Here in Carnforth, sealing shields your driveway or patio similar to a raincoat would you. This sealing system keeps h2o at bay, in order to say farewell to h2o damage. Carnforth block paved driveways that are now being put in onto grass or bare earth, will need approximately 9" (230mm) https://localdrivewaycompany.co.uk/block-paving-carnforth/