Correspondence Tigard
UNITED METHODIST
644;04_tJD 401
August 6, 2022 RECEIVED
AUG 10 2022
Mark Van Domele, Building Official CITY OF TIGARD
City of Tigard BUILDING DIVISION
13125 SW Hall Blvd
Tigard, OR 27223
RE : Permit Application -Tigard United Methodist Church OFFICE COPY
The TUMC requests issuance of a permit authorizing the change of Occupancy Classification for the
Gym area from "Multiple Purpose Room"-7 SQ FT/person to"Exercise Room"—50 SQ FT/persons
and the decommissioning of the 3" Dry Pipe Automatic Fire Sprinkler System.
(See Page 5 for further justification)
Occupancy Classification
When permits were issued for the 1996 addition to the Tigard United Methodist Church,the plans
indicated that the "Addition" was classified as a new "Multi-Purpose Room" having 6,256 SQ.FT. The
Occupancy Load for that space was calculated at 7 Sq Ft per person, which developed a load of 894
persons. That classification established the occupancy as a "Public Assembly,A2.1 occupancy".
The classification of"Public Assembly" is typical for Gymnasiums, because they normally have space for
seating people to view events. In this case, in this room,there is no seating space for any assembly of
people.
It is requested that the occupancy classification be changed to "Exercise Room" and the occupant load
be recalculated at 50 Sq Ft per person. Including the area in the Alcove,that would establish a new
occupancy load of 126 persons (6,336 SQ FT [a more accurate number] /50 = 126)which eliminates the
original requirement for a fixed Automatic Fire Protection System.
Page 1 of 7
www.TigardUMC.com • info@tigardumc.com
Tigard Campus: 9845 SW Walnut Place • Tigard, OR 97223 • 503-639-3181
Bethlehem House of Bread: 9055 SW Locust • Tigard, OR 97223
Analysis of Allowable Area, Based upon "1994 UBC"
To confirm that the building(s) stayed within the allowable area, the plans were carefully reviewed to
ensure that the complex meets the requirement of allowable area without the fire protection system.
The "2 hour Area Separation Fire Wall"that was part of the 1996 addition allows the building areas on
each side of that fire wall to be considered a "separate" building.
The original permit construction plans for the 1996 addition notes allowable areas as follows:
Allowable area: Type 5 - One Hour Construction (1994 UBC)
Basic Area -10,500 SQ FT
Separation on Two sides—50% increase
Multi-story—100% increase
Total Allowable area— 10,500 X 1.5 X 2 =31,500 SQ FT.
See page 7 for Project Data sheet shown on 7/16/96 permit plans
Carefully reviewing the construction plans, dated 7/16/1996 (revised 2/13/97), 1 calculate the total
building area as follows:
Existing building prior to addition
Lower level 14,546 SG FT
Upper level 12,831 SQ FT
Total 27,377 SQ FT
Complex after addition (With 2 Hour Area Separation Fire Wall)
Area North side of 2 Hr Wall (All New) South Side of 2 Hr Wall (Old and some New)
Lower level 6,336 SQ FT Lower Level 16,019 SQ FT
Upper 0 SQ FT Upper Level 14,304 SQ FT
Total 6,336 SQ FT I Total 30,323 SQ FT
With both sections of the buildings being within the allowable area of 31,500 SQ FT, and the occupancy
classification changed to Exercise Room, the total complex will be in code compliance without the
Automatic Fire Sprinkler System.
Page 2 of 7
www.TigardUMC.com • info@tigardumc.com
Tigard Campus: 9845 SW Walnut Place • Tigard, OR 97223 • 503-639-3181
Bethlehem House of Bread: 9055 SW Locust • Tigard, OR 97223
i
The Scope of Decommission will include:
1. Fire Department Connection will be removed and the post pipe will be capped.
2. Fire Sprinkler Riser Room Signs on the exterior of riser room will be removed.
3. Main Control Valve at the riser will be closed.
4. All downstream pipes will be drained.
5. Air Compressor will be disconnected from power.
6. Dry Pipe Sprinkler Valve will have front cover removed.
7. Permanent Sign or City Permit authorizing decommission will be posted at riser.
8. Water Flow Alarm Switch will be disconnected.
9. Tamper Alarm Switches at valve pit located at Frewing Street and the Main Control Valve will be
disconnected.
