one in the bathroom. Those are done, and the HVAC contractor's coming in the morning to slather on some "duct seal paste", since the county requires it. Once that's done... we are ready for HVAC rough-in inspection!!

Posted: Wed Jun 25, 2008 12:50 pm

WOOOO HOOOO!

We passed the electrical rough-in inspection!!!!

There were only two comments... he wants Andy to be sure and put bushings on the chase nipples in the dimmer panel and that we will probably need a circuit for an emergency exit sign over the loading dock door.

Everything else passed with flying colors!

The HVAC guys were supposed to be here this morning to put the last of the duct sealant on the supply blocking I put in last night... no one has shown up yet.

I'm still in fire caulk hell... maybe I'll get through all of it someday....

As soon as I can get Photoshop reloaded on this box, I'll get some pix up of the electrical and HVAC.

Posted: Wed Jun 25, 2008 12:54 pm

Max,

Point out to him that the loading dock door is not a means of egress - the room only requires one means due to the limited occupancy load.

Don't forget - that's an invisable door assembly - there is not supposed to even be a handle on the inside - it's just deadbolts on the outside face between the doors for those panels.
Rod

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