Whilst not essential, implementing a sealant to block paving will help to avoid moss development and lengthen the lifespan with the blocks. The sealant will fill the cracks and stop moisture from penetrating the area, which could result in harm over time. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​... https://localdrivewaycompany.co.uk/block-paving-fleetwood/