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.
38mm British Gypsum Gyproc ThermaLine PIR is an Insulated Plasterboard made from 12.5mm Gyproc WallBoard bonded to a 25.5mm rigid PIR (polyisocyanurate) foam with a multi-layer kraft aluminium facings on both sides of the insulation foam board.
Gyproc Thermaline PIR 38mm is a simple and cost-effe..
38mm Gyproc ThermaLine PIR Insulated Plasterboard
Multi-layer kraft aluminium facings on both sides
For both refurbishment and new build projects
Simple and cost-effective 2 in 1 insulated plasterboard
Provides insulation and dry lining in one operation
53mm Gyproc ThermaLine PIR Insulated Plasterboard consists of 12.5mm Gyproc WallBoard bonded to a 40.5mm rigid PIR (polyisocyanurate) foam with a multi-layer kraft aluminium facings on both sides of the insulation foam board.
British Gypsum Gyproc Thermaline PIR 53mm is a simple and cost-effectiv..
53mm Gyproc ThermaLine PIR Insulated Plasterboard
Multi-layer kraft aluminium facings on both sides
For both refurbishment and new build projects
Simple and cost-effective 2 in 1 insulated plasterboard
Provides insulation and dry lining in one operation
Gyproc Thermaline PIR Insulated Plasterboard 63mm is a 12.5mm Gyproc WallBoard plasterboard bonded to a 50.5mm rigid PIR (polyisocyanurate) foam with a multi-layer kraft and aluminium foil facings on both sides of the insulation foam board.
63mm British Gypsum Gyproc Thermaline PIR is a simple an..
63mm Gyproc ThermaLine PIR Insulated Plasterboard
Multi-layer kraft aluminium facings on both sides
For both refurbishment and new build projects
Simple and cost-effective 2 in 1 insulated plasterboard
Provides insulation and dry lining in one operation
BG Gyproc Thermaline PIR Insulated Plasterboard 78mm is a high performance insulated panel consists of a 12.5mm Gyproc WallBoard plasterboard bonded to a 65.5mm rigid PIR (polyisocyanurate) foam with a multi-layer kraft and aluminium foil facings on both sides.
78mm British Gypsum Gyproc Thermali..
78mm Gyproc ThermaLine PIR Insulated Plasterboard
Multi-layer kraft aluminium facings on both sides
For both refurbishment and new build projects
Simple and cost-effective 2 in 1 insulated plasterboard
Provides insulation and dry lining in one operation
93mm British Gypsum Gyproc Thermaline PIR Insulated Plasterboard is an insulated panel consists of a 12.5mm Gyproc WallBoard plasterboard bonded to a 80.5mm rigid PIR foam with a multi-layer kraft and aluminium foil facings on both sides.
Gyproc Thermaline PIR 93mm is a smart and cost-effective 2..
93mm Gyproc ThermaLine PIR Insulated Plasterboard
Multi-layer kraft aluminium facings on both sides
For both refurbishment and new build projects
Simple and cost-effective 2 in 1 insulated plasterboard
Provides insulation and dry lining in one operation