Thermalite Aircrete Block - 140mm - 3.6N

140mm Thermalite aircrete block with 3.6N/mm² compressive strength, 440mm x 215mm face size, and 6...

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Materials Market Trading UK Ltd100Mm Thermalite Aircrete 3.6N Shield Block Natural / Grey
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£2.16
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BradfordsForterra - Thermalite Aircrete Shield Block - 3.6N - 440mm x 215mm x 100mm
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Product Information

Full details

The Thermalite Aircrete Block (140mm, 3.6N) is designed for builders and DIY enthusiasts seeking robust, insulative, and moisture-resistant construction materials for load-bearing walls and outer leaf applications in low-rise buildings. Its key benefit is providing superior thermal and sound insulation due to its closed micro-cellular structure, while also offering high compressive strength and ease of handling. A potential consideration is ensuring proper installation to maximize its performance benefits.

All features

Model Part NumberSSHD1401103GR
BrandThermalite

Extended Product Information

FAQs

What is the primary advantage of using Thermalite aircrete blocks?

The primary advantage is their excellent thermal and sound insulation properties, combined with a lightweight yet strong construction suitable for load-bearing walls.

Are these blocks suitable for use below ground?

Yes, they offer moisture resistance and can be used below ground, but require proper damp-proof courses and protection from continuous saturation as per building regulations.

What is the compressive strength of this block?

The compressive strength of this specific block is 3.6 Newtons per square millimeter (N/mm²).

How do these blocks contribute to energy efficiency?

Their high thermal insulation properties reduce heat loss, leading to lower heating and cooling costs for the building, thus improving overall energy efficiency and reducing CO2 emissions.

Can I use standard mortar with these blocks?

Standard cement, lime, and sand mortar mixes are generally suitable, but it's recommended to consult the manufacturer's guidelines for specific mortar recommendations to ensure optimal performance.

What are the dimensions of this block?

The face size of the block is 440mm x 215mm, with a thickness of 140mm.

Are these blocks fire-resistant?

Yes, Thermalite aircrete blocks have fire-resistant properties, contributing to the overall safety of the building structure.

Troubleshooting

Blocks absorb excessive moisture during construction

Ensure blocks are stored correctly on a dry surface and protected from rain. Implement proper damp-proof courses and consider temporary covering during extended wet weather.

Difficulty achieving tight mortar joints

Ensure blocks are clean and free from dust before laying. Use appropriate trowel techniques to fill joints fully. Check for block uniformity and adjust mortar consistency as needed.

Poor thermal performance observed

Verify that mortar joints are fully filled and there are no gaps. Ensure the correct type of insulation (if any) is used in conjunction with the blocks as per design specifications. Check for air leakage points around openings.

Block chipping during handling or cutting

Handle blocks with care, using appropriate lifting aids where necessary. Use a sharp saw blade or a quality block splitter for cutting. Ensure cutting is done on a stable surface.

Pros and Cons

Pros

  • Superior thermal and sound insulation properties.
  • Lightweight for easier handling and faster construction.
  • Good compressive strength suitable for structural applications.
  • Moisture and fire-resistant features enhance durability and safety.
  • Contributes to energy efficiency and reduced CO2 emissions.

Cons

  • May require specific mortar and building techniques for optimal performance.
  • The 140mm thickness might not be suitable for all wall designs or space constraints.
  • Requires protection from prolonged direct water exposure during construction.
  • Compressive strength (3.6N) is suitable for low-rise buildings but may not be sufficient for high-rise structures.

Setup, Compatibility & Care Instructions

Setup:

  1. Foundation Preparation: Ensure a level and stable foundation is prepared according to building regulations, including adequate damp-proof courses.
  2. Mortaring: Use appropriate mortar mixes (e.g., cement, lime, sand) for laying the blocks. Consult manufacturer guidelines for specific recommendations.
  3. Bonding: Lay blocks in a stretcher bond pattern for optimal strength and stability. Ensure consistent mortar joints for thermal continuity.
  4. Cutting: Blocks can be cut using a masonry saw or a sharp block splitter. Wear appropriate safety gear during cutting.

Compatibility:

  • These blocks are compatible with standard building materials such as concrete, timber, and steel lintels, brickwork, and plaster finishes.
  • Ensure compatibility with any required fixings or ties for adjacent construction elements.

Care:

  • Store blocks on a level, dry surface, off the ground, to prevent moisture absorption.
  • Protect blocks from prolonged exposure to adverse weather conditions during storage and construction.
  • Clean any dirt or debris from the blocks before laying to ensure good mortar adhesion.

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