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I0. 11, 12. 13. 2. An uncoated No. 4 reinforcing bar stubbed up at least 12 inches above the floor plate line and tightly attached to the reinforcing bar located in the footing. Tha spliced lap of the stubbed up bar to the footing bar shall he a minimum of 12 inches. ENCLOsBD ACCESSIBLE SPACE under stairs shall have walls and soffits protected on the enclosed side with 1/2 inoh ~um board. STAIRWAYS shall not be less than 36 inches in dear width at all poims between the handrail height and the required minimum headroom of 6 feet 8 inches. Minimum width from thc handrail down is 32 inches with one handrail, 28 inoh~ with two. The minimum rcquired stair tread width is 9 inches. The maxlrm~m stair rise is 8 incl,. When risers are closed, all treads less than 10 inches shall have a uniform nosing between 314 ~ and 1 1/4 inches. The greatest riser height/lrcad depth shall not exceed ~e smallest by more than 3/8 inch. HANDRAII~ having a minimum and maximum height of 30 inches and 38 inches, respectively, sh~ll he provided on at least one side of stairways of more than three risers. All required h~ralis ~ he continuous the full length of the stairs. Ends shall be returned or shall terminate in newel posts or safety tcrminais. F, xception: Handrails may be interrupted by a newel post at a tom, and the use of a volute turnout or slarQng easing shall he allowed over the lowest Iread. THE HANDGRIP PORTION of handrails shall not be less than 1 1/4 inches or more than 2 5/8 inches in cross-sectional dilnomion, or the shape shall provide an equivalent gripping surface. Thc handg'~ portion shall have a smooth surface and edges shall have a minhnum radius of 1/8 inch. GUARDRAILS. Porches, balconies or raised floor surfaces located more than 30 in. above the floor or grade shall have guardraiis not less than 36 inches in height. Required guardrall ~hall have intermediate rails or omamemal closures which will not allow passage of an object 6 in. or more in diameter. Horizontal spacing between thc vertical members in rcquired guardralis shall he a maximum of 4 inches at the nearest point between ~be members. GUARDRAIL ON STAIRS. Open sides of stairs with a total risc of more than 30 inches above the floor or grade below.shall have guardrails not less than 34 inchas in hcight measured vertically from thc nosing of ~e uends. Guardrail shall have intermediate rails or ornamental closurcs which will not allow passage of an object 6 in. or more in diameter. Horizontal spacing between the vertical members in required guardrails shall be a maximum of 4 inches at the nearest poin~ between the members. EVERY SLEEPING ROOM shall have at least one openable window or exterior door approved for cmergcnoy egre,ss or rescue. The window sill height shall not be more than 44 inches above the floor. The minimum net clear opening is 5.7 square f~t. The minimum net clear opening height shall be 22 inches. The minimum not clear opening width shall be 20 inches. Exceplion: Grade floor windows may have a minimum not ~lear opening of 5 square feet. THE GARAGE shall be separated from the dwelling and its attic area by means of 1/2-inoh ~psum board applied to the garage side of the wall. Where the separation is a floor-ceiling assembly, the siructore supporting the separation shall be protected by 1/2-inch gypsum board or cqnivalent. The door between the garage and residence shall he eqnipped with solid wood doors not lcss than 1 318 inches in thickor~ or 20- minute fire rated, or equivalent. SMOI~ DBTECTORS flmll be Snub, lied in each sleeping room, outside of each separate sleepi~ area in the immediate vicinity of the bedrooms and on each additional story of ~ dwelling ingludln~,, bascrs~/~. All detectors shall be interconnected such flint the actuation of one alarm will actuate all the alanm in the individual unit and shall provide an alarm which will be audible in all sleeping areas. Smoke detectors shall he 110 vo~i~trbaney back-up.' SMOKE DETECTOPSPOWER. Rcqnired smoke detectors shall receivc their primary power from thc building wiring when such wiring is served from a commercial source, and when primary power is inter- ruptod, shall receive power from a hattew. Smoke detectors may he battel~ operated when installed in buildings without commercial power. 2-Stov] Review 2