Hawaii Administrative Rules › Title 3 - DEPARTMENT OF ACCOUNTING AND GENERAL SERVICES › Building Code Council › State Building Code Council › Amendments to the 2018 ICC International Building Code (IBC) › 47 - Preservative-treated wood

Current through June, 2024
Section 2303.1.9 is deleted in its entirety and replaced to
					 read as follows:
"2303.1.9
Preservative-treated wood.
Structural lumber, including plywood,
				  posts, beams, rafters, joists, trusses, studs, plates, sills, sleepers, roof
				  and floor sheathing, flooring and headers of new woodframe buildings and
				  additions shall be:
1. Treated in accordance
				  with AWPA Standard U1 (UC1 thru UC4B) for AWPA Standardized Preservatives, all
				  marked or branded and monitored by an approving agency. Incising is not
				  required, providing that the retention and penetration requirements of these
				  standards are met.
2. For SBX
				  disodium octaborate tetrahydrate (DOT), retention shall be not less than 0.28
				  pcf B2O3 (0.42 = pcf DOT) for exposure to Formosan termites. All such lumber
				  shall be protected from direct weather exposure as directed in AWPA UC1 and
				  UC2.
3. For structural
				  glued-laminated members made up of dimensional lumber, engineered wood
				  products, or structural composite lumber, pressure treated in accordance with
				  AWPA U1 (UC1 thru UC4B) or by Light Oil Solvent Preservative (LOSP) treatment
				  standard as approved by the building official. Water based treatment processes
				  as listed in paragraphs 1 and 2 are not allowed to be used on these products
				  unless specified by a structural engineer for use with reduced load values and
				  permitted by the product manufacturer.
4. For structural composite wood products,
				  treated by non-pressure processes in accordance with AWPA Standard U1 (UC1, UC2
				  and UC3A) or approved by the building official.
2303.1.9.1 Treatment. Wood treatment shall
				  include the following:
1. A quality control
				  and inspection program which meets or exceeds the current requirements of AWPA
				  Standards M2-01 and M3-03;
2.
				  Inspection and testing for the treatment standards as adopted by this code
				  shall be by an independent agency approved by the building official, accredited
				  by the American Lumber Standards Committee (ALSC) and contracted by the
				  treating company;
3. Field
				  protection of all cut surfaces with a preservative, which shall be applied in
				  accordance with AWPA Standard M4-02 or in accordance with the approved
				  preservative manufacturer's ICC-Evaluation Services report
				  requirements.
2303.1.9.2
				  Labeling. Labeling shall be applied to all structural lumber 2 inches or
				  greater nominal thickness, with the following information provided on each
				  piece as a permanent ink stamp on one face or on a durable tag permanently
				  fastened to ends with the following information:
1. Name of treating facility;
2. Type of preservative;
3. AWPA use category;
4. Quality mark of third party inspection
				  agency;
5. Retention minimum
				  requirements; and
6. Year of
				  treatment.
All lumber less than 2 inches in nominal thickness, shall
					 be identified per bundle by means of a label consisting of the above
					 requirements. Labels measuring no less than 6 inches by 8 inches shall be
					 placed on the lower left corner of the strapped bundle.