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.
Novia STRP Vapour Control Layer is a highly-durable, flame and tear resistant reinforced multilayer polythene laminate used as a vapour control layer within metal profile clad industrial buildings, education sector and commercial properties.
Reinforced Vapour Control Layer can be used in any insu..
Reinforced Vapour Control Layer - 100m2
Translucent, reinforced polythene vapour barrier
Suitable for use in commercial cladding systems
Helps buildings meet the requirements of BS EN 5250
Novia STRP PRO AVCL is a high-spec strengthened and foil laminated polythene vapour-control membrane used in insulated wall, roof and floor applications, including warm flat roofs where high concentrations of moisture vapour need to be controlled.
STRP PRO is a highly-durable tear-resistant membr..
Helps buildings meet the requirements of BS EN 5250:2011
Air-leak barrier and vapour control layer (AVCL)
STRP Pro High Performance Reinforced Foil VCL - 80m2
For use in metal profile clad industrial buildings, the education sector
For use in commercial properties, can be used in any insulated building construction