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FOUNDATIONS Footings shall bear undlsturDed soil. on firm 2. Fills to De used to support footings shall be engineered (report required) or shall be concrete. OUBC 2903-a 3. Foundation sections 12"/15"/18" wide, 6"/7"/8" thick and 12"/18"/24" depth below natural grade and finish grade are required. OUBC Table 29-a 4. Provide underfloor vents of 1 sq . ft . per 150 sq. ft . of underfloor area. Openings shall be as close to corners as practical and provide cross ventilation. OUBC 2516 (c)-6 5. Provide underfloor drainage if space ~s subject to potential storm er groundwater accumulation. OUBC 2910 6. Reinforcement required for foundation walls. Extended 1/2" s~ll bolts, min. 7" into concrete. Space max. 6' o.c. and within 12" of ends. 2907 (f) 8. Provide min. 18" x 24" access to crawl space, located not over 20' from plumbing cleanouts (OUPC 406-g) or furnace (OUMC 804-b). Pipes, ducts and other nonstructural construction shall not interfere with accessability to or within the crawl space. OUBC 2516 (c) 2. 9~. Vapor barriers shall be · nstalled on the ground in crawl spaces and on the warm side of exterior walls. 5303 (f) 5. Ground cover shall turn 12" up the foundat~ on wall. 10. The required clearance for wood members above grade is 6" for mudszlls, 12" for girders and 18" for 3OlStS. OUBC 2516 (c) 11. Ail pests to be mounted on approved supports. OUBC 2516 (c) 4 CONSTRUCTION REQUIREMENTS 12. Fire block studwalls and partitions (including furred spaces) at floor, ceiling, soffit and at mid height and along stair stringers. Draft stops shall be provided in the following locations. (1) in the concealed space of a floor ceiling assembly in a single family dwelling dividing the area in to equal spaces not over 1000 sq. ft. (2) Draft stops shall be installed in the attics, mansards, overhangs and similar concealed spaces of buildings containing more than one dwelling unit. Such draft stops shall be above and in line with walls separating tenant spaces from each other. OUBC 2516 (f) . Qarage door header shall be min. [/~ D.F. %2 with double cripples. 14. Use header, beam or rafter sizes noted on the plans. ~ Trusses shall be engineer approved. Provide trusses details to Marion County Building Department before framing inspection. 16. A ridge board not less in depth than the cut end of the rafter is required. It shall be a vertical load bearing member when roof slope is less than 3" in 12". OUBC 2517 (h) 3 17. Rafter ties spaced max. 4' o.c. arc required immediately above ceiling ]oists which are not parallel to the rafters. OUBC 2517 (h) 4 18. Roof purlins must not be smaller than the rafters they support. The max. span for 2 x 4 / 2 x 6 roof purlins is 4' & 6' For purlin supports provide struts, not smaller than 2 x 4 with an unbraced length not over 8 ' and not flatter than 45 degrees to the gorizontal to bearing wall or partitions. OUBC 2517 (h) 5 ~. All weather shall be exposed plywood EXTERIOR type and at least C-C grade. Attention: Roof overhangs. 0~ Provide screened attic vents with a net free area of 1/150 of the attic area (or 1/300 if half is along eaves and the balance at least 3' higher). OUBC 3205-c 21. Roof shall be sloped for drainage. Valleys shall be supported (flat valleys prohibited. ) Shingles (any kind) shall not be installed on a slope of less then 4" in 12". composition shingles require a 15 pound asphalt felt base sheet. Chapter 32. ~. Provide min. one hour fire ~eparation between garage and house. Separation shall extend to roof line or across ceiling and remaining bearing walls. Use min. 1 3/8" solid core door. OUBC 503 (d) exception 3. 23. Elements of appliances which create a glow, spark or flame shall be located a min. of 18" above garage floor. OUMC 508 24. Appliances subject to mechanical damage shall be guarded by a protective barrier. OUBC 508 h' Clothes dryer located in an area at is habitable or containing other fuel burning appliances shall be exhausted to the outside. OUMC 1.903