February 18, 2011 Revised February 22, 2011 for

ALTERNATIVE MATERIAL REQUEST

6725 162nd Pl SW Lynnwood, WA 98037 www.AEGISengineering.com (425) 745-4700 phone (206) 801-5797 fax

Fire Protection ▪ Building Code Consult ▪ Design ▪ Engineer

SHERLOCK BUILDING – PORTLAND

MCKEON HORIZONTAL ASSEMBLY

ALTERNATIVE MATERIAL REQUEST

February 18, 2011 Revised February 22, 2011

for:

GENSLER 2 Harrison Street, Suite 400

San Francisco, California 94105

SHERLOCK BUILDING – PORTLAND Page 2 MCKEON HORIZONTAL ASSEMBLY February 18, 2011 Alternative Material Request Revised February 22, 2011 INTRODUCTION Aegis Engineering has been retained by Gensler to evaluate the proposed application of McKeon horizontal rolling fire and smoke shutters for the Church of Scientology at the Sherlock Building at 320 SW Oak Street in Portland, Oregon. We understand this project is being evaluated based on the 2010 Oregon Structural Specialty Code (OSSC), which is based on the 2009 International Building Code (IBC). This project condition was presented in Appeal Item 1 with Appeal ID 7635. Correspondence from City of Portland dated February 17, 2011 indicated this item was denied, stating, “The board would reconsider this appeal with an analysis of the proposed oversized fire/smoke shutters by an engineer licensed by the State of Oregon.” Such an analysis is presented below.

PROJECT CONDITIONS

The Sherlock Building is an existing 6-story building with one basement level and a mezzanine space serving Level 6. The building is of Type IV Heavy Timber (HT) construction originally built in 1893. Existing occupancies in the building are identified as Assembly and Business uses. The proposed use of the building will include Group B throughout all levels of the building with Group A-3 on Level 1. Existing floor openings situated near the center of the floor on Levels 3 through 6, each approximately 17 feet square, creates an atrium condition extending from Level 2 through 6. The proposed design seeks to provide horizontal separation at Levels 4 and 6 to limit an atrium condition to a maximum of two interconnected floors. The building is equipped with an automatic fire alarm system and existing sprinkler protection provided throughout the building will be replaced with quick response sprinkler heads, including closely-spaced sprinklers which are located around the perimeter of the above-referenced floor openings.

ALTERNATIVE APPROACH In order to achieve the level of protection described by the code between floors, the project team has identified a solution utilizing automatic-closing McKeon horizontal rolling fire and smoke shutters. CODE REFERENCES Section 404.5 of the OSSC pertains to atrium smoke control:

A smoke control system shall be installed in accordance with Section 909. Exception: Smoke control is not required for atriums that connect only two stories.

SHERLOCK BUILDING – PORTLAND Page 3 MCKEON HORIZONTAL ASSEMBLY February 18, 2011 Alternative Material Request Revised February 22, 2011 Section 404.6 of the OSSC prescribes atrium separation:

Atrium spaces shall be separated from adjacent spaces by a 1-hour fire barrier constructed in accordance with Section 707 or a horizontal assembly constructed in accordance with Section 712, or both.

Protection of openings in horizontal assemblies constructed in accordance with OSSC Section 712 is addressed in Section 712.8:

Floor fire door assemblies used to protect openings in fire-resistance-rated floors shall be tested in accordance with NFPA 288, and shall achieve a fire-resistance rating not less than the assembly being penetrated. Floor fire door assemblies shall be labeled by an approved agency. The label shall be permanently affixed and shall specify the manufacturer, the test standard and the fire-resistance rating.

With regard to opening protectives, Item 3 of OSSC Section 715.3 specifically provides for engineering analysis based on opening protective designs tested in accordance with UL 10B (NFPA 252):

The application of any of the alternative methods listed in this section shall be based on the fire exposure and acceptance criteria specified in NFPA 252, NFPA 257 or UL 9. The required fire resistance of an opening protective shall be permitted to be established by any of the following methods or procedures:

1. Designs documented in approved sources. 2. Calculations performed in an approved manner. 3. Engineering analysis based on a comparison of opening protective designs

having fire-protection ratings as determined by the test procedures set forth in NFPA 252, NFPA 257 or UL 9.

