2.4.2.4.Silos and Grain Storage Bins

(1) Where an enclosed tower silo, horizontal silo, or grain storage bin is connected to an adjacent feed room, mechanical
     exhaust ventilation shall be provided to remove air from the lowest floor level of the feed room to the outdoors at a rate
     not less than 3 air changes per hour.

     (2) The ventilation system of the farm building in which the feed room referred to in Sentence (1) is located shall be
     designed to prevent airflow from the feed room to any other part of the floor area of the farm building.

     (3) Enclosed horizontal silos shall be ventilated by
     (a) openings at roof or eave level with an area not less than 1% of the floor area of the silo that consist of
            (i) a continuous ridge opening,
           (ii) openings in both gable ends, or
          (iii) openings in the eaves on each side of the roof, and
     (b) openings at floor level with an area not less than 1% of the floor area of the silo. (See Note A-2.4.2.4.(3)(b))
     (See Note A-2.4.2.4.(3))

← Previous2.4.2.3. Controlled-Atmosphere Storage Areas (See Note A-Next →2.4.2.5. Below-Floor Storage of Liquid Manure (See Note A

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Code text is reproduced for reference from the Ontario Building Code (O. Reg. 163/24, 2024 Building Code Compendium). This page is provided for general information and is not an official copy. Always verify requirements against the official Ontario Building Code and confirm with your local building department.