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Welcome to our products page

Back to Earth's range includes products sourced for the modern, mainstream construction industry such as hemcrete (hemp-based concrete) as well as 'traditional' building products such as lime mortars/plasters and repair products. Products such as natural insulations, a new earth block which slots together and other innovations will follow shortly.

Advice

Back to Earth is able to provide advice and consultation on the use of these materials at every stage of the process, from design and specification through to construction and maintenance.

Please call us to place your order: 01363 866999

Application of Tradical Hemcrete

Tradical Hemcrete

Lime Technology has launched Tradical ®Hemcrete®, a new product innovation of cast in situ hemp-lime walling. It comprises a unique blend of specially prepared hemp shiv (Tradical® HF) and a special lime based binder (Tradical® HB); which together form a bio-composite building material. The hemp, which forms the key element in these products, is largely grown and havested in the UK. Tradical ®Hemcrete® provides one of the best value materials for low impact, sustainable and commercially viable construction.

Coverage

Coverage rates vary depending on thicknesses and methods of application. 300mm thick wall - approx. 300l per m² spray application or up to 450l per m² for shuttered, 500mm thick wall - 500l per m² for spray application or up to 750l for shuttered.

Pricing

Sold in 200l bales of Tradical HF and 22kg bags of Tradical HB. From £85 per cubic metre.

Prices vary according to use. Please call for exact pricing.

click here to download a basic fact sheet

click here to download a detailed fact sheet

Download standard construction details (Zipped folder, 4.2mB)

Please call us to place your order: 01363 866999

Mortars, Plasters and Renders

Ready-mixed Hydraulic Mortars and Sprayable Plasters

There are three standard mortars which cover a range of likely applications both for conservation and new build. These are as follows: -

Limetec eminently hydraulic mortar

For use where a higher level of durability is required; i.e. masonry exposed to severe weather.

Limetec moderately hydraulic mortar

For most normal applications i.e. cavity brickwork, blockwork and stonework.

Limetec feebly hydraulic mortar

For use with softer bricks and stone, solid wall construction and conservation masonry.

Coverage

For bricklaying assume approximately 1kg wet mortar per brick, 25kg dry mortar produces 30kg wet mortar.

A 25kg bag contains approximately 15 liters of mortar.

Pricing

Limetec eminently hydraulic mortar
From £10.50 per 25kg bag
Limetec moderately hydraulic mortar
From £9.75 per 25kg bag
Limetec feebly hydraulic mortar
From £9.75 per 25kg bag
Bulk discounts available. Contact us for details of Silo orders.

click here to download a fact sheet

Lime Putty Mortars and Plasters

Back to Earth lime mortars and plasters use the finest Buxton Lime, local sands and rainwater harvested from the roofs of our buildings to produce high quality products ideal for building conservation.

Coarse mortar

Manufactured with a high quality, extremely versatile coarse sharp sand to give a very low shrinkage multi purpose mortar - used for pointing, bricklaying, stonework, rendering and plastering. This product is sold in 1000kg bags or to special order in 25kg tubs.

Finishing plaster

Manufactured with a fine silver sand (a waste product of the China Clay industry) and ultra fine quicklime to produce a finishing plaster with low shrinkage and good finishing properties. This product is sold in 25kg tubs.

Coverage

For coarse mortar/plaster - when rendering cob/rough stonework 10 - 15 m² per tonne. When rendering brickwork or flat stonework allow 15 - 20 m² per tonne. When laying earth blockwork allow around 150 blocks per tonne of mortar.

For finishing plaster allow 2 - 2.5 m² per 25kg tub.

Pricing

Coarse mortar
From £100 per tonne
Finishing plaster
From £7.00 per 25kg tub
Bulk discounts available
Please call us to place your order: 01363 866999

Natural Hydraulic Limes

During the last 25 years, Lime has enjoyed a steady revival for repairs to historic buildings. The soft, porous and flexible nature of lime mortars and plasters is now universally recognized as being vital to maintain the traditional breathing performance of old buildings. In addition, an increasing number of architects, engineers, surveyors and builders are now beginning to realise that lime has many benefits to offer in new construction: provides one of the best value materials for low impact, sustainable and commercially viable construction.

Coverage

A 25kg bag of hydraulic lime when mixed 3:1 with the appropriate sand will make approx. 125kg mortar /plaster. This is equivalent to 60 liters of mortar or 3 - 4 m² of rendering dependent on surface being rendered.

Pricing

From £9.50 per 25kg bag

Bulk discounts available

Please call us to place your order: 01363 866999

Hemcoat Insulating Plaster

This renovating/insulating plaster, made from a finer grade of hemp shiv than used in Tradical Hemcrete, can be used to build up substantial thicknesses of plaster to upgrade existing solid walls. It is ideal for use in barn conversions or for renovation of cob/stone/brick/buildings.

  • Fully breathable so preventing moisture issues
  • Highly insulating, enabling simple upgrading of solid masonry walls
  • Easy to use and can be built up to substantial thicknesses

click here for a factsheet on Hemcoat hemp/lime plaster (pdf)

Hempire Hemp Plaster

Hempire Hemp Plaster is a unique ready mixed plaster made from the chopped stem of the industrial hemp plant and reacted with lime and pozzolan in a novel process. This process enables rapid drying and hardening making it compatible with both modern and traditional building methods.

Made from sustainable materials sourced entirely from the British Isles, it has been designed specifically for use in zero carbon buildings. It is a very easy to use plaster, comes ready mixed and is suitable for anyone able to plaster.

  • Fully breathable so preventing moisture issues
  • Highly insulating, enabling simple upgrading of solid masonry walls
  • Easy to use and can be built up to substantial thicknesses
  • Manufactured in the British Isles from locally sourced hemp and lime

Click here to download a factsheet (pdf).

Thermafleece Sheepswool Insulation

There now two types of Thermafleece available. The original Thermafleece, which utilises hollow wool fibres, blended to an optimum density producing first class thermal and acoustic performance whilst minimising impact on the environment.

Thermafleece is manufactured to meet the highest quality and performance standards and using British sheep's wool, Thermafleece is the only wool based insulation to hold BBA certification ensuring full compliance with current UK Building Regulations.

Like Thermafleece the new Thermafleece PB20 product harnesses the excellent insulating qualities of British sheep's wool. This is then blended with a mix of recycled polyester to create a sustainable insulating product that can be easily compressed and packaged into a tight roll without losing any thickness once unrolled.

For contractors working on busy build and renovation sites, this has several distinct advantages. The compact nature of the product means it requires less storage space on site and also makes working in cramped installation areas a great deal easier.

Click here for a factsheet on Thermafleece and Thermafleece PB20 (pdf)

Udi range of Diffutherm boards

The Udi ranges are based on a board made from waste wood fibre, which gives high insulation and remains breathable.

The board itself is impregnated with various materials depending on its application; and can be used even for steel and timber framing. These sytems offer extremely fast construction with very good results.

  • Made from waste materials; recyclable and biodegradeable
  • High levels of insulation
  • Suitable for Low or Zero carbon construction

Click here to go to the Udi website for more information.