125MM Isover cavity 32 1200x450 2.73m2Pk 15p/pal

SKU
JPA-50014628

Isover CWS 36 125mm Cavity Wall Slab Insulation – 3.28m² Pack


Available at Joseph Parr, the Isover CWS 36 125mm Cavity Wall Slab is a high-performance insulation solution designed specifically for partial-fill cavity wall applications. Combining excellent thermal efficiency with outstanding fire resistance, this glass mineral wool insulation is ideal for modern construction projects aiming to meet stringent building regulations.


Product Features/Specifications:

  • Thermal conductivity: 0.036 W/mK
  • Pre-cut slabs for easy installation
  • Water-repellent and rot-proof
  • Euroclass A1 fire rating (non-combustible)


Product Benefits:

The Isover CWS 36 slab is engineered to deliver superior insulation performance in cavity wall systems. With a low thermal conductivity of 0.036 W/mK, it significantly improves energy efficiency by reducing heat loss and lowering heating costs. Its non-combustible composition achieves a Euroclass A1 fire rating, providing the highest level of fire protection and peace of mind in both residential and commercial buildings.

Designed for durability, the slabs are water-repellent and resistant to moisture ingress, ensuring long-term performance without degradation. Lightweight and semi-rigid, they are easy to handle and friction-fit neatly within standard cavity widths, minimising gaps and reducing thermal bridging for consistent insulation performance.


Applications and Versatility:

Suitable for a wide range of construction projects, including:

  • Partial-fill external masonry cavity walls
  • New build developments
  • Retrofit and refurbishment projects
  • Residential, commercial, and industrial buildings
  • Traditional brick and block construction systems


Features & Benefits List:

  • Excellent thermal insulation – improves energy efficiency and reduces heat loss
  • Euroclass A1 fire rating – highest level of non-combustible fire safety
  • Water-repellent design – protects against moisture and maintains performance
  • Easy to handle and install – pre-sized slabs for quick fitting
  • Durable and long-lasting – maintains integrity over time
  • Supports regulatory compliance – ideal for modern building standards


Technical Specifications:

  • Brand: Isover
  • Product: CWS 36
  • Thickness: 125mm
  • Coverage: 2.73 m² per pack
  • Slab Dimensions: Approx. 1200mm x 455mm
  • Thermal Conductivity: 0.036 W/mK
  • Fire Rating: Euroclass A1
  • Material: Glass mineral wool insulation
  • Application: Partial-fill cavity wall insulation


Additional Information:

We offer convenient and flexible delivery options to suit every project:

Van delivery for smaller orders - HIAB crane lorry for larger or bulk deliveries - Site delivery available on request

If you need delivery before the estimated date, please contact us and we’ll do our best to arrange an earlier slot.

For more information, please contact either

Oldham on 0161 633 1264

Agecroft on 0161 383 6400

Rochdale on 01706 656 980

Or email us at [email protected]


£45.36 £37.80
/ Each
 
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Isover CWS 36 125mm Cavity Wall Slab Insulation – 3.28m² Pack


Available at Joseph Parr, the Isover CWS 36 125mm Cavity Wall Slab is a high-performance insulation solution designed specifically for partial-fill cavity wall applications. Combining excellent thermal efficiency with outstanding fire resistance, this glass mineral wool insulation is ideal for modern construction projects aiming to meet stringent building regulations.


Product Features/Specifications:

  • Thermal conductivity: 0.036 W/mK
  • Pre-cut slabs for easy installation
  • Water-repellent and rot-proof
  • Euroclass A1 fire rating (non-combustible)


Product Benefits:

The Isover CWS 36 slab is engineered to deliver superior insulation performance in cavity wall systems. With a low thermal conductivity of 0.036 W/mK, it significantly improves energy efficiency by reducing heat loss and lowering heating costs. Its non-combustible composition achieves a Euroclass A1 fire rating, providing the highest level of fire protection and peace of mind in both residential and commercial buildings.

Designed for durability, the slabs are water-repellent and resistant to moisture ingress, ensuring long-term performance without degradation. Lightweight and semi-rigid, they are easy to handle and friction-fit neatly within standard cavity widths, minimising gaps and reducing thermal bridging for consistent insulation performance.


Applications and Versatility:

Suitable for a wide range of construction projects, including:

  • Partial-fill external masonry cavity walls
  • New build developments
  • Retrofit and refurbishment projects
  • Residential, commercial, and industrial buildings
  • Traditional brick and block construction systems


Features & Benefits List:

  • Excellent thermal insulation – improves energy efficiency and reduces heat loss
  • Euroclass A1 fire rating – highest level of non-combustible fire safety
  • Water-repellent design – protects against moisture and maintains performance
  • Easy to handle and install – pre-sized slabs for quick fitting
  • Durable and long-lasting – maintains integrity over time
  • Supports regulatory compliance – ideal for modern building standards


Technical Specifications:

  • Brand: Isover
  • Product: CWS 36
  • Thickness: 125mm
  • Coverage: 2.73 m² per pack
  • Slab Dimensions: Approx. 1200mm x 455mm
  • Thermal Conductivity: 0.036 W/mK
  • Fire Rating: Euroclass A1
  • Material: Glass mineral wool insulation
  • Application: Partial-fill cavity wall insulation


Additional Information:

We offer convenient and flexible delivery options to suit every project:

Van delivery for smaller orders - HIAB crane lorry for larger or bulk deliveries - Site delivery available on request

If you need delivery before the estimated date, please contact us and we’ll do our best to arrange an earlier slot.

For more information, please contact either

Oldham on 0161 633 1264

Agecroft on 0161 383 6400

Rochdale on 01706 656 980

Or email us at [email protected]


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MPN 715828
Delivery Information

We offer FREE local delivery on all orders over £120.00 (inc VAT). For all other orders a 25.00 local delivery charge will apply. We deliver within a 15 mile radius of our depot. (For any distances outside of this radius, please contact your nearest branch and we will be able to accomodate.)

We aim to deliver stocked items usually within 2-3 working days but in busier periods this can sometimes take longer. On receipt of your order we will contact you as soon as possible to advise an intended delivery date, should this delivery date be inconvenient then we will try our best to accommodate a suitable delivery date.

Click & Collect Information

Orders can also be collected from either of our depots. We will contact you by phone or email when your order is ready for collection.

We aim to process your order and have goods ready for collection within the same working day (stocked items only) on all orders placed before 1pm, orders after 1pm will be ready the following working day. In the event of your ordered items being out of stock we will contact you with an estimated lead time on your order.