4. Alternative protection methods as allowed by Section 104.11.

APPARENT CODE INTENT The code seeks to limit the vertical transmission of fire and products of combustion between building spaces via an atrium element by prescribing a 1-hour fire-resistance-rated horizontal assembly with 60-minute opening protection to limit the height of atrium spaces to two stories in the absence of smoke control, thereby providing separation to adjacent building levels. ALTERNATIVE MATERIAL McKeon horizontal rolling fire and smoke shutters are proposed to protect floor openings at the Sherlock Building at Levels 4 and 6. This product has been tested in accordance with NFPA 252 (UL 10B) to demonstrate 2-hour fire endurance and can be labeled as oversized doors by Intertek Testing Services (ITS), identified by Ben Howell, City of Portland Senior Plans Examiner, as an approved agency.

SHERLOCK BUILDING – PORTLAND Page 4 MCKEON HORIZONTAL ASSEMBLY February 18, 2011 Alternative Material Request Revised February 22, 2011 PROJECT JUSTIFICATION The approach presented seeks to demonstrate that the use of McKeon horizontal rolling fire and smoke shutters at the Sherlock Building will provide at least an equivalent level of protection to the prescribed provisions of the OSSC.

FIRE-RESISTANCE TESTING

McKeon horizontal rolling fire and smoke shutters have been tested according to UL 10B. In an ITS report issued April 2, 1999, provided by Gensler, satisfactory test results achieved through the NFPA 252 (UL 10B) test are described, including photographs. This was the applicable test at the time, referenced by the Uniform Building Code (UBC), as testing of fire doors in the horizontal plane was not standardized. The NFPA 288 test now referenced in the current OSSC for horizontal assemblies did not become a standard until August 2, 2001. The time-temperature curve of NFPA 288 is identical to that in NFPA 252. The NFPA 252 test criteria includes a hose stream test, which the McKeon door was subject to. The NFPA committee voted to eliminate the hose stream test from NFPA 288. Therefore, the McKeon horizontal rolling door can be considered to have been subject to testing beyond the criteria currently prescribed by code. NFPA 288 clarifies in Section 1.3.3(3) that the test method does not provide a measurement of the degree of control or limitation of the passage of smoke or products of combustion through the floor fire door assembly. The McKeon door is labeled as a fire and smoke shutter, and can be provided with a listed gasket for labeling as a smoke and draft assembly. This indicates a level of performance beyond that assessed by NFPA 288.

SYSTEM ACTIVATION

Activation of the building fire alarm system will result in automatic closure of the McKeon horizontal rolling fire and smoke shutters. The minimum closing speed of the shutters is 6 inches per second. Based on a 17-foot opening, a maximum closing time of 34 seconds would be expected. This should provide for automatic segregation of the atrium spaces to maintain the degree of safety for building occupants anticipated by the code.

INSTALLED CONFIGURATION

Horizontal floor openings to be protected by the McKeon horizontal rolling fire and smoke shutters are nearly 17-foot square located at Levels 4 and 6, which exceeds the maximum tested size of 12 feet by 16 feet-8 inches. However, as described in the August 17, 2006 ITS letter, the agency provides for “oversize” doors up to 45-feet wide with an unlimited length to be labeled for approval by the Authority Having Jurisdiction (AHJ) in accordance with OSSC Section 715.4.6.3.

SHERLOCK BUILDING – PORTLAND Page 5 MCKEON HORIZONTAL ASSEMBLY February 18, 2011 Alternative Material Request Revised February 22, 2011 The presence of automatic sprinkler protection, the volume of protected space, and excess fire endurance period afforded by the product itself, supports the installation of oversized McKeon horizontal rolling fire and smoke shutters as presented below. The installed horizontal assemblies should be labeled as fire and smoke shutters. SPRINKLER PROTECTION In the Sherlock Building, closely-spaced sprinklers, approximately 6-feet on center, surround the opening on each level, as pictured in Figure 1. The presence of this enhanced sprinkler protection around the perimeter of the floor opening should limit the intensity of a flame front traveling across the ceiling toward the horizontal shutter, reducing the heat impact below that demonstrated during product testing. PROTECTED SPACE The occupancy of the Church of Scientology in Levels 2 through 6 where the protected floor openings occur is identified as Group B, a light hazard occupancy. The specific use of the space on Level 2 beneath the floor openings above is for eating at tables and chairs, which do not present a significant fire hazard. From the Level 2 floor area beneath the floor openings, the nearest horizontal shutter is nearly 25 feet above at Level 4. As the height and volume of this 2-story space exceeds that of a standard furnace used for product testing, the heat impact to the installed horizontal shutter from an unconfined fire in the Sherlock Building should be less severe than that endured during product testing. FIRE ENDURANCE McKeon horizontal rolling fire and smoke shutters have been tested to a 2-hour fire endurance rating. The subject assembly only requires a 1-hour fire resistance rating. Therefore, an additional factor of safety is provided with these shutters beyond the minimum level of protection prescribed by code.

