Introduction

Introduction In recent years, ventilation duct cleaning has grown into a huge industry, in response to surging public concern about indoor air pollution. The industry claims that cleaning ductwork can improve indoor air quality, control molds and other allergens, enhance heating, ventilating, and air‐ conditioning (HVAC) system performance, and reduce energy costs. Yet there is little scientific evidence to support these claims, and poor duct cleaning practices can actually cause or increase air quality complaints. This fact sheet provides guidance on when duct cleaning may be appropriate, how to protect building occupants during duct cleaning, and how to prevent the conditions that drive facility managers to undertake this costly procedure.    

Installation of Access

Installation of Access Doors in Ventilation Ducting
1  Operatives to check all PPE, cleaning equipment and chemicals required for the task. Refer to COSHH assessments supplied for chemicals being used. Operatives to set out all ‘Caution/Warning’ signage required and cordon off cleaning area prior to work commencing.
2  Only trained operatives are allowed to carry out this task.
3  Operatives to ensure that if a ‘Permit to Work’ system is in place, that it is read, understood and signed by those undertaking the task.
4  Operatives to carry out survey of ducting to determine best area for access panel to be fitted.
5  Operatives to erect the necessary access equipment, step ladders or ladders (note where possible tops of ladders should be placed on to a solid surface).
6  Operatives to mark the cutting edge of access door using the template supplied.
7  Operatives to coat along the cutting edge with lubricant.