LWA (lightweight aggregate) is the lightweight alternative to hardcore and secondary insulation.

A revolutionary material made from clay expanded at high temperature in a rotary kiln, LWA makes laying hardcore and secondary insulation a simple one-man operation.

It cuts oversite preparation time by hours and consequently cuts labour costs to a fraction of what they would be using traditional materials.

Everything about LWA is simple. It’s stored in the bag, collected and transported in the bag, laid at the site in the bag and covered in concrete – still in the bag.

There’s no mess, no need for heavy machinery or lifting and no waste. And because it’s so easy to carry, it’s perfect for areas where access is difficult.

• Stored, collected, transported and laid in the bag
• Extremely lightweight and easy to move around site
• Easily and quickly laid by one person in a fraction of the time compared to conventional methods
• No compaction or site machinery required
• No sand blinding required to protect the DPM
• No need to cover hot water pipes prior to laying
• No need for secondary (polystyrene) insulation
• No mess and no waste