Installation of GFRC  /  GRC sandstone and limestone cast stone wall cladding tiles



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Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with split-tail stainless steel anchors  : Van de Lente Stone


Installation of Van de Lente Stone GFRC tiles




How to install GFRC / GRC sandstone and limestone cast stone wall cladding veneer tiles : general guidelines

Van de Lente Stone glass-fiber-reinforced-concrete (GFRC / GRC) sandstone and limestone cladding tiles are easy to install, either for internal or external wall cladding. Van de Lente Stone tiles are as beautiful as quality natural cut stone, but stronger, more durable, lighter, and cost effective.
Internal installation of GFRC / GRC wall cladding tiles

Internal wall cladding of Van de Lente tiles is a comparatively simple matter, where installation is mostly done by traditional mortar/adhesive methods. Any experienced professional installer may deliver a perfect outcome, using tiles 1/2" (12mm) or 3/5" (15mm) thick. Internal cladding in busy areas of commercial and public buildings may be done with 1" tiles, either by traditional mortar/adhesive methods, up to a height of 15' (4.5m), or by mechanical anchoring, similar to external cladding anchoring, up to any height required. Mechanical anchoring is actually the installation method of choice for busy areas of contemporary commercial and public buildings.



External installation of GFRC / GRC wall cladding tiles

External cladding is a more complicated endeavour than internal cladding, and needs to comply with more strict building and safety regulations. Determining factors are the height and construction of the building, the climatic conditions prevailing at the building location, and the specifications of the cladding materials used.

In a temperate climate, with low to medium rainfall, no freezing temperatures and low to medium wind loads, waterproof and crack/corrosion resistant GFRC tiles of 3/5" (15mm) thickness may be installed by traditional methods (suitable mortar or adhesive), up to a maximum height of 15' (4.5m). The condition of existing building walls and surfaces, their load bearing capacity and their ability to accept overcladding must be evaluated on location by an architect. In most cases than not, it is possible to overclad with 3/5" (15mm) thick tiles up to a maximum height of 15' (4.5m) without issue.

In all other cases ventilated rainscreen cladding must be installed, complying with strict building and safety regulations. Particular attention must be paid to the ability of the cladding material to withstand high rainfall, along with repeated freeze-thaw cycles without corrosion or cracking, and high wind loads. Van de Lente Stone solid glass fiber reinforced (GFRC) cast stone tiles of only 1" (25mm) meet and exceed building & safety regulation requirements, including suitability for seismic areas, and are used where otherwise much thicker and heavier natural stone tiles would be needed. Tile weight is 10.6 pounds per sqft (57 kg per m2).

Modern ventilated rainscreen cladding has been designed to sustain high rainfall and severe weather without issue. Tiles are supported by stainless steel anchors fixed on the supporting wall, suspended at a distance from the wall surface. Tile joints (1/5" - 5mm) are left open, the free space behind the tiles is ventilated at all times, water and air enter and exit freely, and the free space dries up when rainfall is over. This type of cladding requires our 1" (25mm) thickness tiles which are, naturally, more expensive than our 3/5" (15mm) tiles. Ventilated rainscreen cladding may be installed using inexpensive stainless steel split-tail or dowel anchors, readily available in the European and North American markets. Easily made small-size kerfs (for split-tail anchors) or drilled holes (for dowel anchors) are required in the tile core.

Depending on the structure of the external building walls, and their load bearing ability or lack thereof, use of stainless steel vertical struts (studs/rails) and strut-supports/angles/distancers attached to secure load bearing points of the building structure may be necessary to carry the cladding anchors, instead of fixing them directly on the wall, achieving secure attachment to a solid load-bearing substrate or beam, behind insulation materials and other non-load-bearing wall layers.

Each tile is seated on two anchors installed at its lower side, that support and suspend it. Sustaining anchors are fixed on the wall so that they may fully bear tile load without transferring any load to tiles already installed on the tile courses below. Additionally, two anchors are installed at the top side of the tile, functioning as restraining anchors for the tile below them while also functioning as sustaining/supporting anchors for the tile above them. Restraining anchors are placed at a distance of a few millimeters (usually 2mm, 1/10")above the tile below, so that any load transfer from tiles above to tiles below is avoided. In this way, all tile load is ultimately transferred to the supporting structure of the building through the cladding anchors.

Tile kerfs, made to accommodate anchor tails, are filled with polyurethane (PU) filler (NOT silicone, or grout) preferably immediately before anchor installation, to prevent water from entering and entrenching in the cavity. Any excess filler is wiped out after anchor installation. Installation commences from the lowest left tile of the wall grid, and proceeds from left to right and from bottom to top. Anchors, struts, supports and all other mechanical anchoring parts must be made of stainless steel. Split tail anchors are usually made of stainless steel 1/8" to 1/6" thick (3mm to 4mm), sustaining / restraining tails being up to 1"(25mm) long. A detailed and exact plan of the tile grid (including positioning of anchors, struts and supports) must be made available before any actual installation work is contemplated or carried out.

Please find a simple cladding installation guide by Halfen, manufacturer of cladding anchors, by clicking here. Also, a general cladding installation guide, published by the Marble Institute of America, by clicking here.




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Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with split-tail stainless steel anchors : Top course
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Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with split-tail stainless steel anchors : Bottom course
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Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with split-tail stainless steel anchors : Split tail cladding anchor
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Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with dowel stainless steel anchors : Halfen cladding anchors
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Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with dowel stainless steel anchors : Halfen dowel cladding anchors


Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with dowel stainless steel anchors : Halfen dowel cladding anchors


Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with dowel stainless steel anchors : Halfen dowel cladding anchors


Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with dowel stainless steel anchors : Halfen vertical struts for dowel cladding anchors


Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with vertical struts and dowel stainless steel anchors : vertical struts for dowel cladding anchors


Installation of gfrc / grc cladding wall tiles (sandstone, limestone) ceiling installation with  dowel stainless steel anchors : ceiling cladding anchors


Installation of gfrc / grc cladding wall tiles (sandstone, limestone) ceiling installation with  dowel stainless steel anchors : stainless steel ceiling cladding anchors


Installation of gfrc / grc cladding wall tiles (sandstone, limestone) with dowel stainless steel anchors










Cast stone wall tiles : Product List
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  • GFRC Tiles : Introduction





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