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FOUNDATION VENTILATION: <br />12. IRC Section <br />(and 6” above exposed earth) and shall be <br />R408.2. Minimum net area of ventilation openings separated by an approved impervious moisture <br />shall not be less than 1 square foot for each 300 barrier, or must be of pressure treated <br />square feet of under-floor space area. One such wood, or wood of natural resistance to decay. <br />ventilating opening shall be within 3 feet of each Posts or columns in enclosed crawl spaces <br />corner of the building except one side of the building located within the periphery of the building, <br />is permitted to have no ventilation openings. supported by concrete piers or metal pedestals <br />Ventilation openings shall be covered for their shall be greater than 8 inches from exposed <br />height and width with materials identified in IRC ground and must be separated by a moisture <br />R408.2 such that the openings are not larger than ¼ barrier or be of pressure treated wood. <br /> <br />inch. <br />GIRDERS ENTERING MASONRY OR <br />15. <br /> <br />PROTECTION AGAINST DECAY: <br />13. IRC Section 402 CONCRETE WALL: <br />IRC Section R319.1(4) <br />& HCC 5-71 (28) Amending the 2006 IBC Section Ends of wood girders entering concrete or <br />2303.1.8 & (30) Amending the 2006 IBC Section masonry walls must have a minimum clearance <br />2304.11 Where required by this section, of ½ inch on tops, sides and ends, or shall be <br />of an approved species and grade of <br />protection from decay and termites shall be <br />lumber pressure treated or decay resistant <br />provided by the use of naturally durable or <br />heartwood of redwood, black locust, black <br />preservative-treated wood. Where structural lumber <br />walnut or cedars. <br />of wood frame buildings or structures are supported <br /> <br />directly on the ground by a concrete slab, or <br />POST-BEAM CONNECTIONS/FASTENING: <br />16. <br />concrete and/or masonry foundation Formosan <br />IRC R301, R407.3, R502.9. Where posts and <br />subterranean termite protection shall be provided by <br />beam or girder construction is used to support <br />either chemically treating the soil beneath and <br />framing, positive connections shall be provided <br />adjacent to the building or structure by a Hawai‘i <br />to ensure against uplift and lateral <br />licensed pest control operator, or stainless steel <br />displacement. The construction of buildings <br />termite barrier, or other termite protection measures <br />and structures shall result in a system that <br />approved by the Building Official. All soil treatment, <br />provides a complete load path capable of <br />stainless steel termite barrier, and termite protection <br />transferring all loads from their point of origin <br />measures shall be installed according to <br />through the load resisting elements to the <br />manufacturer’s recommendations for control of <br />foundation. <br />Formosan subterranean termites. Wood supporting <br /> <br />SPECIFY WOOD SPECIES & GRADES: <br />17. <br />permanent buildings and structures, which is in <br />direct soil contact or is embedded in concrete or IRC Sections R502.1, R602.1 Load-bearing <br />masonry in direct contact with earth shall be treated <br />dimension lumber for joists, beams, girders, <br />to the appropriate commodity specification of AWPA <br />studs, plates and headers shall be identified by <br />Standard U1. <br />a grade mark of a lumber grading or inspection <br />Wood in direct soil contact but not supporting any <br />agency that has been approved by an <br />permanent buildings or structures shall be treated to <br />accreditation body that complies with DOC <br />the appropriate commodity specification of AWPA <br />PS 20. In lieu of a grade mark, for wood locally <br />Standard U1 for ground contact. (Note: All fasteners milled, a certificate of inspection issued by a <br />used in pressure treated lumber [sills, joists to sill, lumber grading or inspection agency meeting <br />rim joist to sill, etc.] shall be hot dipped galvanized, the requirements of this section may be <br />stainless steel, silicon bronze or copper.)accepted. <br /> <br /> <br /> <br />POSTS, POLES AND COLUMNS: <br />14. IRC FLOOR FRAMING: <br />18. IRC Sections R502.3, <br />Section R319.1.2, R317.1.4. Columns and posts <br />R502.6, R502.6.1, R502.7 The ends of each <br />supporting permanent structures that are <br />joist, beam or girder shall have not less than 1- <br />embedded in concrete or in direct contact with the <br />1/2” of bearing on wood or metal or not less <br />ground or embedded in concrete exposed to the <br />than 3” on masonry or concrete. Joists framing <br />weather shall be approved pressure treated wood <br />from opposite sides over a bearing support <br />suitable for ground contact use. Posts or columns <br />shall lap a minimum of 3 inches and shall be <br />which are exposed to weather, or are located in <br />nailed together with a minimum three 10d face <br />basements or cellars, shall be supported by piers <br />nails. Joists shall be supported laterally at <br />or metal pedestals projecting 1 inch above the floor <br />each end and at each intermediate support <br />The County of Hawai‘i is an Equal Opportunity Provider and Employer <br /> <br /> <br />101 Pauahi Street, Suite 107 74-5044 Ane Keohoklole Hwy <br />ā <br />Hilo, Hawai‘i 96720 Kailua-Kona, Hawai’i 96740 <br /> <br />Tel: (808) 961-8331 Page 12 Tel: (808) 323-4720 <br /> <br />