Superglass Superwall 36 Cavity Wall Batt

Superglass Superwall 36 is a reliable, high-quality insulation solution for cavity wall construction. Manufactured from non-combustible glass mineral wool, this insulation batt is approved by the British Board of Agrément (BBA) and is specifically designed to resist moisture thanks to a built-in water-repellent additive. The batts are 455mm wide, allowing them to fit neatly between standard vertical wall ties without the need for excessive trimming. Ideal for building insulation applications, this product helps create an efficient thermal envelope. It also works seamlessly with insulation systems. This not only speeds up installation but also reduces material waste, making it an efficient option for on-site use.

Ideal for Full and Partial Fill Cavity Walls

Superwall 36 is suitable for use in both full-fill and partial-fill applications in new-build external masonry cavity walls. It can be used up to 25 metres high for full-fill projects, and there are no height restrictions for partial-fill use, making it ideal for domestic and non-domestic buildings. For buildings above 12 metres (full fill) and 25 metres (partial fill), additional considerations apply. You can refer to the BBA certificate for guidance on these conditions. The product is approved for use across all UK exposure zones, provided these criteria are met.

Thermal and Fire Performance

While slightly less thermally efficient than its Superwall 32 counterpart, Superwall 36 still offers solid performance with a declared thermal conductivity of 0.036W/mK. It helps improve the overall energy efficiency of buildings while remaining cost-effective. Importantly, Superwall 36 is classified as Euroclass A1 for fire resistance, which is the highest possible rating under BS EN 13501-1 standards. This ensures maximum fire safety for your construction project. It also holds a CCPI (Code for Construction Product Information) assessment mark, with certificate number 005800103/1026, confirming its compliance with transparent product information standards.

Available Sizes and Pack Information

Superglass Superwall 36 comes in two thicknesses to suit your insulation needs: 100mm x 1200mm x 455mm – 8 pieces per pack 150mm x 1200mm x 455mm – 6 pieces per pack These flexible, lightweight batts are easy to transport and handle, making installation quick and straightforward.

Frequently Asked Questions

1. What’s the difference between Superwall 36 and Superwall 32?

The main difference is **thermal conductivity**. Superwall 36 has a conductivity of **0.036W/mK**, while Superwall 32 is slightly more efficient at **0.032W/mK**. Both provide excellent insulation, but Superwall 36 is a more **cost-effective** option for projects where ultra-high performance isn’t essential.

2. Can Superwall 36 be used in high-rise buildings?

Yes, but with limitations. It’s approved for full-fill cavity walls up to **25 metres** in height and partial-fill with **no height limit** under standard conditions. For taller buildings, check the **BBA certificate** for additional requirements.

3. Is Superwall 36 safe to install and handle?

Absolutely. The batts are **non-combustible**, **fibre-bonded**, and easy to fit without causing irritation. They’re designed to be safe for installers and efficient to work with on-site.

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Roof Tiles & Fittings:

We recommend ordering an additional 10% of roof tiles to allow for any breakages that may occur during delivery or handling. Roof tiles are naturally fragile, and having a few extra on site helps prevent delays and ensures your roofing project can be completed without interruption.

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