The guidance in paragraph 2.8 states that openings which are intended to be open for long periods to reduce overheating risk might pose a higher risk of falls from height.
Mae'r canllawiau ym mharagraff 2.8 yn nodi y gallai agoriadau y bwriedir iddynt fod ar agor am gyfnodau hir i leihau'r risg o orgynhesu achosi risg uwch o ddisgyn o uchder.