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.
Since its formation in 2004, the RCM® has grown to become one of the UK’s leading specialist providers of building façade systems. RCM® is a major supplier of complete through wall solutions to the UK construction industry. Supplying specialist building boards, façades, breather membranes and airtightness solutions, RCM® offers a fully integrated approach to the building envelope whilst delivering on time and budget.
RCM® Products Overview
Company offer a varied range of cement based building boards including:
Multipurpose Class A1 Fire Rated Cement Building Board | RenderFlex Render Carrier Board | Y-wall Class A1 Fire Rated Calcium Silicate Sheathing Board | Cemboard Cement Bonded Particle Building Board
RCM® has experience across all market sectors including timber frame, lightweight steel frame, modular, offsite, healthcare, education, residential, leisure and transport.
Company have become a major leader in field and they are committed to offering tested products whilst not compromising quality. RCM® comprehensively test products and systems for performance specification requirements.
RCM® is committed to working with leading associations within our industry including BBA, TRADA, STA, RIBA, NBS, EXOVA and LUCIDEON. These associations enable RCM® to comply and develop products to the highest possible standards.
RCM is proudly certified in 2011 to ISO9001 and ISO14001. Through ISO 14001 RCM have reduced waste, energy and water use and have improved efficiency.
Company operating at all times in accordance with all relevant environmental legislation and building regulations.
From timber to steel frame, high to low rise, internal to external wall linings and buildings with high weather exposure, RCM® have a solution.
DensGlass A1 Fire Rated Sheathing Board 12.7mm is an A1 non-combustible external sheathing board that consists of a fibreglass mat with a gypsum core, designed to provide a high degree of protection from the elements in external cladding constructions.
12.7mm DensGlass Gold Sheathing Board is an ..
6mm RCM Multipurpose Fire Rated Fibre Cement Board is an A1 non-combustible cellulose fibre cement board that provides outstanding strength, weathering and acoustic properties making it an excellent option for buildings over 18m.
Multipurpose RCM boards are suitable for the following construction..
External Cladding - Flooring and Ceilings
BBA Approved - High Impact Resistance
Fire Rated to EN 13501-1 Class A1 Non-Combustible
Cellulose Fibre-Cement Superflex Building Board
RCM Multipurpose can be used as a Tile Backer Board
6mm RCM Renderflex Render Carrier Board is an A2 stable cellulose fibre-cement render carrier board primarily used as base board for polymer modified thin coat render systems.
Renderflex high performance building board has been specially formulated to achieve a strong key between polymer basecoat..
6mm RCM Siltech Fire Rated Calcium Silicate Board is a non-combustible flexible calcium silicate fibre cement board which provides 60 to 120 minutes fire rating and superior workability due to a unique fibre reinforced formulation.
RCM Siltech 6mm can be used in an extensive range of applications..
6mm RCM Y-Wall Fibre Cement Sheathing Board is an A1 fire rated flexible calcium-silicate fibre cement based sheathing board designed for use in ceilings, partitions, exterior cladding and as a sheathing board for buildings over 18m in height.
Benx RCM Y-Wall Fire Rated Sheathing Board 2400mm x 1..
Fire rated, Class A1 Non-combustible
RCM Y-Wall Fibre Cement Building Board
BS EN 13501-1 Class A1 to EN 13501-1
For buildings over 18meters in height
Flexible calcium-silicate cement based sheathing board
8mm RCM Cemboard Cement Bonded Particle Board is a rigid, medium density cement bonded particle building board that can be used behind all types of façade solutions, as well as in many acoustic floor and roof constructions.
RCM Cemboard 8mm x 1200mm x 2400mm offers great strength, stability and e..
Internal linings and flooring application
External sheathing board - under 18m in height
RCM Cemboard cannot be left permanently exposed
RCM Cemboard is not suitable for plaster skim coat
10mm Cemboard Cement Bonded Particle Board RCM is a high performance cement bonded particle building board used behind all types of façade solutions, as well as in many acoustic floor and roof constructions.
RCM Benx Cemboard 10mm x 1200mm x 2400mm offers great strength, stability and excellent a..
Internal linings and flooring application
External sheathing board - under 18m in height
RCM Cemboard cannot be left permanently exposed
RCM Cemboard is not suitable for plaster skim coat
9mm RCM Multipurpose Cellulose Fibre Cement Board A1 is a strong fire rated cellulose fibre-cement building board that offers outstanding strength, weathering and acoustic properties making it an excellent option for buildings over 18m in height.
Multipurpose boards are suitable for the following..
External Cladding - Flooring and Ceilings
BBA Approved - High Impact Resistance
Fire Rated to EN 13501-1 Class A1 Non-Combustible
Cellulose Fibre-Cement Superflex Building Board
RCM Multipurpose can be used as a Tile Backer Board
9mm RCM Renderflex Fibre Cement Render Carrier Board is an A2 dimensionally stable cellulose fibre-cement render carrier board, offering outstanding strength and weathering properties when used in conjunction with polymer thin coat renders.
Renderflex high performance building board has been spec..
9mm RCM Siltech Fire Rated Flexible Board is a non-combustible calcium silicate building board which provides from 60 to 120 minutes fire rating and superior workability due to a unique fibre reinforced formulation.
