Our Fibrecement panels are made high-density, cement composite board of high strength and high E-modulus conform European Standard EN 12467. The boards are coated with a multi-layer system, comprising waterbased, pigmented acrylic coatings and a radiation-cured clear topcoat resin.
They require little maintenance and will prove to be an ideal choice for all applications.
Fibrecement ≠ Fibrecement:
The generic term fibrecement describes different products that are designated at different use and application. There are fibrecement floors and lap sidings, ondulated roofing sheets and flat shingles, internal wall separations and external claddings, fire protection boards and, finally, rainscreen panels for ventilated facades, such as FASSCO panels. These products are produced according to different manufacturing technologies. They have different chemical compositions and different physical properties, but are all called fibrecement.
FASSCO ventilated facade panels are made of so-called HD boards, which stands for high-density. High-density is obtained by mechanical compression and compaction. The result are fibre-reinforced cement boards, characterized by high bending strength, high stiffness, at the same time with a high impact strength. Due to high density, they have low porosity, low water absorption and low dilatation; all properties that are of great importance for the „heavy duty“ use in ventilated facades.
The widely used and well-known Medium Density Boards (MD) are for general purpose applications. They are cellulose fibre- reinforced, but contain little cement, which is transformed to calcium silicates in a so-called autoclaving process or vapor pressure curing. These boards cannot be used as rainscreen panels in ventilated facades due to several inferior properties, such as high porosity, high water absorption and high dilatation, that altogether lead to insufficient stiffness and rivet and anchor fixing strength in order to resist wind-load forces on facades of high rise buildings.
Medium density boards can perfectly be used for many interior applications, e.g. decorative wall panels.
High durability under all weather condition
Fibrecement is an ideal building material tested under strenuous conditions such as rain, sun radiation and frost.
A fibrecement panel does not contribution as a fuel to fire (classification A2, s1, d0 according to Standard EN 13501-1)
- Fully ventilated facades on high-rise building’s Interior dry wall construction
- High rise buildings
- Interior applications
HIGH IMPACT STRENGTH
Increased absorption of impact energy by added reinforcement fibers
Ideal for heavy duty applications, such as in:
- Public areas
- Airports and train stations
Our fibrecement offers low porosity and water absorption. This reduces shrinkage or dilatation by changes of
humidity or temperature
- Hot and humid climate
- Wet areas – Bathroom, Kitchen
Our products offer a higher strength and lower weight per surface area than any other bulk material used in ventilated facades
- Simple sub-structure
- Reduced logistic cost
- Safe handling
100% Asbestos free.
We reject all use of asbestos in any of our products and will guarantee this.
Versatile and Stylish
Easily enhance your project allowing for full freedom of design choices in various application areas.
HISTORY OF FIBRECEMENT BOARDS
The idea of using fibrecement in a ventilated facade derives from the cavity wall, which became a common building structure in the late 19th century. Cavity walls were cheaper to build than their solid counterpart, offering improved thermal insulation and more resistant weather protection.
Whilst ventilated facades and rainscreen panels were used earlier, it was in the mid 1950s that
production of large format cement boards started. At the same time, efforts were made to improve the colouring techniques generally practiced at that time. This resulted in a unique panel with
optically flat, semi-matt mineral enamel surface.
In the late 1980s, manufacturers in Germany and Switzerland succeeded in replacing the hazardous fibres by a blend of cellulose and polymer textile fibres as raw material in fibrecement boards. These two companies successfully used the new manufacturing technology to further develop the market for fibrecement in ventilated facades. One of them, Eternit GmbH in Germany, now became exclusive supplier of raw boards to Facade
Corporation for production of FASSCO panels.
Asbestos-free fibrecement boards are coated with newly developed, water-based acrylic paints.
Development of new and innovative coatings continued, aiming at improved durability, colour and design diversity as well as functional
properties. Combining the high performance of the coatings with that of the fibrecement board, resulted in products that gave the architects of
the day an entirely new material for ventilated
facades, providing new possibilities of creative design of a building.
FASSCO panels and coating represent the latest generation in this development.
Today, for high-rise buildings in particular, the outer brick wall is replaced by decorative light-weight fibrecement panels. The benefits are still unchanged to this day: reduced living costs, weather protection for load-bearing wall,
energy and acoustic insulation and giving the building a high-end, aesthetically pleasing finish.
Production Process Rawboards
FASSCO fibrecement panels are manufactured by the Hatschek sheet formation process, which resembles an early paper
The sheet formation involves the following steps:
The raw material recipe consists of portland cement (OPC), amorphous silica, mineral fillers, PVA reinforcement fibres, cellulose fibre, polyethylene fibrids, functional additives and water. These raw materials are mixed to create a slurry.
The fluid mixture is then supplied to several vats with a number of rotating screen cylinders. These cylinders pick up the solid matter removing some of the water in the operation. A belt travels over the top surfaces of the cylinders and picks up a thin layer of fibre cement formulation from each cylinder. The moving belt carries the damp material to a forming drum, around which the successive layers are wound until the required thickness is obtained. Once the desired sheet thickness has been obtained, an automatic cutting knife built into the forming drum is activated and the “green” raw sheet exits onto a conveyor which subsequently transfers it to a stack where the damp sheets are separated with steel plates. The stacked boards then enter the press, which delivers a high pressure to compact the particles in order to increase density and to reduce porosity. The pressing step, besides the increase in mechanical properties, provides surface smoothness.
Curing and Stabilisation
After pressing, the stacked but still flexible green sheets are kept in heated curing chambers in humid atmosphere. When the chemical reaction of cement with water developed sufficient strength by creating calcium silicate hydrate (CSH), the boards can then be de-stacked and piled for further strength development and final hardening in a protected storage area.
Fibrecement has as porous structure that retains humidity and shrinks during drying. Even after full strength development the boards still contain a higher amount of humidity than the equilibrium humidity after installation as Ventilated Facade panels would have. When this initial dry-shrinkage occurs after installation, the panels can be stressed until they crack and loose integrity.
The boards are therefore stabilised in a heated tunnel by drying close to their equilibrium humidity. Only after this process step the boards can be cut to final size or coated as facade panels.