As with all natural stone products our stone benefits from a simple clean and maintenance routine. Frequency will depend on the type of installation and its location.
- We recommend regular sweeping to remove garden / surface debris when dry, washing with a mild detergent, and rinsing with clean water.
- Choose your brush wisely; steel wool or wire brushes for example can damage the stone leaving marks on the surface.
- Algae, lichens and other flora will develop in damp and shaded areas. These spots may require cleaning on a more regular basis; a mild biocide solution will help the cleaning process and should be applied annually.
- We would not recommend the use of jet or pressure washers. While they clean the stone effectively they can damage the surface of the stone and jointing, and destabilise the installation.
- If a deep, more intensive clean is required then we suggest contacting a specialist cleaning contractor. Please contact us for proven and recommended suppliers.
- It is important to acknowledge that a general toning down of colour will occur due to the natural weathering process, and is perfectly normal.
- Surface treatments can be applied to preserve the appearance and assist cleaning of the stone. We recommend that the customer seek advice from the treatment manufacturer prior to use.
Handling & Repairs
Care must be taken, and a risk assessment carried out, when replacing or repairing a product that involves drilling, grinding or working the materials in general. Appropriate Personal Protective Equipment (PPE) must be used/worn.
Pennant sandstone has a density of approximately 2400 kg/m3. Caution should be exercised when lifting or manually handling, and a risk assessment carried out before undertaking such tasks. If deemed necessary, appropriate handling equipment must be used.
Please be aware that our Pennant sandstone contains high levels of silica.