What is Ductwork?
Almost always the ductwork is hidden from view and its purpose is to ventilate and condition, a number of different types of premises such as hospitals, offices, kitchens, cinemas, museums and theatres. The accumulation of debris is not apparent and if left, this debris can then propagate unwanted allergens or even, provide a breeding/feeding ground for insects and vermin. This can seriously put your staff at risk and pose a health risk to any visitors and customers to your business and seriously affect workers productivity and production.
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How is ductwork cleaned?
Access must first be gained to the system, for the cleaning of the ventilation systems to begin. Even though current ductwork specifications, DW 144, call for access doors at pre-determined locations and distances, it is likely that additional doors will still be required in order for the ductwork to be cleaned, to the standards of B&ES TR/19, HTM 03-01 & HVCA TM26.
A variety of techniques can be used that dislodge the debris from the internal surfaces of the ductwork prior to vacuum removal. Most commonly used in ductwork cleaning of up to 800mm diameter, is the rotary brush system, which can cover long distances and be orientated around bends. The need for the number of access doors is then minimised and the vacuum removal system featuring a filtration system, prevents any dust collecting and re-circulating back into the working area.
What VHS do
Our extensively qualified and experienced surveyors at Ventilation Hygiene Services can accurately quote for any given project by way of a free site survey. Alternatively, drawings can be sent by email so that a linear meterage can be established.
Cleaning of ventilation systems and extract cleaning services is one of the key areas of our expertise.
Our variety of high tech cleaning services are available nationwide, using only the very best of technology and IT infrastructure the industry has to offer.