We had our drive block paved last summer and are happy with the result, no sagging or other problems as far as I can see. But over the last few weeks of damp weather the drive has taken on a distinctly green hue, less so where the cars are normally parked. What is this? Is it moss or mildew or something similar growing in the surface of the blocks due to being damp all the time? What can I do to clean it off and stop it coming back?
Any ideas welcome. TIA Andy
Algae. Pressure washer or common chemicals will remove, but nothing will stop it coming back.
Why not call it patina, and have a beer instead?
Jeyes fluid (instructions on can) should kill it off (but yes, it will return)
Is that still a permitted use?
Chris
Careful you don't wash out all the sand.
MBQ
Thanks for the tips, I'll try the chemical route when the weather here is better.
Cheers Andy
Take a look at
Our drive has been clear over the Winter since application. Hope this helps
Sam
Just caught your post. There IS a solution to remove and help prevent it coming back. Take a look at
Step 2 - either apply Batimoss (a fungicide) or Hydromoss (a water repellant sealant)
It works really well and we have had no greening on our drive for the last 5 months over the very wet winter (But do apply in dry weather!)
Hope this helps
Sam
Thanks Sam. Looks promising.
Andy
What does?
That does.
We have a problem of green paving - in locations where the sun doesn't normally get to very much. I well sun exposed areas it isn;t very much of a problem in the summer. But once a year we jetwash everything and that sorts it out just fine!
The jetwasher does a marvellous job, but what with water meters becoming compulsary I may think twice before getting the old beastie out in the future!
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