140mm Thermalite Aircrete Shield 3.6N Block Pack of 40

140mm Thermalite Shield 3.6N Block

The 140mm Thermalite Shield 3.6N Block is a reliable, high-performance solution designed to meet the demands of modern construction. Built to deliver strength, insulation, and long-term durability, it’s a trusted choice for both residential and commercial projects. Thermalite blocks are well known for their excellent compressive strength, alongside strong thermal, fire, and moisture resistance. This balanced performance helps create buildings that are energy efficient, safe, and built to last. Thanks to their lightweight design, these blocks are quick and easy to handle on site, allowing for faster laying and improved productivity. There’s no need for specialist tools or fixings, and once installed, the blocks provide an excellent surface for both internal and external finishes, including render, plaster, and cladding systems. Each block measures 440 x 215 x 140mm and is supplied in packs of 40, making them practical to transport, store, and use on site. This high-performance aerated block offers a practical balance of structural strength, insulation and easy installation, giving customers sourcing aerated blocks a versatile option for cavity walls, solid walls and internal or external applications.

Key Features & Benefits

• 3.6N
• Compressive
• Strength – Suitable for a wide range of structural applications
• Excellent
• Thermal
• Insulation – Helps improve energy efficiency and reduce heat loss
• Fire
• Resistant –
• Contributes to safer building designs
• Moisture
• Resistant – Ideal for use in exposed or damp environments
• Lightweight
• Construction – Faster installation with improved on-site productivity
• Great
• Finish
• Base – Suitable for internal and external finishes

Frequently Asked Questions

What is the 140mm Thermalite Shield block commonly used for?

These blocks are commonly used in external walls, internal loadbearing walls, cavity wall construction, and other structural applications where strength and insulation are required.

Do Thermalite blocks require special tools to install?

No, Thermalite blocks can be cut and installed using standard masonry tools, making them quick and easy to work with on site.

Can these blocks be used with different finishes?

Yes, they provide an excellent background for a wide range of internal and external finishes, including plaster, render, and cladding systems.

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Every order is personally reviewed by our experienced team to ensure everything is correct before dispatch. We offer delivery from as little as the next working day on selected products, so please refer to the dark blue Estimated Delivery box above for the expected delivery timeframe for this item.

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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.

Multiple Products from the Same Supplier

If you're ordering multiple products from the same supplier, your order will be dispatched together once all items are ready. This means the longest lead time will apply.

If you need part of your order sooner, please call us on 01202 113233. We can arrange a split delivery, although an additional shipping charge will apply.