Appeal 33701
Appeal Summary
Status: Decision Rendered
Appeal ID: 33701
Submission Date: 2/19/25 10:35 PM
Hearing Date: 2/26/25
Case #: B-001
Appeal Type: Building
Project Type: commercial
Building/Business Name: Binford Apts
Appeal Involves: Erection of a new structure
Proposed use: Apartment leasing office and community clubhouse
Project Address: 6905 NE Hancock St
Appellant Name: Franklin Callfas
LUR or Permit Application #: Other
Stories: 1 Occupancy: B, A-3 Construction Type: VB
Fire Sprinklers: No
Plans Examiner/Inspector: Steven Mortensen
Plan Submitted Option: pdf [File 1] [File 2] [File 3] [File 4]
Payment Option: electronic
Appeal Information Sheet
Appeal item 1
| Code Section | 2019 OSSC §703.3 Alternative Methods for Determining Fire Resistance |
|---|---|
| Requires | 703.3 Alternative methods for determining fire resistance. The application of any of the alternative methods listed in this section shall be based on the fire exposure and acceptance criteria specified in ASTM E 119 or UL 263. The required fire resistance of a building element, component or assembly shall be permitted to be established by any of the following methods or procedures:
|
| Code Modification or Alternate Requested | Allow applied intumescent coating as approved fire protection for steel connections based on engineering analysis. |
| Proposed Design | Sherwin-Williams FX5120 intumescent paint is applied to the steel connection plates and bolts at a thickness sufficient to provide a 1-hr fire-resistance rating according to the results output by the Firetex Design Estimator (FDE) software. The thickness is either 121 or 122 mils, measured in the field. RECONSIDERATION TEXT The heavy wood members are connected with steel brackets that are concealed on one face with the wood. A 1-hour fire-resistance rating will be achieved by the application of 75 mils of intumescent coating to the gusset plates. The site fireproofing contractor has applied Sherwin Williams IFRM to a Dry Film Thickness (DFT) of 122MILS. This DFT exceeds the thickness required. |
| Reason for alternative | The plates are not a design covered by any specific UL 263 test and therefore do not meet the requirements for 703.2. Section 703.3, method 4 allows analysis based on comparison. As noted on the attached report, the output of the FDE software is as per the UL Listed/Verified process for UL263 / ASSTM E119. RECONSIDERATION TEXT Due to the unique conditions, fire protection for the steel connection brackets is not supported by listed/tested ASTM E119 assemblies and therefore require engineering evaluation to meet the protection standards per Chapter 7 of OSSC. An engineering analysis provided by Franklin Callfas, an Oregon registered FPE is attached to support this alternate. |
Appeal Decision
An alternate method for determining the fire resistance rating of steel plates: Granted as proposed. Please note, that this approval does not include a review of the adequacy of the bolts for expected char depth or fire rating of the wood members based on calculated char.
"The Administrative Appeal Board finds that the information submitted by the appellant demonstrates that the approved modifications or alternate methods are consistent with the intent of the code; do not lessen the health, safety, accessibility, life, fire safety or structural requirements; and that special conditions unique to this project make strict application of those code sections impractical.