Superglass Superwall 36

The Superwall 36 glass mineral wool for cavity walls is used to insulate the gap between masonry leaves. It is supplied in widths that match typical wall tie spacings, so that it fits with minimal trimming and for quicker installation.

What is Superwall 36?

Superwall 36 is a flexible cavity batt with a thermal conductivity (λ) of 0.036 W·m⁻¹·K⁻¹. It is BBA-certified for cavity applications (full fill and partial fill). In full fill setups, the batt should lightly press against both leaves to seal air gaps as detailed in the BBA certificate.

Superglass Super wall 36 fibres are treated with water-repellent additives that prevent moisture from penetrating the inner masonry leaf. Being vapour-permeable, the batt allows the wall cavity to dry naturally and support long-term wall integrity.

The slab is Euroclass A1 (non-combustible) in accordance with BS EN 13501-1.

What is Superglass 36 cavity insulation used for?

Superwall 36 insulation is used to insulate cavities in masonry walls in new builds or suitable retrofits to reduce heat loss and meet Part L energy requirements.

It is approved for full fill cavity use in buildings up to 25m in height (check BBA conditions for exact limits). However, there are no height restrictions for partial-fill applications. Exposure zones and outer-leaf requirements must follow BBA conditions.

Benefits of Superglass cavity 36 insulation

This is what makes Superglass 36 insulation reliable:

Good thermal performance for mineral wool (λ = 0.036).
Acoustic benefit – As mineral wool, it provides some sound reduction as part of cavity wall build-up.
Helps meet fire safety requirements – Euroclass A1 means it is non-combustible and therefore reduces fire spread.
High water repellence protects against moisture damage.
Chemically inert and safe from mould.
Holds its form and thickness once installed for sustained long-term performance.
Superwall 36 helps achieve the U-value targets required under Part L 2021 for new dwellings. It meets NHBC requirements when installed in accordance with the BBA certificate.
It is made with a high percentage of recycled glass, ensuring low embodied carbon.

At Insulation Wholesale, you can purchase Superglass Superwall 36 at low wholesale prices with fast delivery for most of items within 2-5 days. Competitive rates guaranteed.

FAQ

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Products in Superglass Superwall 36

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100mm Superglass Superwall 36 Cavity Wall Slab 4.37m2 Pack

100mm Superglass Superwall 36 is non-combustible and water repellent glass mineral wool insulation cavity wall batt. The flexible batt is supplied at 455mm wide to allow easy installation between standard vertical wall tie spacings and minimum on-site cutting and waste.

£25.59£30.71 Ex VATInc VAT
£5.86£7.03 Per m2 Add to cart
125mm Superglass Superwall 36 Cavity Wall Slab 3.28m2 Pack

125mm Superglass Superwall 36 is non-combustible and water repellent glass mineral wool insulation cavity wall batt. The flexible batt is supplied at 455mm wide to allow easy installation between standard vertical wall tie spacings and minimum on-site cutting and waste.

£26.35£31.62 Ex VATInc VAT
£8.03£9.64 Per m2 Add to cart
150mm Superglass Superwall 36 Cavity Wall Slab 3.28m2 Pack

150mm Superglass Superwall 36 is non-combustible and water repellent glass mineral wool insulation cavity wall batt. The flexible batt is supplied at 455mm wide to allow easy installation between standard vertical wall tie spacings and minimum on-site cutting and waste.

£32.05£38.46 Ex VATInc VAT
£9.77£11.72 Per m2 Add to cart
85mm Superglass Superwall 36 Cavity Wall Slab 4.37m2 Pack

85mm Superglass Superwall 36 is non-combustible and water repellent glass mineral wool insulation cavity wall batt. The flexible batt is supplied at 455mm wide to allow easy installation between standard vertical wall tie spacings and minimum on-site cutting and waste.

£25.59£30.71 Ex VATInc VAT
£5.86£7.03 Per m2 Add to cart
75mm Superglass Superwall 36 Cavity Wall Slab 5.46m2 Pack

75mm Superglass Superwall 36 is non-combustible and water repellent glass mineral wool insulation cavity wall batt. The flexible batt is supplied at 455mm wide to allow easy installation between standard vertical wall tie spacings and minimum on-site cutting and waste.

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Superglass Superwall 36

What is Superwall 36?

What is Superglass 36 cavity insulation used for?

Benefits of Superglass cavity 36 insulation

FAQ

Where to buy Superglass 36 insulation?

How to fix Superglass 36 insulation?

How to cut Superglass Cavity 36 insulation?

Products in Superglass Superwall 36

100mm Superglass Superwall 36 Cavity Wall Slab 4.37m2 Pack

125mm Superglass Superwall 36 Cavity Wall Slab 3.28m2 Pack

150mm Superglass Superwall 36 Cavity Wall Slab 3.28m2 Pack

85mm Superglass Superwall 36 Cavity Wall Slab 4.37m2 Pack

75mm Superglass Superwall 36 Cavity Wall Slab 5.46m2 Pack