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I have a large drive that I jet wash each year however each year the drive needs to be re-done as the blocks are becoming more discoloured and have moss around them. can you recommend a sealant I should apply to improve the finish of the drive, reduce the discolouring and keep the moss at bay?
Most people don’t realise that jet washing paving regular is very bad for the surface, jet washing accelerates wear effectively reducing the lift span of the paving, as well as this is makes the surface rougher which is better for moss and algae, allowing them to get a better hold on the surface and finally, jet washing when the sand isn’t sealed can remove too much sand and over time will start to affect the sub base which can cause the block to become unseated and become unstable.
I always recommend the people seal their paving as it helps to reduce the moss and algae build up and protects the surface which means it will last much longer before it needs to be replaced.
The sealer I always use and recommend for block paving is our Block paving and imprinted concrete SP sealer (link below), this sealer will give you the best protection and give the best finish.