Largely manufactured from recycled glass (e.g. windscreens) and mineral base materials such as sand and without the use of binding agents. The ingredients are melted into molten glass, which is cooled and crushed into a fine powder. The powdered glass is poured into molds and heated (below the melting point) in a "sintering" process that causes the particles to adhere to one another. Next, a small amount of finely ground carbon-black is added and the material is heated in a "cellulation" process. Here, the carbon reacts with oxygen, creating carbon dioxide, which creates the insulating bubbles in the (material). CO2 accounts for more than 99% of the gas in the cellular spaces.
Cellulose insulation is a material made from recycled newspaper. The paper is shredded and inorganic salts, such as boric acid, are added for resistance to fire, mould, insects and vermin. The insulation is installed either blown or damp-sprayed depending on application.
Wood fibre
The success of wood fibre insulation derives from an attractive environmental profile combined with a whole bag of functions including rigid insulation, sheathing and sarking for timber frames, roofs and flooring as well as flexible insulation for studs and rafters.
Wood of course is renewable, it sequesters carbon during its growth and product production is relatively free from pollution. The insulation value of wood fibre boards is not as dimensionally efficient as some of the orthodox petro-chemical materials - but it's no slouch either - typically coming in with a 'k value' range of between 0.038-0.043 W/mK depending on format.
Hemp
Hemp fibres are produced from hemp straw of the hemp plant. Most hemp is imported, but an increasing amount of home-grown crop is becoming available. Hemp grows up to a height of nearly 4 metres within a period of 100-120 days. Because the plants shade the soil, no chemical protection or toxic additives are required for hemp cultivation. The product is composed of, usually, 85% hemp fibre with the ballance made up of polyester binding and 3-5% soda added for fire proofing.
Straw
Straw is an agricultural by-product, the dry stalks of cereal plants, after the grain and chaff have been removed. Straw makes up about half of the yield of cereal crops such asbarley, oats, rice, rye and wheat.
600mm Void Pack Pipe System for Dufaylite Clayboard Void Former is an accessory with a 36mm hole diameter used to introduce water into the Clay Heave Board core after pouring and setting the concrete.
Voidpak pipes system is a plastic pipe with rubber flange for seamless jointing to the protectiv..
For 60mm, 110mm and 160mm Dufaylite Clayboard
600mm VoidPak Pipe System for Clay Heave Void Former
36mm pipe diameter used to introduce water into the Clayboard
Void Pack Pipe is required every 24m2 or for every isolated area
Accessory Plastic Pipe with rubber flange for seamless jointing
60mm Heave Stopper Clay Heave Protection Board (Ground Heave Solution) is an alternative construction void former to Dufaylite’s Clayboard and Cordek Cellcore that is suitable for Ground Beams and Slabs to protect foundations.
Heave Stopper 60mm is a BBA approved 2400mm x 1200mm honeycomb board u..
Alternative to Dufaylite’s Clayboard and Cordek Cellcore
Construction Void Former Ground Heave Solutions
Heave Stopper 120kn/m2 - concrete thickness up to 1000mm
110mm Heave Stopper Clay Heave Protection Board is an alternative construction void former to Dufaylite’s Clayboard and Cordek Cellcore that is suitable for Ground Beams and Slabs to protect foundations against ground movement.
Heave Stopper 110mm is a BBA approved Ground Heave Solution 2400mm x ..
Alternative to Dufaylite’s Clayboard and Cordek Cellcore
110mm Construction Void Former Ground Heave Solutions
Heave Stopper 120kn/m2 - concrete thickness up to 1000mm
160mm Heave Stopper Clayboard is a construction void former, an alternative to Dufaylite Clayboard and Cordek Cellcore that is suitable for Ground Beams and Slabs to protect foundations against ground movement.
Heavestopper 160mm is a BBA certified 2400mm x 1200mm environmentally friendly honeyco..
Alternative to Dufaylite’s Clayboard and Cordek Cellcore
Construction Void Former Ground Heave Solutions
160mm Heave Stopper 120kn/m2 - concrete thickness up to 1000mm
450mm Void Pipe for Heave Stopper Clayboard is an accessory to make provision to introduce water in to the Heave Stopper boards by way of the Void Pipe.
A Void Pipe is required every 24m2 – 25m2 or for every isolated area of Heave Stopper Ground Heave Solution Board.
Tie the Heave Stopper Clay..
For 60mm, 110mm and 160mm Heave Stopper
450mm Void Pipe for Heave Stopper Clayboard
Accessory to make provision to introduce water
Void Pipe is required every 25m2 or for every isolated area
Alternative to Dufaylite Clayboard & Cordek Cellcore
600mm Void Pipe for Heave Stopper Clay Heave Board is an accessory to make provision to introduce water in to the Heave Stopper boards by way of the Plastic Void Pipe.
Void Pipes 600mm are required every 25m2 or for every isolated area of Heave Stopper Ground Heave Solution Board.
Remeber to T..
For 60mm, 110mm and 160mm Heave Stopper
600mm Void Pipe for Heave Stopper Clayboard
Plastic Accessory to make provision to introduce water
Void Pipe is required every 25m2 or for every isolated area
Alternative to Dufaylite Clayboard & Cordek Cellcore