RCM Siltech 9mm can be used in an extensive range of applications from fire rated..
9mm RCM Y-Wall Fire Rated Sheathing Board is an A1 non-combustible flexible calcium-silicate cement based sheathing board designed for use in ceilings, partitions, exterior cladding and as a sheathing board for buildings over 18meters in height.
RCM Y-WALL High Performance Board 9mm is a BBA cert..
Fire rated, Class A1 Non-combustible
RCM Y-Wall Fibre Cement Building Board
BS EN 13501-1 Class A1 to EN 13501-1
For buildings over 18meters in height
Flexible calcium-silicate cement based sheathing board
12mm Cement Bonded Particle Board RCM Cemboard is a strong high performance cement bonded particle building board that can be used behind all types of façade solutions, as well as in many acoustic floor and roof constructions.
RCM Cemboard 12mm x 1200mm x 2400mm offers great strength, stability a..
Internal linings and flooring application
External sheathing board - under 18m in height
RCM Cemboard cannot be left permanently exposed
RCM Cemboard is not suitable for plaster skim coat
RCM Multipurpose Class A1 Fire Rated Cement Board 12mm is an A1 non-combustible cellulose fibre-cement building board that offers outstanding strength, weathering and acoustic properties making it an excellent option for buildings over 18m.
12mm Multipurpose boards are suitable for the following ..
Coloured Render Systems - EWI
BBA Approved - High Impact Resistance
Fire Rated to EN 13501-1 Class A1 Non-Combustible
Render Carrier Board - Superflex Building Board
RCM Multipurpose can be used as a Tile Backer Board
12mm RCM Benx RenderFlex Render Carrier Board Class A2 is a fibre cement based stable render carrier board, used as base board for polymer modified renders and as an exterior brick and stone slip carrier board.
Renderflex render building board has been specially formulated to achieve a strong key..
12mm RCM Siltech Fire Rated Non-combustible Board is a flexible calcium silicate building board which provides from 60 to 120 minutes fire rating and superior workability due to a unique fibre reinforced formulation.
RCM Siltech 12mm can be used in an extensive range of applications from fire rat..
12mm RCM Y-Wall Calcium Silicate Cement Sheathing Building Board A1 is a fire rated flexible cement based sheathing board designed for use in ceilings, partitions, exterior cladding and as a sheathing board for buildings over 18m in height.
RCM Y-WALL Fire Rated Sheathing Board 12mm is a BBA cert..
Fire rated, Class A1 Non-combustible
RCM Y-Wall Fibre Cement Building Board
BS EN 13501-1 Class A1 to EN 13501-1
For buildings over 18meters in height
Flexible calcium-silicate cement based sheathing board
15mm Fire Rated Calcium Silicate Board RCM Y-Wall Class A1 is a high-quality flexible calcium-silicate cement sheathing board designed for use in ceilings, partitions, exterior cladding for buildings over 18meters in height.
RCM Y-WALL Fire Rated Sheathing Board 15mm is a BBA certified building b..
Fire rated, Class A1 Non-combustible
RCM Y-Wall Fibre Cement Building Board
BS EN 13501-1 Class A1 to EN 13501-1
For buildings over 18meters in height
Flexible calcium-silicate cement based sheathing board
RCM Siltech Fire Rated Board 15mm is a non-combustible flexible calcium silicate fibre cement board which provides 60 to 120 minutes fire rating and superior workability due to a unique fibre reinforced formulation.
15mm RCM Siltech can be used in an extensive range of applications from fire rate..
16mm RCM Cemboard Cement Bonded Particle Building Board is a high performance 2400mm x 1200mm board that can be used behind all types of façade solutions, as well as in many acoustic floor and roof constructions.
RCM Cemboard 16mm thick offers great strength, stability and excellent acoustic prop..
Internal linings and flooring application
External sheathing board - under 18m in height
RCM Cemboard cannot be left permanently exposed
RCM Cemboard is not suitable for plaster skim coat
RCM Cemboard Cement Bonded Particle Board 18mm x 1200mm x 2400mm is a rigid medium density cement bonded particle board used primarily as an external sheathing board in façade solutions, as well as a acoustic floor and roof construction board.
18mm Benx RCM Cemboard offers great strength, stabili..
Internal linings and flooring application
External sheathing board - under 18m in height
RCM Cemboard cannot be left permanently exposed
RCM Cemboard is not suitable for plaster skim coat
20mm RCM Cemboard Cement Bonded Particle Board 8x4 is a rigid high performance CBP building board that can be used behind all types of façade solutions, as well as in many acoustic floor and roof constructions.
RCM Cemboard 20mm x 1200mm x 2400mm offers great strength, stability and excellent aco..
Internal linings and flooring application
External sheathing board - under 18m in height
RCM Cemboard cannot be left permanently exposed
RCM Cemboard is not suitable for plaster skim coat
24mm RCM Cemboard Cement Bonded Particle Board is a medium density high performance rigid building board that can be used behind all types of façade solutions, as well as in many acoustic floor and roof constructions.
RCM Cemboard 24mm offers great strength, stability and excellent acoustic prope..
Internal linings and flooring application
External sheathing board - under 18m in height
RCM Cemboard cannot be left permanently exposed
RCM Cemboard is not suitable for plaster skim coat