Review Comments

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Permit Number:	C17-2052
Permit Type:	Commercial Building Permit - None BldgAlter
Address:	1700 HILLCREST DR Anchorage
Location:
Work Description:	HVAC UPGRADE FOR THE GYM AND AUDITORIUM MECHANICAL ROOMS AT WEST HIGH SCHOOL - MJD
Status:	Closed
Project Name:	WEST HS GYM & AUDITORIUM HVAC
Review Type:	Mechanical
Result:	Correction
Result Date:	12/29/2017 10:06:02 AM

Comments:

	Code Section	Review Comment	Status

Advisory Information:

Reviewed by: Bergstrom, Leigh W.

Phone: 343-8326

Fax: 249-7615

Email: BergstromLW@muni.org

Permit Manager: Melissa Davidson

Phone: 343-8339

Email: DavidsonMJ@muni.org

Project: WEST HS GYM & AUDITORIUM HVAC

Review Number: 402504

1) STATUS: 11-06-2017 Comments to be addressed. 12-29-2017 COMMENTS TO BE ADDRESSED.

2) The following comments based upon the 2012 International Building, Mechanical and Fuel Gas Codes must be resolved before a permit is issued. The approval of plans and specifications does not permit the violation of any section of the IBC, IMC, IFGC or any federal, state or local regulations. RESOLVED 12-29-2017.

3) Provide structural and seismic calculations plus fastening details for AHU-1 thru 6B, AS-1 & 2, ET-3, GT-2 & 3 and HRV-1 to include the engineers stamp and signature for structural review on a deferred submittal basis. RESOLVED 12-29-2017.

4) M-130 It appears that the 21" X 12" SA duct penetration through the wall adjacent to column lines "Q" and "28.9" is passing through a 4 hour wall assembly and requires a fire damper per IMC 607.5.2. RESOLVED PER RE-SUBMITTAL RECEIVED 12-26-2017.

5) M-130 The 36" X 14" EA up through the floor to Level 1 is passing through a 1-hour floor ceiling assembly (Type II-FR construction) and requires a fire damper per IMC 607.6.1. 12-29-2017 UNRESOLVED. IMC 607.6.1 specifically calls for a fire damper. Please provide the code path that eliminates that requirement. Also, this plan calls for a 36" x 14" up to Level 1, but detail 1/M-131 calls for 14" x 14" down to the rifle range. Please clarify.

6) M-132 The 6" EA duct penetrating the 4-hour wall at Storage I121 requires a fire damper per IMC 607.5.2. 12-29-2017 UNRESOLVED. THERE ARE 15 OTHER DUCT PENETRATIONS THROUGH THAT SAME WALL, ALL OF WHICH HAVE FIRE DAMPERS. THIS PENETRATION IS IN THE MIDST OF ALL THE OTHERS AND WE DO NOT SEE THAT THAT SECTION OF 4-HOUR WALL HAS LOST THE REQUIREMENT TO BE RATED.

7) M-135, M138 & M-531 All of the duct floor penetrations are through a 1 hour assembly (Type II-FR construction) requiring fire dampers per IMC 607.6.1. RESOLVED PER RE-SUBMITTAL RECEIVED 12-26-2017.

8) When the above comments have been addressed, please update the plans at the MOA Plans Review Office with three sets of revised mechanical pages to include clouded changes, engineers stamp and signature. RE-SUBMITTALS ARE TO BE DIRECTED TO THE ATTENTION OF THE PERMIT MANAGER WITH A LETTER OF RESPONSE ADDRESSING EACH COMMENT. (23.10.104.8.1)