Portland Stone Internal Wall Linings can be used in a variety of locations ranging from Commercial and Public Buildings to domestic properties. Wall Linings are designed to cover a structure and carry no load. There are three types of Internal Wall Linings that are designed by the method of attachment.
The load of the cladding can either be supported with a load bearing fixing or the load of each stone can be transferred to the structure which will allow for open joints if required.
Most internal stonework is designed at 50mm thick, but it may be appropriate to consider using thinner stones.
Joints are normally specified as 5mm +-1.5mm. The mortar for the joints should match the colour of the stone and be slightly weaker than the stone. The recommended mix is: 1 White Portland Cement, 2 Hydrated Lime and 8 to 9 Portland Stone Dust.
The backing structure needs to be properly prepared to ensure that it is sufficiently accurate, will provide the correct adhesion and will carry the load of the stonework.
Consideration should be given at the design stage to the provision of movement joints. The type and location of movement joints involves consideration of the construction materials, bedding systems, anticipated temperature and humidity conditions, the size of the area to be tiled and the movement joints in the existing structure.
The designer will need to ensure that the adhesive is suitable for Portland Stone and the intended backing structure. In some cases additional mechanical fixings may be required. Advice should be sought from adhesive manufacturers, but the designer should be aware that 400x400mm 20mm thick is likely to be the maximum tile that most adhesives can reliably hold.
The tolerance for standard tiles allows the designer to have 4m joints +-1mm. The grouting operation should not start until the bedding has thoroughly cured and can be completed using a proprietary grout or white cement/Portland Stone Dust mix.
There are a number of new lightweight products on the market that are applicable where weight is a critical factor.
Delivery and Packaging
All products leaving our works are packed in a manner to ensure safe delivery to site.
Storage and Handling
A suitable storage area will need to be set aside for the stone, which should be stored on firm, level surfaces and, to avoid contamination, should be sited away from wet or muddy areas.
The stone panels should be fixed to a suitable backing structure that is capable of holding and restraining the stonework. This can be blockwork, brickwork, metal frame or stud walls providing they are designed to carry the load.
Portland Stone Internal Wall Linings can be used in a variety of locations ranging from Commercial and Public Buildings to domestic properties. Wall Linings are designed to cover a structure and carry no load.
Sealing or impregnating the walling is an option if the stones are in an area that is possibly subject to staining.