Technical Booklet V Glazing·Page 16·4.5
Protection from falling through opening
Where there is a danger of a person falling through the opening whilst operating a window, skylight or ventilator, an opening limiter should be considered or the opening must be guarded to comply with Part H.
Where there is a danger of a person falling through the opening whilst opening, closing or adjusting a window, skylight or ventilator, a suitable opening limiter should be considered or the opening guarded to comply with Part H.
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