August 11, 20214 yr comment_21225 Do you have to be certified to fit fire dampers within ventilation systems if you follow the manufacturers installation guidance. Report
August 11, 20214 yr comment_21232 Technically no, but it is strongly recommended as often (not always to be fair) non approved installations are sometimes not correct. However if you feel you are competent to a legally defensible level then it's fine. Report
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