In the US, earthen floors last 20-30 years as long as they are maintained with a fresh coat of oil every 3-5 years. In Rwanda, given that floors are typically washed every day, we anticipate that the floor will last 10-15 years and that revarnishing will be required every few years.
Revarnishing is easy and can be done by customers themselves. They can simply purchase a bottle of varnish and re-apply according to our floor maintenance manual and as they see fit. If customers would rather have one of our trained employees re-apply the varnish, we will send someone over for free during the regular warranty period of six month and for a small fee later down the road (based on the few hours it will take a mason or varnish specialist to work through the application).