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TABLE 8502.3.1(1) FLOOR JOIST SPANS POR COMMON LUMBER <br />SPECIES <br />(Residential sleeyhrg areas, live load = 30 psf, L/D=3601 Repealed). Table <br />8502.3.1(1) is hereby repealed and in place thereof shall be substituted Table <br />8502.3.1(2) FLOOR JOIST SPANS FOR COMMON LUMBER SPECIES <br />(Residential living areas, live load = 40 psf, LlD=360) <br />8506.2.2 Base (Amended <br />A 4-inch-thick (102 rmn) base course consisting of clean graded sand, clean <br />graded gravel, clean graded crushed stone passing a 2-inch (5l nun) sieve shall <br />be placed on the prepared subgrade when the slab is below grade. <br />Exception: <br />A base course is not required when the concrete slab is installed on well-drained <br />or sand- gravel mixture soils classified as Group I according to the United Soil <br />Classification System in accordance with Table 8405.1. <br />TABLE R802.4~) CEILING JOIST SPANS FOR COMMON LUMBER <br />SPECIES <br />(Uninhabitable attics without storage, live load =10 psf, L/D = 240) (Amended). <br />Table 8802.4.1(1) is hereby repealed and in place thereof shall be substituted <br />TABLE 8802.4(2) CEILING JOIST SPANS FOR COMMON LUMBER <br />SPECIES (Uninhabitable attics with limited storage, live load = 10 psf, L/D <br />=240) <br />8903.4.1 Overflow drains and scuppers (Amended). <br />Where roof drains are required, overflow drains having the same size as the roof <br />drains shall be installed with the inlet flow line located 2 inches (51 mm) above <br />the low point of the roof, or overflow scuppers having three times the size of the <br />roof drains and having a minimum opening height of 4 inches (102 mm) maybe <br />installed in the adjacent parapet walls with the inlet flow located 2 inches (51 <br />mm) above the low point of the adjacent roof. The installation and sizing of <br />overflow drains, leaders and conductors shall comply with the Ohio Plumbing <br />Code. <br />Overflow drains shall discharge to an approved location and shall not be <br />connected to roof drain lines. <br />8907.3 Recovering versus replacement (Amended). <br />New roof coverings shall not be installed without first removing existing roof <br />coverings where any of the following conditions occur: <br />1. Where the existing roof or roof covering is water-soaked or has <br />deteriorated to the point that the existing roof or roof covering is not adequate as <br />abase for additional roofmg. <br />2. Where the existh~g roof covering is wood shake, slate, clay, cement or <br />asbestos- cement tile. <br />3. Where the existing roof: <br />a) Has three or more applications of any type of roof covering or <br />b) Is unacceptable per Section 8907.2 or <br />c) Is unacceptable for new application per the manufacturer's specifications. <br />4. For asphalt shingles, when the building is located in an area subject to <br />severe hail damage according to Figure 8907.3. <br />Exceptions: <br />1. Complete and separate roofmg systems, such as standing-seam metal roof <br />systems, that are designed to transmit the roof loads directly to the building's <br />stmctural system and that do not rely on existing roofs and roof coverings for <br />support shall not require the removal of existing roof coverings. <br />