The property
Known geometry, surfaces, access and nearby canopy create a property-specific starting point.
WashScope is exploring how recorded cleaning condition, available environment history and completed visits can inform timing. These estimates need professional review and are not validated predictions of material decay.
Timing estimates are experimental. Their accuracy needs to be checked against repeated inspections and completed work.
Known geometry, surfaces, access and nearby canopy create a property-specific starting point.
Weather and seasonal inputs provide context. Their effect on cleaning buildup is still being evaluated.
Past observations, completed work and time between visits provide evidence for reviewing the estimate.
Your preferred cleanliness level helps frame the proposed work and experimental timing estimate.

Record what the professional finds and what was completed. Repeated observations can support future evaluation of timing estimates; improvement is not yet established.
Use the property evidence to review any proposed work. Capture observations and timing estimates do not certify material condition or warranty compliance.
The evidence already connected to the property and who supplied it.
Experimental guidance that needs current evidence and professional review.
New weather, a site observation or a different preferred standard.