BauderJFRI WFRL Membrane (Water Flow Reducing Layer)

Bauder JFRI WFRL Membrane (Water Flow Reducing Layer) is a flexible sheet of polypropylene strands randomly spun-bonded together, in a CFC free process. UV stabilized to reduce degradation by sunlight. Embossed and textured surface to minimize reflected glare. It is supplied as part of the JFRI Inverted Insulation System to minimize water flow through and below the insulation.


Intended Use

This product known as a Water Flow Reducing Layer (WFRL) is for use as a separator sheet over Bauder JFRI insulation, in order to reduce the cooling effect of rainwater, and therefore improving the thermal performance of the insulation, whilst also helping to reduce the flotation effect reducing the weight of ballast required. Bauder JFRI WFRL Membrane is breathable, therefore will not create a condensation trap within the construction. 

Product datasheet

Technical Data

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Width (Test method: EN 13111) 3.0m
Length 100m
Thickness 0.45mm
Weight 0.1kg/m²
Colour Black
Water Vapour Resistance (Test method: BS EN ISO 12572) 0.011MNs/g