Internationally certified, UAE Civil Defense approved “air master©” fire resisting ventilation and smoke extraction ducts tested successfully under cellulosic fire conditions as per BS476-24:1987, ISO 6944-1985 for Integrity, Stability and Smoke Extraction. The construction of duct is of non-coated type, made of Galvanized Iron Sheets or Stainless-Steel Sheet Metals as per project specifications. Airmaster is the best Fire Rated Duct manufacturers & Suppliers in Oman along with Grilles And Registers, Diffusers, Dampers, Louvers, Fire and Safety, Tapes & Insulation and VAV & Silencer. We supply all over in the middle east, Asian & African countries. Airmaster diversified business into different areas of the construction industry in past few years, such as: Manufacturing of Fire rated Steel & Acoustic doors, HVAC designing & contracting, Manufacturing of Tapes/Adhesives for HVAC & Packaging industry and Fire fighting equipment. Now, we are coming up with another milestone in our product range- “Sheet Metal Ducting” which makes us best ducting company in Oman.
Description
Description

Fundamental Characteristics of Fire Rated Ductwork
Fire rated ductwork usually needs to pass through compartment walls or floors that will have a prescribed fire resistance period in terms of the load-bearing capacity, integrity and insulation criteria, for durations of 30 to 240 minutes. It is a requirement that where these compartment walls/floors are penetrated by HVAC ducts or other building services, the fire performance criteria for the penetrated wall or floor are maintained, such that fire in one compartment may not spread to other areas. So, the fire-resisting duct needs to maintain i.e., not compromise the fire resistance of the wall or floor through which it penetrates. The performance of a fire-resisting duct which penetrates a fire resisting/separating element requires careful consideration by specifiers and controlling authorities. The standard periods of stability and integrity should in all cases be at least equal to those required for the penetrated element of construction. – Blue book
The methods followed for the fire resistance of walls and floors penetrated by ventilation HVAC ducts in building regulatory requirements and under the guidance of BS 9999:
