A holistic system, specially developed to provide up to four
hours fire resistance level (FRL) or fire resistance period (FRP),
Vermiduct® is ideal for both steel and plastic ducting, as well
as fan enclosures, dampers, access panels, plenums, wall
penetrations, electrical and data cable trays, and separating
construction. Testing at the CSIRO has proven that Vermiduct®
complies with even the most stringent international standards –
more details are provided on the back of this brochure.
The high thermal conductivity of unprotected sheet metal
ductwork means that its fire resistance is low. Applying
Vermiduct® significantly increases that fire resistance – with no
additional wrap-around or rigid insulation required.
Easy to apply
Vermiduct® is simply applied by spraying using conventional
equipment. A comparatively thin coating is needed (20-25mm
or 35-38mm gives two hours FRL/FRP to British and Australian
Standards respectively), making it a very quick and cost-effective
treatment that cuts down on installation time.
Mechanical reinforcement is needed for supply air ducts, as
well as when applying Vermiduct® to air extract ducts, such as
kitchen exhausts, smoke spill, return air and exhaust air ducts.
Mechanical reinforcement should be equal to Quikmesh® by LAF
and for enclosures on other self-supporting barriers, Trimesh®