GSE Integration Flexalu Waterproofing Strip - 330mm x 5M

The GSE Integration Flexalu Waterproofing Strip is a high-quality, lead-free aluminium sealing sol...

Best current price£72.00from B&Q

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B&Q - Gse Integration Flexalu In-Roof Waterproofing Strip
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£72.00
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City Plumbing GBGse Black Integration Flexalu Waterproof Strip 330Mm X 5M
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£81.61
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Product Information

Full details

The GSE Integration Flexalu Waterproofing Strip is designed for professional solar installers and homeowners looking for a reliable, lead-free sealing solution for roof-integrated mounting systems. Its primary benefit is providing a robust, watertight barrier that conforms effortlessly to complex roof textures, though its 330mm width may require careful planning when overlapping on steep or irregular pitches.

All features

Model Part NumberFlexalu
BrandGSE

Extended Product Information

FAQs

Is this product compatible with all roof types?

It is highly versatile and works on most slate, tile, and metal roof profiles due to its high malleability.

Does the Flexalu strip contain lead?

No, it is manufactured from high-quality lead-free aluminium.

How do I cut the strip to length?

The material can be easily cut using standard heavy-duty snips or shears.

Can this be used on its own without a GSE mounting system?

While it is designed for GSE integration, it acts as a universal flashing strip and can be used for general roof sealing tasks where flexible flashing is required.

How long will the finish last?

The black finish is designed for outdoor durability and weather resistance, though like all exterior materials, it will perform best when installed in accordance with standard roof flashing practices.

Troubleshooting

Material lifting at the edges

Ensure the strip is pressed firmly into the roof contour and check that it is properly overlapped by mounting components or flashing clips.

Difficult to mold around tight corners

Use a rounded wooden block or rubber mallet to gently tap the material into the crease, ensuring you do not over-stretch or tear the aluminium.

Pros and Cons

Pros

  • Highly malleable and easy to form by hand
  • Environmentally safe lead-free construction
  • Seamless aesthetic integration with solar panels
  • Corrosion-resistant for long-term outdoor durability

Cons

  • Width is fixed at 330mm, limiting use on extremely wide gaps
  • Requires careful alignment to ensure a flat finish
  • Not intended for structural load-bearing applications

Setup, Compatibility & Care

To install, unroll the necessary length and position the strip over the gap between your GSE mounting system and the roof covering. Gently mold the aluminium by hand or with a rubber mallet to conform to the contours of the tile or metal profile. No specialized chemical adhesives are usually required for the strip itself, as its physical positioning under or over the mounting brackets secures it. For maintenance, periodically inspect the seal after extreme weather events to ensure that no lifting has occurred at the edges. Clean the surface periodically with water and a soft brush to remove dust or organic buildup.

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