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530 N. Santiam Hwy., Detroit <br />August 2, 1993 <br />Page 2 <br /> <br />Table NO. R-304.3b <br /> <br /> FILL [N FEET~ S~JPPO~T]NG INCHES' .... <br /> ~%8~NRY ~ HORIZONTAL BAR ~IZE AND <br /> ~CRETE ~LLS IN UPPER 12 SPACING OF <br />~Ryz MORE THAN 4 LESS THAN 8 ~ 2-No. ~ No- ~ ~ 18" <br /> 8 OR LESS 8 TO 10 8 2-No. 4 No. 3 ~ 18" <br /> O.C. <br /> ~ 0R LESS 10 ~0 ~2 8 ~-N0. 5 NO. ~ ~ 18" <br /> MORE TSAN 8 DESIGN REQUIRED DESIGN REQU[EED DESIGN REQU]EED DESIGN <br /> REQUIRED <br /> <br />1Thickness of concrete walls may be 6 inches, provided reinforcing {s pieced not less than 1 inch nor more <br />than ~ inches from the face of the walk not against the earth. <br /> <br />~solid masonry shall include solid brick or concrete units and ho[Iow masonry units with ail ceils grouted. <br /> <br />The structural supports for decks, balconies, porches or similar <br />structures shall be pressure-treated wood to protect against decay. <br />(R-309.1) <br /> <br />Handrails meeting the following requirements shall be provided on at <br />least one side of stairways. The handgrip portion of handrails shall be <br />not more than 2 5/8 inches in cross-sectional dimension, or the shape <br />shall provide an equivalent gripping surface. Handrails shall be <br />mounted between a minimum of 30 inches and a maximum of 38 inches. They <br />shall be continuous the full length of the stairs. ~nds shall be <br />returned or shall t~rminate in newel posts or safety terminals. <br />(R-214.1) <br /> <br />6= <br /> <br />Firestopping shall be provided in the following locations: <br /> A) In concealed spaces of stud walls, including furred spaces, <br /> at the ceiling and floor level; <br /> B) At all interconnections between concealed vertical and <br /> horizontal spaces such as occur at soffits, drop ceilings <br /> etc.; <br /> c) In concealed spaces between stair stringers at the top and <br /> bottom of the run; <br /> D) At openings around vents, pipes ducts, chimneys and <br /> fireplaces at ceiling and floor Level, with noncombustible <br /> materials. (R-402.7) <br /> <br />When alterations repairs Or additions are made to an existing dwelling, <br />the entire building shall be provided with smoke detectors located as <br />required for new dwellings. Smoke detectors shall be installed outside <br />of each separate sleeping area in the immediate vicinity of the bedrooms <br />and on each additional story of the dwelling. (R-215.1) <br /> <br />"APPROVED" only when this sheet is attached to plans <br /> <br /> <br />