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If your under the IMC code it normally requires an upblast UL 762 fan with hinge kit and grease receptor. Could possibly use a utility type with the exhaust directed away from the roof so...

18" from combustibles from top of fan to hood and not additional protection required per IMC. Any reduction now requires an approved method using either the method in NFPA 96 or fire wrap listed to...

The battle continues day in and day out but it beats unemployment! lol

Speaking from a Code Official standpoint, a confined space is what it is by definition. Nowhere in the definition is an allowance for drafty or infiltrated walls, windows, etc. If it meets the...

Always told my people if you don't leave some blood behind on the job you didn't work fast enough. lol

Slim, maybe canvas was the wrong name, there is a flexible material that is not absorbent and is rated for heat that Many of us in Mi have been approving for this application over the last couple...

There is a fire rated canvas used on inline style fans. Should not need to isolate a fan on a roof curb since UL262 fans, when new, are in almost perfect balance. Now if you bounce them across the...

Return Air, IRC 1602.2 Prohibited locations:
Item 4: A closet, bathroom, toilet room, KITCHEN, garage, mechanical room, furnace room or other dwelling unit.

That said, you need to distinguish...

No DIY guys!

[Edited by HeyBob on 09-20-2006 at 08:12 AM]

couldn't have stated it any better there OE.

CW no wonder you can't get your proposals done watching that stuff lol. Seriously friday I was filling in in royal joke and they were running woodward from 11 am and what a mess it was to get around...

cem-bsee and all, plenum rated cable, as we have known it to be for years, does not meet the flame and smoke spread ratings as stated. It actually produces a smoke rating of 850. The codes will be...

John, per 2003 IMC 403.3, warehouses= .05cfm/ft2

Jamars I highly doubt the problem is the Trane unit but the drainage system employed with your scenerio. Have a pro look at it for proper drain sizing, trap, and air gap etc.

Per NFPA 96 the maximum negative is .02

If your on the IRC the new 2006 has the wet switch as prescriptive language in this application when and if its adopted.

The best person to ask is the AHJ for the area and how they view the wording of the code in place there. You can get all kinds of answers here but the main answer has to come from the local...

Hmmmmmmmmmmm, I'd say you were out with D4 & Heybob and forgot to invite me for the beer fest and you ran into Jessie LMAO

Big tell us what you really think! And WTH are you talking about?

Thanks CW, check out the 2900 sq. ft. thread and tell me why you didn't think of it lol

CW and the others are right on with the load calc. Seems that you have a central return without any transfer openings into the area of the return grill. You may try first to cut some transfer...

I'd first check with the bldg dept and see if there is an affidavit that you sign as a H.O. stating you are doing the work yourself. If so and you have a contractor do the work its FRAUD on your...

#1 You don't give a location where this is at to start with.
#2 Most codes will not allow this application since they forbid returning air from more than 1 dwelling unit.
As others said its a BAD...

Make sure when the regulators are installed for the 2 psi system at each appliance the regulator itself is installed in the horizontal position not the vertical. I see it a lot when this type...

This might sound stupid to some if not many. Is the relief damper on the underside or just below the econ intake? #1 you need to realize if your under the IMC that you can't recirculate return as...