FIGURE 1: IMAGE OF EXISTING FLOOR OPENING WITH PERIMETER SPRINKLER PROTECTION

SHERLOCK BUILDING – PORTLAND Page 6 MCKEON HORIZONTAL ASSEMBLY February 18, 2011 Alternative Material Request Revised February 22, 2011 CONCLUSION The Sherlock Building is of Type IV Heavy Timber construction and protected throughout by automatic fire sprinkler protection. A floor opening extending above Level 2 through Level 6 creates an atrium condition in the building. Section 404.5 of the OSSC describes that atrium spaces shall be separated from adjacent spaces, including by means of horizontal barriers in accordance with Section 711. At Levels 4 and 6, horizontal opening protection would be provided for the central floor opening in accordance with Section 711.8. This would effectively divide the 5-story atrium into a single-story space and two 2-story atrium spaces. In the absence of 3 or more connecting stories, atrium smoke control should not be required. The OSSC prescribes 60-minute opening protection for the subject condition, and provides for the use of alternative materials offering an equivalent level of protection. The proposed McKeon horizontal rolling fire and smoke shutters have been demonstrated to provide 120-minute opening protection based on NFPA 252 (UL 10B). Therefore, labeled oversized McKeon horizontal rolling fire and smoke shutters equipped with smoke gaskets offer the level of protection intended by code for the Church of Scientology at the Sherlock Building horizontal opening protection in accordance with OSSC Sections 715.4.6.3 and 712.8 as required by Sections 404.5 and 404.6. Please contact me at 425.745.4700 or by e-mail at [email protected] for any clarification of the information presented in this document. Prepared by: AEGIS ENGINEERING, PLLC Brian C. Thompson, P.E. Enclosures:

02Apr1999 Report of Standard Methods of Fire Tests of Door Assemblies – Horizontal Rolling Steel Fire and Smoke Shutter for McKeon Rolling Steel Door Co, by Intertek Testing Services (ITS)

17Aug2006 Letter to McKeon Door Company, by Intertek Testing Services (ITS)

6/30/12

RESUBMITTAL OF APPEAL ID #7635 WITH REVISED INFORMATION, FEBRUARY 18, 2011. This appeal submittal has been modified to remove information no longer relevant based on coordination, and to include information relevant to the discussion @ hand:

1. Letter from Fire Protection Engineer licensed in Oregon Brian Thompson, P.E. analyzing the proposed assembly.

2. Section thru atrium provided previously as well as preliminary details thru shutter assembly. Note that the size of the opening for the proposed shutter is 17’x17’.

3. Information from product manufacturer McKeon describing the horizontal shutter assembly proposed @ two levels of the atrium as described below: a) ITS Intertek Testing Services ‘Report of Standard Methods of Fire Tests of Door Assemblies; b) Letter from Intertek to McKeon Door regarding doors larger than capacity of testing facility; c) email letter from UL confirming tested capacity of door.

4. Relevant excerpts of 2/16/11 decision are also attached to this document for reference.

Code Section being appealed previously and February 16, 2011: Regulation Requirement: Evaluate the existing smoke control for compliance with current NFPA 92B basis of design. SECTION 404 ATRIUMS 404.5 Smoke Control. A smoke control system shall be installed in accordance with Section 900. Exception: Smoke Control is not required for atriums that connect only two stories.

Proposed Design: We propose to simplify this project by eliminating the spaces for which smoke control is required by providing automatic closing horizontal shutters tied to the fire & smoke alarm system so that when the fire alarm goes off the atrium divides into three spaces, non that exceed two stories. Smoke control is not required for atriums that only connect two stories. Based on our discussions with Fire Marshall Nate Takara, the following improvements should further increase the safety of the building: 1) Change all sprinkler heads throughout the building to be quick release heads, and 2) Maintain the existing water curtain & smoke detectors at the atrium perimeter and change the sprinkler heads to quick release.

Reason for Alternate: This alternate is proposed in response to a meeting with Catherine Heeb and Nate Takara at BDS. There is no change in occupancy, but there is a slight change in occupant load (the addition of classroom spaces in some areas) that triggered the suggestion to evaluate the existing smoke control system for compliance with current code. The atrium is an important feature of this historic building, providing natural light and facilitating communication within the interior environment, and our proposed improvements provide up to date life safety protection to allow this small change of use. This is a fast track project and most of the mechanical equipment is being replaced, changing the parameters for how the original system was designed. The proposed smoke barrier solution can be engineered and installed quickly and meets the safety intents of the code. Fully engineered drawings will be submitted when this project formally goes in for permit.

