Polystyrene is a synthetic aromatic polymer made from the monomer styrene. Polystyrene can be solid or foamed. Expanded polystyrene (EPS) is a rigid and tough, closed-cell foam. It is usually white and made of pre-expanded polystyrene beads. Polystyrene is one of the most widely used plastics, the scale of its production being several billion kilograms per year.
Polystyrene foams are produced using blowing agents that form bubbles and expand the foam. In expanded polystyrene, these are usually hydrocarbons such as pentane
Extruded polystyrene (XPS)
Extruded polystyrene foam (XPS) consists of closed cells, offers improved surface roughness and higher stiffness and reduced thermal conductivity. It is slightly denser and therefore slightly stronger than EPS.
Water vapour diffusion resistance (μ) of XPS is very low - making it suitable for application in wetter environments.
Phenolic foam
Phenolic foam insulation is made from a resole resin in the presence of an acid catalyst, blowing agents (such as pentane) and surfactants.
Polyisocyanurate/ Polyurethane foam (PIR/PUR)
Polyurethane (PUR and PU) is a polymer composed of organic units joined by carbamate (urethane) links. Polyurethane can be made in a variety of densities and hardnesses by varying the isocyanate, polyol or additives.
Polyisocyanurate, also referred to as PIR, is a thermoset plastic typically produced as a foam and used as rigid thermal insulation. Its chemistry is similar to polyurethane (PUR) except that the proportion of methylene diphenyl diisocyanate (MDI) is higher and a polyester-derived polyol is used in the reaction instead of a polyether polyol. Catalysts and additives used in PIR formulations also differ from those used in PUR.
Glass mineral wool
Made from molten glass, usually with 20% to 30% recycled industrial waste and post-consumer content. The material is formed from fibres of glass arranged using a binder into a texture similar to wool. The process traps many small pockets of air between the glass, and these small air pockets result in high thermal insulation properties. The density of the material can be varied through pressure and binder content.
Rock mineral wool
Rock (Stone) mineral wool is a furnace product of molten rock at a temperature of about 1600 °C, through which a stream of air or steam is blown. More advanced production techniques are based on spinning molten rock in high-speed spinning heads somewhat like the process used to produce candy floss. The final product is a mass of fine, intertwined fibres with a typical diameter of 2 to 6 micrometers. Mineral wool may contain a binder, often a Ter-polymer, and an oil to reduce dusting
Cellular glass
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.
Wool
Wool insulation is made from sheep wool fibres that are either mechanically held together or bonded using between 5% and 15% recycled polyester adhesive to form insulating batts and rolls. Sheep are no longer farmed primarily for their wool; however, they need to be clipped annually to protect the health of the animal. The wool used to manufacture insulation is the wool discarded as waste by other industries due to its colour or grade
Cellulose
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.
Established in 1995, STS LTD was born out of the desire to do better and the need to bring tiling professionals across the UK fresh solutions to everyday problems. STS are and always have been a family run business. Today, STS is a leading UK manufacturer of fibre cement boards, providing the industry with a range of boards suitable for many applications. Company is best known for NoMorePly® and construction boards which are supplied through a wide range of distributors across the UK and Ireland. In fact, STS is the first manufacturer to give a lifetime guarantee on all our products provided they are fitted as a system using fixing materials.
STS PRODUCT RANGE
Company have become a major leader in field and they are committed to offering tested products whilst not compromising quality. STS comprehensively test products and systems for performance specification requirements. Company offer a varied range of fibre cement building boards including: construction boards and nomoreply boards. Company is proudly certified to BS EN 12467:2016 +A1:2016, EN ISO 1182, EN ISO 1716 & BS EN 10140-22010 standards, operating at all times in accordance with all relevant environmental legislation and building regulations.
STS CONSTRUCTION BOARDS 6mm | 9mm | 12mm
STS fibre cement construction boards can be used in a wide range of applications both internally and externally, covering 4 key areas including fire protection, sound reduction, moisture resistance and render application.
These robust fibre cement boards are great for many applications including: cladding receivers, sheathing board, render carrier, tile backing, sound reduction, fire protection, sound reduction, thermal properties and termite resistance.