10. Water main from Frewing Street to on-site fire hydrant will remain in service.
11. The seven (7) Sprinkler Heads on the feed main in the lower hall will be removed.
12. All exposed Sprinkler Heads in the Exercise Room (Gym) will be removed.
13. Low point drains and Inspector Test valves will be left in the open position.
14. Action Alarm Company will be contacted to disconnect tamper and water flow automatic alarm
signal devices. They will also be requested to notify Alarm Central Station of changes.
15. The annunciator panel in lobby will be updated.
16. Alarm Central Station will be notified.
17. WACCA (Dispatch Center) will be notified.
18. TVF&R will be notified.
19. TVF&R "KNOX" key Box info will be updated.
20. TUMC SOG's will be updated.
a. 2.3 Fire Department Key Box
b. 3.6 Fire Sprinkler System
c. 3.11 Fire Alarm System
21. "Occupancy Load" signs listing 126 persons would be posted at Gym exits.
22. Final Inspection will be called for.
Page 3 of 7
www.TigardUMC.com • info@tigardumc.com
Tigard Campus: 9845 SW Walnut Place • Tigard, OR 97223 • 503-639-3181
Bethlehem House of Bread: 9055 SW Locust • Tigard, OR 97223
Reason for Request
Leaks Detected
Multiple leaks in the deteriorating 3"fire sprinkler system feed main in the gymnasium concealed
attic space.
In August 2020 after experiencing the air compressor running excessively,the system was charged with water to
help identify the location of the leak. It was located in the 3"feed main above the ceiling. The 3" sprinkler feed
main had rusted through. Patch#1 was installed and the system was placed back in service.
Access to the fire sprinkler feed main leak is 25 plus feet above floor in the attic. Patch#12020
k
+c
4�
In June of 2022 a second leak was detected and patched.The second leak is located approximately 10 feet up
stream from the first leak.
More audible air leaks
Patch#1
and visual rust spots
Second leak 2022 Patch#2
w
After Patch#2 was installed,the system was placed back in service and as the air press began to build, additional
air leaks could be detected downstream just past the Patch#1 which was installed in 2020.
Page 4 of 7
www.TigardUMC.com • info@tigardumc.com
Tigard Campus: 9845 SW Walnut Place • Tigard, OR 97223 • 503-639-3181
Bethlehem House of Bread: 9055 SW Locust • Tigard, OR 97223
Justification for Decommissioning the System
1. No seating for people viewing
The Building Code does require Automatic Fire Protection System's to be installed in "Public
Assembly Occupancies". This room was classified as a "Public Assembly" when it went
through the plan review process when original permits were issued.
The classification of"Public Assembly" is typical for Gymnasiums, because they normally
have space for seating people to view events. In this case, in this room, there is no seating
space for any assembly of people.
2. Two Hour Area Separation Fire Wall
The Gym is separated from the remainder of the TUMC building by a 2 Hour Area Separation
Fire Wall. Both openings are provided with 1%fire rated self-closing assemblies. (Double
door to lower hall and rolldown fire door on viewing window). This 2 hour Area Separation
Wall allows the complex to be classed as "Separate Buildings"
3. Low Fire Load
The only combustible contents within the gym are the
toys, matts and various storage containers used for and
rtxma.hd Mf9yd dMred Methodbt Chu.ch
by the TUMC"Indoor Play Park". The only time these
contents would have a concentration high enough to
generate sufficient heat to activate a sprinkler head
would be when these items are stored in the alcove. % -- -- -- _-
When these toys are spread out on the Gym floor for
the enjoyments of the kids, the fire load anywhere in
the gym is reduced to a point where it is questionable if there is a fire load anywhere that is
sufficient to generate enough heat to activate a sprinkler head.
TUMC operates the "Indoor Play Park" during the school year from 9:00 AM to 1:00 PM 4
days per week. This event is for kids through 5 years of age. A normal number of kids at one
time is 30—50. Occasionally on Saturdays, the "Play Park" will be used for birthday parties.
That might draw 25-30, including adults.