Page 1of 2 2/18/2011

APPEALS City of Portland Bureau of Development Services 1900 SW 4

th Ave., Suite 5000 (5

th floor)

Portland, Oregon 97201 (503) 823-7335

Building Code Appeal Form

(Appeal Information Sheet)

Re-submittal BLD #1

RESUBMITTAL WITH FURTHER INFORMATION, FEBRUARY 18, 2011. Per decision of 2/2/11 approval of this item is tied to ruling of item #1 of this appeal. Documentation of 2/18/11 decision is also attached to this document. Code Section being appealed: This appeal is being filed to ensure continued use by the new owner Church of Scientology of the “crow’s nest roof deck” approved by appeal by ZGF in 1997. The code section appealed in 1997 was section 1003.3 and concerned providing code compliant exits.

Regulation Requirement: Section 1003.3 referenced in 1997’s appeal by ZGF required: If only two exits are required, they shall be placed apart equal to not less than one half the length of the maximum overall diagonal dimension of the building or area to be served measure in a straight line between exits. [OSSC 1015.1 exception 2] Per current code, exits only need to be separated by 1/3 of the maximum diagonal dimension for area served when the building is equipped with an automatic sprinkler system. The current existing exits are 68’ apart and the overall diagonal is 140 feet and the building is fully sprinklered, so current exits comply. Previous appeal designated an occupant classification factor of 1:15.

Proposed Design: (Describe the alternate methods or materials of construction to be used or that exist. Be as specific as possible) This appeal is being filed to ensure that the previous use approved by appeal by ZGF in 1997 still stands for the new owner, Church of Scientology. The previous proposed design was described as:

• The deck is for the use of employees of ZGF Partnership. The building is fully-sprinklered and has a fire/life safety system with audio and visual alarms.

• Roof deck, area of approximately 1150 square feet, for exclusive use of ZGF Partnership/employees. ZGF is an architectural office with complete control over access to the deck.

• The deck is being built as an amenity to ZGF employees, similar to a coffee room. Their work would occur in the office spaces below. The deck is an accessory use to that office occupancy. We anticipate that the deck would be unoccupied during most of business hours; would be occupied infrequently by employees during coffee and lunch breaks, as an alternate to staying at their desk or leaving the building, during nice weather.

The deck will be for the use of Church of Scientology members only as a snack/coffee bar and as an accessory use to the business occupancy below. Members of the public will not have unmonitored access to this space.

Reason for Alternate: (Describe why the alternate is required and how it will provide equivalent health, accessibility, structural capacity, energy conservation, life safety or fire protection to what the code requires)

This appeal is being filed per request by Catherine Heeb to ensure that the previous use approved by appeal by ZGF in 1997 still stands for the new owner, Church of Scientology.

Page 2 of 2, 2/18, 2011

APPEALS City of Portland Bureau of Development Services 1900 SW 4

th Ave., Suite 5000 (5

th floor)

Portland, Oregon 97201 (503) 823-7335

Building Code Appeal Form

(Appeal Information Sheet)

Re-submittal BLD #5

��

��

��

��

�

��

��

��

��

��

� ��

��

��

� ��

��

��

��

��

��

��

��

� ��

��

��

��

��

��

��

��

��

��

��

� ��

��

��

�� !"#!$%

� $&��#�'()�

� $&��#��(�

��*�!+%�#' �

��'� ��#��'�� !"#!$% �, -.��/

��

��0�1��

��!��"��!"��

# ��"��$��

��%��&��

�� !

"��#�$%!�� &�$��

��2�34

�!�� "��$%��!�$

��

"�� '��

��'��(

��) $��#�&*

�"��( ��%��&��

�!�� "��$%��!�$ �

��)�� !��'�� "� **%��

LINE OF COIL BOX

MOUNTING ANGLE

FIRE RATED WALL

INSIDE TRACK ANGLE

SMOKE SEAL

LEADINGEDGE ANGLE

OUTSIDE TRACKANGLE

STEEL ENDPLATE@ COIL BOX

1"

(E) JOIST

FASTENER

2'-9"

10' - 2"

A.F.F.

EXISTINGCORBELLING @ATRIUM PERIMETER(SHOWN DASHED)TO BE REMOVED

3' - 0"

2' - 4"

FIRE SHUTTERMOTOR OPERATOR

1' - 6"

(N) STRUCTURALMEMBER, S.S.D.

(E) STRUCTURALMEMBER.

1 1/8"

FIRE RATED WALL

SAFETY EDGE

SMOKE SEAL

R.C. TRANSMITTER

LEADING EDGE

RECEIVING CHANNEL

SEE RCP

8'-0" A.F.F.

