Ducting
The type and size of duct used depends on its position within the system and other considerations such as acoustic performance.
Ubbink's design service determines the most appropriate product and will determine the diameter of ducting requred. Options include:

       
 
Uninsulated Ducting
  Uninsulated Ducting

Standard ducting is available in 100mm, 125mm and 150mm diamters and can be used for all ducts running below insulated loft spaces including those requireing up to 1 hour fire resistance.
       
       
 
Insulated Ducting
  Insulated Ducting

Insulated ducting is available in 100mm, 125mm and 150mm and is used within insulated loft areas to reduce the danger of condensation.
       
       
 
Acoustic Ducting
  Acoustic Ducting

This ducting has been specifically designed to provide a solution to transmitted noise into or from ventilated areas.