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Plan Review Comments Page 8 of 14 b. All wood framing members that rest on concrete or masonry exterior foundation walls and are less than 8 inches (203 mm) from the exposed ground. c. Sills and sleepers on a concrete or masonry slab that is in direct contact with the ground unless separated from such slab by an impervious moisture barrier. 43. The ends of wood girders entering exterior masonry or concrete walls having clearances of less than 1/2 inch (12.7 mm) on tops, sides and ends. 44. Wood siding, sheathing and wall framing on the exterior of a building having a clearance of less than 6 inches (152 mm) from the ground or less than 2 inches (51 mm) measured vertically from concrete steps, porch slabs, patio slabs, and similar horizontal surfaces exposed to the weather. 45. Wood structural members supporting moisture-permeable floors or roofs that are exposed to the weather, such as concrete or masonry slabs, unless separated from such floors or roofs by an impervious moisture barrier. 46. Wood furring strips or other wood framing members attached directly to the interior of exterior masonry walls or concrete walls below grade except where an approved vapor retarder is applied between the wall and the furring strips or framing members. 47. R317.1.5 Exposed glued-laminated timbers. The portions of glued-laminated timbers that form the structural supports of a building or other structure and are exposed to weather and not properly protected by a roof, eave or similar covering shall be pressure treated with preservative, or be manufactured from naturally durable or preservative-treated wood. Stairs 48. IRC Stairway minimum clear width is 36 inches. Maximum tread rise is 7 3/4 inches and minimum tread run is 10 inches. The dimensions of any one treads run or riser shall not vary from the dimensions of any other treads run and rise by more than 3/8 inch. Stairways having four or more risers shall have at least one handrail. The handrail grip shall be placed not less than 34 inches or more than 38 inches above the nosing of the stair treads. The handrail grip shall not be less than 1 1/4 inches and not more than 2 inches in cross-sectional dimension or the shape shall provide an equivalent gripping surface. The handrail grip shall have a smooth surface with no sharp corners. Handrail grip ends shall start at a point directly above the top riser of a flight to directly above the lowest riser of the flight. The handrail ends shall be returned or terminated in newel posts or safety terminals. Hand grip shall extend not more than 4.5 inches into the minimum clear width of the stairway. Handrails adjacent to a wall shall have a space of not less than 1.5 inches between the wall and the handrail. 49. There shall be a floor or landing at the top and bottom of each stairway. The width of the landing shall not be less than the width of the stairway served. Every landing shall a minimum dimension of 36” inches measured in the direction of travel. [R311.5.4:] i. Exception: A floor or landing is not required at the top of interior flight of stairs, including stairs in an enclosed garage, provided a door does not swing over the stairs. A flight of stairs shall not have a vertical rise larger than 12’ feet between floor level or landings. 50. R303.7 Stairway illumination. All interior stairways shall be provided with a means to illuminate the stairs, including the landings and treads. Interior stairs