10' - 2"

A.F.F.

COIL BOX

FIRE SHUTTER MOTOR OPERATOR

2'-4"

COIL BOX

(N) STRUCTURAL MEMBER, S.S.D.

10' - 2"

A.F.F.

8' - 4"

A.F.F.

4

C D

3

ATRIUM OPEN TO ABOVE

3A12.22

2A12.22

4A12.22

4'-6"

GYP8' - 0"

19'-0" +/-

19'-0" +/-

17'-0" CLEAR: VERIFY IN FIELD

17'-0" VERIFY IN FIELDHORIZONTAL

SHUTTERSHOWN DASHED

Gensler

Two Harrison StreetSuite 400

San Francisco CA 94105

Tel: 415.433.3700

© 2009 Gensler

Scale

Description

Project Number

Project Name

Seal/Signature

Issue Date & Issue Description By Check

As indicated

320 SW OAK STREET,

PORTLAND, OREGON 97204

A12.22

ATRIUM PERIMETER DETAILS

01.8614.100

CLASS V ORG - PORTLAND

CHURCH OF

SCIENTOLOGY

SCALE: 3" = 1'-0"

HORIZONTAL SHUTTER EDGE DETAIL 2SCALE: 3" = 1'-0"

HORIZONTAL SHUTTER HOUSING DETAIL 3

SCALE: 3" = 1'-0"

HORIZONTAL SHUTTER SECTION DETAIL 4 SCALE: 1/4" = 1'-0"

RCP LEVELS - 03, 05 - KEY PLAN 1

2/18/2011 ISSUE TO APPEALS BOARD

1

Christine Lehto

Subject: FW: H200 Horizontal Coiling Fire Shutter [320 SW Oak Street]

On Feb 11, 2011, at 1:13 PM, "Andrew Lambridis" <[email protected]> wrote:

Hi Christine,

As requested, following please find UL’s confirmation with regard to our horizontal fire

shutters/doors. As noted below, these units were installed and tested in a horizontal plane as

their designed intended use is to close off openings in floors/ceilings.

If you have any questions or require any additional information please feel free to contact me.

Thanks,

Andy

Andrew C. Lambridis, Assoc. AIA, CSI

Senior Vice President

McKEON DOOR COMPANY

Corporate Headquarters: 44 Sawgrass Drive, Bellport, New York, USA 11713

t 800.266.9392, 631.803.3000 - f 631.803.3030

www.McKeonDoor.com

From: [email protected] [mailto:[email protected]]

Sent: Friday, February 11, 2011 3:53 PM To: Andrew Lambridis

Cc: [email protected] Subject: Re: H200 Horizontal Coiling Fire Shutter

Mr. Lambridis,

his is in response to our telephone conversation of February 11, 2011 concerning the above subject.

Based on the results of the fire test and hose stream test conducted under Project 99NK12892, File R14906

(Letter Report dated January 3, 2001), Model HF 200 single horizontal shutter type purpose fire door

achieved a 1-1/2 hr fire rating when installed in horizontal openings for 2 hr fire rated masonry/concrete

floors. The doors assemblies were tested in accordance with the Standard, “Fire Tests of Door Assemblies”

ANSI/UL 10B and are Classified as “Special Purpose Fire Doors”.

2

Only those products bearing the appropriate Classification Marking and the company's

name, trade name, trademark, or other recognized identification should be considered as

covered by UL's Classification and Follow-Up Service. Only those products bearing the

appropriate Listed Marking and the company's name, trade name, trademark, or other

recognized identification should be considered as covered by UL's Listed and Follow-Up

Service.

Authorities having jurisdiction should be consulted in all cases as to the particular

requirements covering the installation and use of UL Listed or Classified products,

equipment, systems, devices and materials.

Please contact me if you have any questions. Alec Alec Hauser Staff Engineer Fire Protection Division Phone: (847) 664-3017 Fax:(847) 313-3017 e-mail: [email protected]

- For more information about UL, its Marks, and its services for

EMC, quality registrations and product certifications for global

markets, please access our web sites at http://www.ul.com and

http://www.ulc.ca or contact your local sales representative. --

********* Internet E-mail Confidentiality Disclaimer **********

This e-mail message may contain privileged or confidential

information. If you are not the intended recipient, you may not

disclose, use, disseminate, distribute, copy or rely upon this

message or attachment in any way. If you received this e-mail

message in error, please return by forwarding the message and

its attachments to the sender.

UL and its affiliates do not accept liability for any errors,

omissions, corruption or virus in the contents of this message

or any attachments.

*****************************************************************

Documents

February 18, 2011 Revised February 22, 2011 for