
Next Generation UL 181 Ducting
The problem
Although insulated 181 air duct products are not optimal, they are being used unnecessarily, because up till now, there were no class 0 semi rigid non insulated UL 181 Air Ducts, on the market.
The solution
With new breakthrough technology, Rigiflex is now a flexible class 0 non insulated UL 181 semi rigid Air Duct and suitable for extraction of air to any outlet. The duct can be used anywhere in the roof, using any length and the only restriction would be to ensure that there is a gravity dumper at the source of the extraction from the house.
From rigid UL 181 air ducts / insulated 181 class 1 air duct to a non insulated semi rigid UL 181 class 0 air duct.

Rigiflex for the building industry – Major Advantages
IT’S CHEAPER – Cost savings throughout the entire value chain in the non insulated product vs insulated and rigid (product level, installation, shipment, warehousing, wastage, etc.).
IT’S SAFER – In addition to the normal advantages of semi rigid over rigid duct, GLV non insulated has a Class 0 rating vs insulated duct that has a class 1 rating.
ENERGY EFFICIENT – Allows stable and effective airflow without loss along the way.
IT’S EASY TO INSTALL – The product is much EASIER TO INSTALL, considering it’s mechanical features e.g. the ability to stay stable at a vertical and/or horizontal grip.
FAR LESS WASTAGE – The duct comes in 25ft pieces and only the required lengths are used (vs releasing a 25ft piece of insulated duct that cannot be compacted again).
SAVE A LOT OF SPACE – Due to its ability to compact, it will save a lot of space on shelves and/or in transport.
SPACE SAVING IN TIGHT SPOTS – Can be supplied in an oval shape for space saving in tight spots, wall cavities, etc.
For the complete range of GLV Insulated Ducts, visit the official GLV website Insulated Ducts Archives – GLV INTERNATIONAL LTD.