HomeMy WebLinkAboutBLG_BLD-PEM-001_Protection_of_Openings-Plan_RequirementsDEPARTMENT OFPUBLIC WORKS –BUILDINGDIVISION
COUNTY OF HAWAI'I - 101 Pauahi Street, Suite 7 - Hilo, Hawai‘i 96720
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The County of Hawai i is an Equal Opportunity Provider and Employer
BLD-PEM-001
PROTECTION OF OPENINGS – PLAN REQUIREMENTS
The following outlines the procedures to be used in Residential Building Permit
Applications.
1. Where protection of openings is required (i.e., the site wind speed has been
determined to be 130 mph or greater), the County Residential Building Code 5B
Section R301.2.1.2 requires that either a) glazed opening protection, b) wood
structural panels, or c) a safe room be provided.
2. The cover sheet of the plans shall provide the following information:
a. Site wind speed based on the ASCE 7-16 as determined by the ASCE 7
Hazard tool.
b. How the requirement for protection of openings will be satisfied.
3. If a safe room is used to satisfy this Section, then a Structural Engineer’s details
and calculations shall be submitted for review.
4. If impact glazing is used to satisfy this Section, then the following note shall be
included on the plans.
*** PROTECTION OF OPENINGS VIA R301.2.1.2 ***
Per Chapter 5B RESIDENTIAL BUILDING CODE Section R301.2.1.2,
protection of openings prior to a hurricane event is a life-safety
requirement of the County of Hawaii.
It is understood that the Design Professional of Record, Contractor
and/or Home Owner Builder, comply with the provisions of this
Section. Failure to comply may result in a significant threat to life-
safety.
BLD-PEM-001
August 24, 2022
Page 2 of 2
County of Hawai’i is an Equal Opportunity Provider and Employer.
By this note on the plans, the Architect or Structural Engineer of
Record, Contractor or Owner-Builder, and Homeowner acknowledges
the Section R301.2.1.2 requirements and indicates their decision to
protect glazed openings from windborne debris by using glazing that
meet the requirements of the Large Missile Test of ASTM E1996 and
ASTM E1886 as modified in Section 301.2.1.2.1.
5. If wood structural panels are to be used to satisfy this Section, then the following
note shall be included on the plans. (For convenience, a fastener type and
spacing was selected. Alternatively, a fastener type and spacing from the County
Residential Building Code 5B Table R301.2.1.2 may be substituted by the
homeowner.)
*** PROTECTION OF OPENINGS VIA R301.2.1.2 EXCEPTION 1 ***
Per Chapter 5B RESIDENTIAL BUILDING CODE Section R301.2.1.2,
protection of openings prior to a hurricane event is a life-safety
requirement of the County of Hawaii.
It is understood that the homeowner will comply with the provisions
of this Section. Failure to comply may result in a significant threat to
life-safety.
By this note on the plans, the Contractor and Homeowner or Owner-
Builder acknowledge the Section R301.2.1.2 requirements and
indicates his decision to install wood structural panels with a
minimum thickness of 7/16 inch to satisfy the protection of openings
requirement. Panels shall be precut so that they can be quickly
installed by screwing to the perimeter structural framing containing
the glazing. Panels shall be predrilled to facilitate the installation of
No. 8 corrosion-resistant wood screws (with 2-inch embedment
length) at 8 inch maximum spacing (or per County Residential
Building Code 5B Table R301.2.1.2). Screws shall be located a
minimum of 1 inch from the edge of the panel and along two parallel
panel edges as a minimum. The maximum panel span between these
two parallel panel edges is limited to 8 feet.