Appeal 8081

Appeal Summary

Status: Decision rendered

Appeal ID: 8081

Submission Date: 10/20/11 8:21 PM

Hearing Date: 10/26/11

Case #: B-010

Appeal Type: Building

Project Type: commercial

Building/Business Name: The Ocean, Building 2

Appeal Involves: Alteration of an existing structure

Proposed use: Mixed Use

Project Address: 511 NE 24th Ave

Appellant Name: Brett Schulz

LUR or Permit Application #: Permit 11-167343-CO

Stories: 1 Occupancy: F-2, R-3, B and/or M Construction Type: V-B

Fire Sprinklers: Yes - Residential unit only

Plans Examiner/Inspector: Peter Drake, Marcia Karr

Plan Submitted Option: pdf [File 1] [File 2] [File 3] [File 4] [File 5]

Payment Option: electronic

Appeal Information Sheet

Appeal item 1

Code Section	OEESC 404.8
Requires	OEESC 404.8 requires that exterior doors meet ASTM E 283 air leakage requirements.
Code Modification or Alternate Requested
Proposed Design	Utilizing aluminum frame, double glazed overhead doors with weatherstripping, in three locations. Heat loss due to infiltration will be offset by using 97% efficient air-to-air heat pumps.
Reason for alternative	The overhead doors are an important part of the building design. It is not possible to meet prescriptive energy code with this type of door. It is anticipated that the 97% efficient heat pumps will exceed the heat loss from the overhead doors, providing a net gain in energy conservation.

Appeal item 2

Code Section	OSSC 903.2.8
Requires	OSSC 903.2.8 requires an automatic sprinkler system be provided throughout all buildings with a Group R fire area.
Code Modification or Alternate Requested
Proposed Design	Installation of 13R sprinkler system in residential unit only. A one hour rated partition will separate the residential unit from the commercial portion of the building. An additional layer of 5/8” gyp. board will be added to one side of the wall.
Reason for alternative	The one hour demising wall with additional layer of gyp. board will provide equivalent protection to a fully sprinklered building.

Appeal item 3

Code Section	Table 508.4
Requires	Table 508.4 requires one hour occupancy separation between F-2 and R occupancies.
Code Modification or Alternate Requested
Proposed Design	Provide one hour rated floor/ceiling between commercial bathrooms and sleeping lofts above, based on UL Design L507, with the following modifications: 1) Use 2x6 joists instead of 2x10. 2) Omit metal screening, 3) Use solid wood blocking instead of cross bridging, and 4) Use two layers of 5/8” gyp. board at ceiling instead of one ½” layer.
Reason for alternative	The revised design with additional layer of gyp. board will provide equivalent or better protection compared to the standard design.

Appeal Decision

1. Air infiltration at overhead door: Denied. Proposal does not provide equivalent energy efficiency. Appellant may contact Marcia Karr (503-823-1107) for more information.

2. Fire sprinkler coverage: Denied. Proposal does not provide equivalent fire protection. Appellant may contact Peter Drake (503-823-7717) for more information.

3. Alternative fire-rated floor-ceiling assembly: Denied. Proposal does not provide equivalent fire resistance. It appears feasible to provide an approved assembly. Appellant may contact Peter Drake (503-823-7717) for more information.