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Footings shall bear on firm undisturbed soil. 2. Fills to be used to support footings shall be engineered (report required) or shall be concrete. OUBC 2903-a 3. ~oundation sections 12"~18" wide, thick and i£"/~24" depth below 6"~/ 8" natural grade and finish grade are required. OUBC Table 29-a 4. Maximum slopes for unstabilized cuts and fills are 2 horizontal to i vertical. OUBC 2903-(a) 5. Provide uuderfloor vents of 1 sq. ft. per 1SO sq. ft. of underfloor area. openings shall be as close to corners aa practical and provide cross ventilation. OUBC 2516 (c)-6 6. Provide underfloor drainage of space is subject to potential storm or groundwater accumulation. OUBC 2910 walls over 4' in height, min. #4 bar Bars shall be continuous with overlap of min. i0 diameters. C~e bar 4" from bottom and one 4" from to$ of foundation wall. 8. Extend ½" sill bolts, min. 7" into con- crete. Space max. 6' o.c. and within 12" of ends. 9. Provide min. 18" x 24" access to crawl space, located not over 20' from plum~,ing cleanouts (ouPC 406-g) or furnace (OUMC 804-b). Pipes, ducts and other nonStructural construction shall not interfere with cessability to or within the crawl space. OUBC 2517(c)2 10. Vapor barriers shall be installed on the fround in crawl spaces and on the warm side of exterior walls. OUBC 5303 (f) 1.d. 11. The required clearance for wood members above grade is 6" for mudsills, 1£" for ~irders and 18" for joists. OUBC 2517-c 12. Ail posts to be mounted on approved supports. OUBC 2517 (c) 4 CONSTRUCTION REQUIREMENTS 13. Cross bridge or solid block 2" floor joists over 12" in depth everF 18' and solid block at supports. 14. Fire block studwalls and partitions (including furred spaces) at floor, ceiling, sofflt and at mid height and along stair str~ngers. Draft stops shall be provided in the following locations. (1) in the concealed apace of a floor ceiling assembly in a single family dwelling dividing the area in to equal spaces not over 1000 sq. ft. (2) Draft steps shall be installed in the attics, mansards, overhangs and similar con- cealed spaces of buildings containing more than one dwelling unit. Such draft stops shall be above and in line with walls separating tenant spaces from ea~h....?ther. OUBC 2516 15. Garage door header shall be min. D.F. #2 w=th double cripples. 16. Use header, beam or rafter sizes not(~d oe the ~s. 17. Trusses shall be engineer ~p$roved. 18. 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 2518 (h)~3 19. Rafter ties spaced max. 4' o.c. are re- quired immediately above ceiling joists which are not parallel to the rafters. OU~_C.. 2518 (h)-4 20. Roof purlins must not be sn%aller than the rafters they support. The max. span for 2 x 4/ 2 x 6 roof purlins is 4' & 6'. For purlin sup- ports provide struts, not smaller than 2 x 4 with an unbraced length not over 8' and not flatter than 45 degrees to the horizontal to ~ea~in~ wall or ~artitions. OUBC 2518 ~ Ail weather exposed plywood shall be EXTERIOR type and at least C~C grade. Attention; Roo~..~verhangs. ~ Provide screened attic vents with a net o~of the attic area (or 1/300 free if half is along eaves and the balance at least 3' higher). OUBC 3205-c 23. 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 than 4" in 12". Composition shingles require a 15 pound asphalt felt base sh~et. Cha~ter 32. 24. Provide min. one hour fire separation be- tween garage and house, Separation shall ex- tend to roof line or across ceiling and re- maining bearing wails, use min. 1 3/8" solid core door. OUBC 503 (d) exception 4. ~ Enclosed usable under stairs shall space be provided with one hour protection on the enclosed side. OUBC 3305-(m) 26. Blements of appliances which create a glow, spark of flame shall be located a min. of 18" above ~arage floor. OUMC 508 27. Appliances subject to mechanical damage shall be guarded by a protective barrier. OURC 5O8 28. Clothes dr~er located in an area that is habitable Or containing other fuel burning ap- pliances shall be exhausted to the outside. OUMC 1903 29. Vent kitchen fan to outside via metal ducts. In bathrooms, water closet compartments, dry rooms and similar rooms, a mechanical ventilation system connected directly to the outside, capable of five air changes per hour shall be provided where there are no openable windows. OUBC 1205-a /1. Provide all habitable rooms with outside windows with net areas of not less than 1/I0 of floor areas nor 10 sq. ft. Every sleepinq~ room s~hall have an exterior door or not less than 5.7 s~. ft. of ~enable window. The min. net clear opening height shall ~e 24 inches. The min. net clear opening width shall be 20 inches. T~_e flnished sill ~i~t.~hall he__not__ m~r~than 44 inches_ OUBC 1204 and 1205(a) 32. Windows between the carport and the dwel- ling shall not be openable. OUBC 1214 33. Provxde at least one 36" swinging (exit) door. OUBC 3303(e)