The ground moves. Patios move.
The first casualty of this movement is usually the cement joints in between the patio or paving slabs.
Repointing need not be the huge dilemma a great many of our costumers have found it to be.
It’s always best to pressure wash the patio first then we can see how much pointing is missing and provide a quote
The mix of sand and cement we will use will depend on the width of your joints.
Pointing of all kinds should be carried out on a dry day and when your patio itself is dry.
Our preferred method is using a dry mix of sand and cement
For joints which are less than ½ an inch (13mm) you should use silver sand. This is more commonly called block paving Sand .
The sand is mixed with cement at a ratio of 1 to 1 and spread out to dry thoroughly.
Using a bucket, we sprinkle this mix along a couple of joints. Using a soft brush, brush we carefully sweep it into the joint.
We then Make sure the joint is absolutely full even to the point of tamping the mix down with a piece of timber.
The most common cause of patio pointing failure is when voids are present either within the joint or under it. These are easily formed when a lump of sand clogs up the joint and it may look as though this joint is full but in fact it is not. Water soon gets into these voids and with a freeze-thaw action soon destroys the rest of the joint.
When the joints are full, brush any surplus off the surface and leave. The moisture in the air, plus the moisture from the ground underneath will send the jointing hard in a while.
If the joints are wider than ½ an inch, the same procedure can be followed. This time use sharp sand and make sure it is dry and ALL the lumps are squashed. This should be mixed at 3 sand to 1 cement. This makes it slightly leaner and even more flexible. It should be left to dry in the same way.
Patios can be pointed quite quickly using this method and providing everything is dry there need be no staining of the slabs associated with ordinary pointing ie wet mortar
Also now there are premixed patio jointing sand so that we have to do it empty the contents onto the patio surface and then sweep it into the joints. Our technicians will make the call as to which method is best to each individual surface.
Call Dean on 07920840972 or email firstname.lastname@example.org
Pointing replacement and repair service covering Maidstone Medway Tonbridge Tunbridge Wells Sevenoaks Orpington Dartford Gravesend Bromley Chislehurst Ashford Canterbury Whitstable Herne Bay Margate Ramsgate Folkestone Dover