4. Limited numbers of occupants
Outside of the "Play Park",the use of the space is typically limited to small groups including
church members shooting baskets,the church youth group, volley ball or basketball team
practices. No compensation events are held. Maybe 25—30 people.
Page 5 of 7
www.TigardUMC.com - info@tigardumc.com
Tigard Campus: 9845 SW Walnut Place - Tigard, OR 97223 - 503-639-3181.
Bethlehem House of Bread: 9055 SW Locust - Tigard, OR 97223
S. Occasional higher occupancy events
a. United Methodist Women's Rummage sale
Once a year for a period a 1 %2 weeks,the fire load would be increased during the time
the UMW Rummage Sale is set up in the room.
The public is invited to the sale and the total occupancy load at any one time would
be less than 50-60 people.
b. The last event that the church membership held in the room that had a larger number
of people was 2011. About 70-80 members were celebrating the 100th year
anniversary of Tigard United Methodist Church.Tables were set and a potluck meal
was provided.
6. The 2 Hour Fire Separation Wall puts both section of the building within the Allowable Area.
Request for Approval
Because of the re-classification of the occupancy use in the gym portion and the 2 hour area
separation wall,Tigard United Methodist Church requests authorization to decommission the
automatic fire sprinkler system with the understanding that the items listed in the "Scope of
Decommission" (page 3)are part of the authorization.
Thank you,
David W Nelson,Trustee
Tigard United Methodist Church
9845 SW Walnut Place
Tigard, Oregon 97223
503 705-5073
Page 6 of 7
www.TigardUMC.com • info@tigardumc.com
Tigard Campus: 9845 SW Walnut Place • Tigard, OR 97223 • 503-639-3181
Bethlehem House of Bread: 9055 SW Locust • Tigard, OR 97223
Attachment
"Project Data Sheet" from cover sheet of 1996 construction plans
OCCUFANCIES: SANCTUARY,FE'.LOWSHIF HALL.MULTS•FURFOSE ROOM(A55EN3L'Y
KOOMS MORE THAN 300)-A2.1
CLA5590.OVS(EDUCAT;CK LE55 THAN 300.L=S-5 THAN 12 HCUR5 PER WEEK)
DAYCARE-E3
DCCUFANT LOA05: EX15T.NG SANCTUARY-627 L.F.OF FEW 1 18"=418
EXISTING 5ALCONY•130 L.F.OF FEW 118'-67
E.'!15T1NG FELLCWSHiF HALL-3921 5.Fr1 7 561
NEW MULTI-PURPOSE RDOM•6256 S.F.17•894
CONSTKLICTIO* EX!5T1NG 5UIL08NG:TYFE 5,ONE HOUR,UN5rRINKLEP
NEW BUILDI.WG:TYPE 5.ONE HOUR.FULLY 5M.NKLED
(TWO HOUR AREA 5EFARATCN WALL OETWEEN 4E".k AND
ExISTtNG BUILDL'1G5.)
N0.OF STOCE.5: 2
EXISTING AREA: LOWER LEVEL•14,6.45 5a-F'
UFFER LEVEL 13.773 5a FT.
TOTAL AREA -26,Ala SQ.FT.
NEW AREA LOWER LEVEL • S„924 50.FT.
UrFER LEVEL 2,5!450,FT.
TOTAL AREA 11.4355050.FT.
AU,'DWAZLE AREA: 5A5;C AREA 10.500 55:.FT.
SEFAIZAT10N ON TWO SIDES-50".INCREA5E
MULTI-STORY•TOM NNCKEASE
TOTAL ALUCW A.ALE AREA 10,500 x 1.5,x 2 x 31,500 Sc2.FT.
'OILETFfXTURES: SIUM-2 rKoyV,DED
WC I URINALS14 WC/URINALS 22
LAV 5:12 LAV5:16
DRINK.FTN;2 DRz"Nv.FTN:2
4'ARKSNG REpUiKED; 105
rARKING 1° *Vl9ED: 819
�
Page 7 of 7
www.TigardUMC.com • info@tigardumc.com
Tigard Campus: 9845 SW Walnut Place •Tigard, OR 97223 • 503-639-3181
Bethlehem House of Bread: 9055 SW Locust • Tigard, OR 97223