Bio-growth (e.g., fungi, mold, lichens, etc. on stone tablets and monuments stains and soils surfaces, and can contribute to surface degradation. Cleaning, when appropriately executed, can effectively remove and nullify the negative effects of bio-growth and can helps the survey and recording process by making inscriptions more legible. Cleaning improves the appearance of a burying ground, making it seem cared for and therefore valued, and is effective at deterring potential vandalism. Cleaning also further reveals conditions that may require repair, and is therefore recommended as a early step in the process of recording, assessing, restoring and protecting these vulnerable community resources.
The BGPG team provides a variety of techniques for the cleaning of tablets and monuments using only appropriate materials, tools and methods. BGPG also provides training and guidance in cleaning procedures to volunteers. Instruction and oversight is provided by a professional experienced in “best practices” to avoid irreversible damage to the stones. BGPG follows appropriate national standards of practice, including the use of effective and environmentally safe products.