It is usually recommended to wash your block paving not less than once a year to forestall moss advancement. Nevertheless, the frequency may depend on your place, local climate, and level of shade. Should you discover moss escalating, it's best to wash it straight away to forestall it from spreading. https://bookmarkboom.com/story18377909/the-smart-trick-of-block-paving-kirkham-that-nobody-is-discussing