Though not required, applying a sealant to block paving can assist to avoid moss progress and prolong the lifespan with the blocks. The sealant will fill the cracks and forestall dampness from penetrating the surface, which often can result in damage after some time. ​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​​... https://localdrivewaycompany.co.uk/block-paving-fleetwood/