9.8.8.2.Loads on Guards (See Note A-9.8.8.2.)

(1) Except as provided in Sentences (2), (3), (5) and (6), guards shall be designed to resist the specified loads prescribed in Table 9.8.8.2. (2) The size of the opening between any two adjacent vertical elements within a guard shall not exceed the limits required by Sentence 9.8.8.5.(1) when each of these elements is subjected to a specified live load of 0.1 kN applied in opposite directions in the in-plane direction of the guard so as to produce the most critical effect. (3) For guards within dwelling units and within houses with a secondary suite including their common spaces and for exterior guards serving not more than two dwelling units, where the width and spacing of balusters are such that three balusters can be engaged by a load imposed over a 300 mm width, the load shall be imposed so as to engage three balusters. (4) None of the specified loads specified in Table 9.8.8.2. need be considered to act simultaneously. (5) For guards within dwelling units and within houses with a secondary suite including their common spaces and for exterior guards serving not more than two dwelling units, Table 9.8.8.2. need not apply where the guard construction used has been demonstrated to provide effective performance. (6) Guards constructed in accordance with the requirements in MMAH Supplementary Standard SB-7, “Guards for Housing and Small Buildings” shall be deemed to satisfy the requirements of Sentence (1). Table 9.8.8.2. Specified Loads for Guards Forming Part of Sentence 9.8.8.2.(1) Minimum Specified Loads Horizontal Load Applied Inward Evenly Distributed Location of Guard Horizontal Load Applied Outward on or Outward at any Point at the Vertical Load Applied Elements Within the Guard, Including Solid Minimum Required Height of the at the Top of the Panels and Balusters Guard Guard Guards within dwelling units and 0.5 kN/m or concentrated load of 0.5 kN applied over a maximum width of exterior guards serving not more 1.5 kN/m 1.0 kN applied at any point(1) 300 mm and a height of 300 mm(2) than 2 dwelling units Guards serving access ways to Concentrated load of 0.5 kN applied over equipment platforms and similar Concentrated load of 1.0 kN an area of 100 mm by 100 mm located at 1.5 kN/m areas where the gathering of applied at any point any point on the element or elements so many people is improbable as to produce the most critical effect Concentrated load of 0.5 kN applied over 0.75 kN/m or concentrated load an area of 100 mm by 100 mm located at All other guards 1.5 kN/m of 1.0 kN applied at any point(1) any point on the element or elements so as to produce the most critical effect Notes to Table 9.8.8.2.: (1) The load that creates the most critical condition shall apply. (2) See Sentence (3).