1900 SW 4th Ave, Portland, OR 97201
|Status: Decision Rendered - Reconsideration of ID 11253|
|Appeal ID: 11423||Project Address: 13 NE 3rd Ave|
|Hearing Date: 12/31/14||Appellant Name: Samir Mokashi|
|Case No.: B-008||Appellant Phone: 5034885651|
|Appeal Type: Building||Plans Examiner/Inspector: David Jones|
|Project Type: commercial||Stories: 21 Occupancy: R-2, B, A-2, S-1, S-2, M Construction Type: I-A|
|Building/Business Name:||Fire Sprinklers: Yes - THROUGHOUT|
|Appeal Involves: Reconsideration of appeal||LUR or Permit Application No.: 14-151030-CO|
|Plan Submitted Option: pdf [File 1] [File 2] [File 3]||Proposed use: Residential, Parking, Commercial|
Types I and II. Types I and II construction are those types of construction in which the building elements listed in Table 601 are of noncombustible materials, except as permitted in Section 603 and elsewhere in this code.
The proposed design of the decking for the fifth floor amenity space at the Burnside Bridgehead uses Ipe wood decking material. Protection measures include:
|Reason for alternative|
The proposed design uses Ipe wood decking as a walking surface on top of a concrete floor and roof assembly. The material, with a Class A flame spread rating, meets the intent of non-combustible materials in Type IA.
The intent of 2010 OSSC §602.2 is to protect the structure of a Type IA building from materials that are combustible in order to allow additional building size. The Class A flame spread of the Ipe decking, combined with the 2-hour concrete roof, will limit the spread of fire and will minimally contribute to the fire load of the building. The attached flame spread test results, shows the spread of flame on the Ipe decking is less than 25. The outdoor nature of the amenity space means that smoke and hot gases, the primary threats to life safety from a fire event, will not collect and hinder egress
We believe the protective measure provided by the Class A flame spread rating of the Ipe, provides equivalent protection and we therefore request approval of this proposed design.
Ipe wood decking at roof terrace: Granted as proposed.
Note: sleepers and supports are to be non-combustible materials.
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 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.