A roof hatch plan includes a twenty-four inch wide by thirty-inch long landing for a step-through approach featuring a self-closing gate verified to open ninety degrees. A forty-two-inch high hatch-mounted guardrail protects open sides. The clearance dimensions include a minimum of two feet six inches by two feet five inches, with a minimum three-foot clearance that may be reduced to twenty-four inches with prior approval where a sixty-degree angled deflector plate is installed on the climbing side of the ladder.
3'-0" MIN. CLR. 2'-5" * 2'-6" MIN. CLR. * WITH PRIOR APPROVAL, CLEARANCE MAY BE REDUCED TO 24" MIN WHERE 60 DEGREE ANGLED DEFLECTOR PLATE IS INSTALLED ON CLIMBING SIDE OF THE LADDER 24" WIDE x 30" LONG LANDING FOR STEP- THROUGH APPROACH SELF CLOSING GATE. VERIFY OPENABLE TO 90 DEGREES 42" HIGH HATCH MOUNTED GUARD RAIL ON OPEN SIDES 7"
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