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.
25mm URSA Acoustic Partition Insulation Roll APR is a lightweight non-combustible glass mineral wool insulation, offering high level of sound absorption and noise reduction in timber or metal framed internal partition walls, timber or metal framed separating walls and timber separating floors.
UR..
60mm Superglass Multi Acoustic Partition Roll APR Insulation is a flexible unfaced fibreglass mineral wool sound insulation roll used in internal partition walls, framed separating walls and timber separating floors.
Superglass APR Insulation Rolls are non-combustible and have a fire classificati..
50mm URSA Terra Acoustic Insulation Roll is a non-combustible unfaced glass mineral wool sound insulation roll, offering high level of sound absorption and noise reduction in timber or metal framed internal partition walls, timber or metal framed separating walls and timber separating floors.
URS..
80mm Acoustic Partition Roll Superglass Multi-Acoustic Insulation APR is a flexible fibreglass mineral wool sound insulation roll that provides high level of sound absorption and noise reduction in internal partition walls, framed separating walls and timber separating floors.
Superglass APR Soun..
100mm APR Superglass Multi Acoustic Partition Insulation Roll is a lightweight unfaced mineral wool insulation roll that provides noise reduction in internal partition walls, framed separating walls and timber separating floors.
Superglass APR Acoustic Rolls are non-combustible and have outstandi..
60mm URSA Terra Acoustic Partition Roll APR is a glass mineral wool sound insulation roll, offering sound absorption and noise reduction in timber or metal framed internal partition walls, separating walls and floors.
Acoustic Partition Roll 60mm is a cost effective way of insulating both new and..
25mm Acoustic Partition Insulation Roll APR Superglass Multi-Acoustic is a flexible unfaced glass mineral wool insulation roll used in internal partition walls, framed separating walls and timber separating floors.
Superglass APR Rolls are deemed non-combustible and have a fire classification of..
75mm URSA Acoustic Insulation Roll is an A1 non-combustible unfaced glass mineral wool sound insulation roll, offering high level of sound absorption and noise reduction in timber or metal framed partition walls, separating walls and floors.
URSA APR Acoustic Roll 75mm is a cost effective way of ..
100mm APR URSA Acoustic Partition Insulation Roll Glasswool is a lightweight, non-combustible, unfaced glass mineral wool class A1 product used for sound insulation in between the wall, plasterboard, partition, ceiling or floor.
URSA ACOUSTIC ROLL 100mm is a cost effective way of insulating both ..