The boards are particularly suitable for partition walling in damp or wet areas, such as bathrooms. They are also weather-resistant, so can be exposed to poor weather on site during the construction phase without concern. Due to their fibre cement composition and structural strength, they are superior to traditionally used flooring boards. By using the 12mm STS Construction Board you have the assurance of a solid foundation meaning not only a stunning render finish, but also the peace of mind that it will last for years and remain crack free. Construction Boards are also A1 fire rated and an ideal board to use behind wood burning stoves. The density of STS Construction Boards provides the perfect solution for decibel (dB) reduction for party wall partitioning. In fact, the STS Construction Board system offers up to 50dB reduction. Boards come in variants: 1200x800x9mm, 1200x2400x9mm, 1200x800x12mm, 1200x2400x12mm. Being strong, STS 12mm Construction Board can accept wall mounted fixings without the need to secure to stud beams. Boards are easily fixed to timber or metal stud work, and to solid walls using STS fixing products. Moreover, panels will also support fittings such as toilet roll holders, shower curtain rails, vanity mirrors, shelves and pictures when appropriate fixings are used. Furthermore, fibre cement provides a unique bonding surface for thin coat render systems and comes highly endorsed by industry leading render manufacturers such as K-Rend, Atlas and Ecorend. As well as the great bonding surface of fibre cement, the high strength and rigidity of the STS board along with great weatherproof properties provides the perfect render board carrier.
NOMOREPLY® TILE BACKER 6mm | 12mm | 18mm | 22mm
NoMorePly is a range of high performance fibre cement tile backer boards. Made from a mix of Portland cement, sand, organic cellulose fibres and water, fibre cement is a modern material that’s engineered using an environmentally friendly process. In fact, NoMorePly is used to create the perfect foundation on which to tile floors and walls. It is ideal for bathrooms, kitchens and wet rooms. This industry-leading, fibre cement tile backing system is not only the fastest installation system on the market but also comes with a lifetime guarantee. Boards are 1200mm x 600mm which is 0.72m². With tongue and groove to four sides, boards slot together easily. Plus, since board edges don’t have to fall onto a joist, there’s less cut to waste. As one of the most recognised tile backing solutions, you can install this system with absolute confidence, knowing that it is not only backed by a guarantee but comes with many key features including:
Water Resistance
High Strength
Thermal Properties
Termite Resistance
Suitable Internally & Externally
Thin Profile (avoids steps into the tiled area)
Easy & Fast to install
The NoMorePly tile backer range consists of floorboards, wallboards and overboards:
22/18mm Floorboards are tongue and grooved on all four sides and designed to be laid direct to joist. Fibre cement is an excellent conductor of heat making these boards ideal for use with underfloor heating and a good alternative to wet screed.
12mm Wallboards are fixed direct to stud work and are designed to carry the heaviest tiling materials, up to 100kg/m², plus satisfy the latest industry standards for wall tiling substrates.
6mm Overboards are used to strengthen timber floors and overcome deflection without unnecessary floor height build up.
STS CEMBER RENDER BOARD SCREWS
The CEMBER External Render board screw is a high-performance screw designed specifically for use with 12mm STS Construction Board. When installing our Render boards it is important to ensure the screws used are flush, strong and suitable for high levels of moisture and weathering. The Ruspert® coating on the screws is a perfect barrier for all corrosion, rust and weathering. These screws are 38mm long and come in a handy plastic box of 250 screws.
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38mm STS Cember Render Board Screw (box of 250) is an external render board screw designed specifically for use with render carrier boards and fibre cement sheet materials.
Render Board Screw features an anti-corrosion coating to create a strong, weatherproof, rustproof hold, suitable for impact ..
38mm STS Cember Render Board Screws
External render board screws (box of 250)
Render carrier boards and fibre cement sheets
Strong, weatherproof, rustproof hold
Suitable for impact driver drill or standard cordless
6mm STS Render Carrier Board Class A1 is a highly-durable construction render board suitable for use on metal and timber structures, an ideal board for use with thin-coat silicone render.
STS Render Board 6mm x 1200mm x 2400mm is composed of heavy-duty fibres which create a high-strength and impa..
6mm STS Render Carrier Board Class A1
Highly-durable construction render board
For use on metal and timber structures
Ideal board for use with thin-coat silicone render
9mm STS Render Carrier Board Class A1 is a strong and durable construction render board suitable for use on metal and timber structures, an ideal board for use with thin-coat silicone render.
STS Render Board 9mm x 1200mm x 2400mm is composed of heavy-duty fibres which create a high-strength and ..
9mm STS Render Carrier Board Class A1
Highly-durable construction render board
For use on metal and timber structures
Ideal board for use with thin-coat silicone render
STS Render Carrier Construction Board 12mm Fire Rated Class A1 is an external construction render board suitable for use on metal and timber structures, an ideal render-board for use with silicone based thin-coat renders.
12mm Render Board 2400mm x 1200mm is composed of heavy-duty fibres which cr..
12mm STS Construction Board Class A1
Highly-durable construction render board
For use on metal and timber structures
Ideal board for use with thin-coat silicone render