Pro Clima Roflex Airtight Grommet

Where to use it

Pro Clima Roflex heat-resistant EPDM rubber grommets can be used internally or externally on walls, ceilings, floors and roofs (of more than 15° of pitch).  It is compatible with circular pipes, flues and ducts where you have access to one end and the temperature will not exceed 150°C.  Access to a free end is required so the grommet can be slid onto the pipe or duct like a tight-fitting collar.  Roflex can be used with pipe diameters of 15-320mm.

The smallest size, Roflex 20, has an integrated Tescon Vana self adhesive backing (patch).  All other sizes will require Tescon Vana airtight tape for sealing the grommet to an airtight barrier. Roflex sold in pack sizes of 10 or 15 grommets do not come with tape so please purchase this separately. Tescon Vana's waterproof solid acrylic adhesive will permanently stick to any airtight or windtight membrane, wood-based panel or board, smooth planed or painted timber, metal or plastic.

If the pipe is a flue and the temperature would exceed 150°C, the Eisedicht HotSchott grommet can be used instead. It can resist temperatures up to 250°C.

What is does

Roflex provides an airtight seal around pipes and ducting.  It grips the pipe or duct tightly to provide a perfect airtight seal but also allows the pipe to be repositioned or pulled through the grommet when needed.  Once sealed with Tescon Vana tape, no air can leak from around the pipe. 

The robustness of the EPDM rubber plus the watertight adhesive of the Tescon Vana tape used for sealing means the grommets can also be exposed to external UV and weathering for up to 6 months.

The stretchable heat resistant EPDM material allows for a swift installation and an easily achieved airtight seal.

How it works

The holes are pre-cut on all single-pipe Roflex grommets.  The holes are undersized, and the EPDM rubber is very flexible easily fitting around pipes and duct penetrations passing through airtight materials.

The undersized pre-cut holes tightly grip the outer surface of pipes and duct work.  Once the rubber grommet is stuck to the airtight material being penetrated, any air leakage through gaps around the pipework is fully prevented.

Why we love it

Pro Clima Roflex grommets make airtight detailing and sealing much easier and quicker.  They also allow the pipes and ducts to be pulled or pushed freely through the grommet without compromising the airtight seal. This is much easier than using strips of tape or airtight sealants (mastics) as they do not allow for any movement, replacement or re-positioning of the pipes in the future or during construction.

The Roflex EPDM grommet has a heat resistance of up to 150°C and are suitable for most pipe and duct work sealing requirements.  If additional heat requirements are necessary, such as for sealing around stove flue pipes, the Eisedicht Hotschott grommets with a heat resistance up to 250°C should be used.

System warranty

Pro Clima provide a limited system warranty, backed-up with public liability insurance, for all airtightness system, roof and wall sealing system and construction products that they supply. A 10-year warranty is provided for these products when correctly installed in combination with approved thermal insulation materials and other Pro Clima system products.  When correctly installed in combination with other manufacturers’ products (not made by Pro Clima), a 6-year warranty is provided.