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Weber Saint-Gobain - Official website of the company

Leca® Insufill

Leca® Insufill
Leca® Insufill

Product Benefits

● Extensions ● Conservatories ● Garages ● Refurbishment ● Driveways ● Patios

Leca® Insufill is a lightweight expanded clay aggregate insulation fill material

Product Features

About this Product

Leca® Insufill is an energy-saving lightweight insulation fill for use on most floors prior to the laying of a concrete slab.

Features and Benefits

  • Saves time and money
  • Supplied in 50 litre (15 kg) bags making it easy to use and transport
  • Thermal insulation
  • Can be laid in the bag
  • Made from natural raw materials
  • Safe to handle and chemically neutral

Technical Services

Weber's Customer Services Department has a team of experienced advisors available to provide on-site advice both at the specification stage and during application. Detailed specifications can be provided for specific projects or more general works. Site visits and on-site demonstrations can be arranged on request.

Technical helpline
Tel: (01525) 722110
Fax: (01525) 718988

Sales Contact

Weber products are distributed throughout the UK through selected stockists and distributors. For UK sales enquiries and overseas projects, contact Weber's Sales office.

Sales office
Tel: 08703 330070 (press 1 for sales)
Fax: (01525) 718988


Send or download the documents

You can either send the documents to an email address, or download it

Preparation & Application


Packaging, Health & Safety


Leca® Insufill is supplied in 50 litre (15kg) bags stacked 21 per pallet.

Coverage / Yield

50 litres/m²/50mm thickness.

Storage and Shelf Life

Leca® Insufill does not degrade.

Health and Safety

Leca® Insufill weighs a nominal 15kg, well within the H&SE recommendations for a single-man lift.

Leca® Insufill is chemically neutral and does not contain any environmentally harmful constituents. It is safe to handle and does not need any special protective clothing or special requirements for disposal.