Start with a regular inspection
Walk the facade at least once a year and after severe weather. Look at joints and sealants, cracks, chips, staining, whitish deposits, plant growth and the drainage around sills and copings.
Photograph the same positions each time. A simple visual record makes it easier to see whether a change is new or has been developing for years.
Clean gently, and test first
Begin with clean water and a soft brush. If a cleaner is needed, choose a pH-neutral product made for natural stone and test it on a small, inconspicuous area first.
Limestone, travertine and marble are calcareous stones that can be etched by acids, so acidic cleaners should be avoided. Very high pressure can also damage surfaces and joints. Ask the stone supplier and the cleaning product manufacturer for their recommendations.
Treat water and salts as the main risks
Keep water from running behind or repeatedly over the stone. Check gutters, flashings, copings, drip details and the spray pattern of any irrigation near the wall.
De-icing salts used near steps, paving and base courses can damage stone, so rinse affected areas and keep salt away from the facade where possible. If a sealer is considered, ask for a breathable product suited to the stone and test it on a sample first.
Keep a record
Log inspections, cleaning products, repairs and any replacement stone, together with the finish and sample references used. Keep the original sample approval with the file.
When a piece needs replacing years later, this record helps the team match the material, the finish and the original intent.
Bring it into your project.
Share your material preference, drawings and delivery destination to start a defined stone supply conversation.
Discuss your project
