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Paving Guidelines:
The following is to be used as a guideline only. It is recommended
by JustStone as the manufacturer, that before starting your
project the existing ground must be evaluated and the relevant sub-base and
preparation there-of, be done by the appointed contractor. It is important to remember
that the quality of the installation greatly depends on the correct preparation of the
area prior to the laying of the product.
JustStone does not do product installation and therefore
cannot be held responsible for breakages, chipping or any defects which might arise as
a result of incorrect procedures followed by the contractor or client when laying the
product.
It is important that only experienced installers and contractors be used. Ask for
references and do site inspections of other work done by the contractor before you
commit yourself. Do not use installers who have little or no experience with this type
of product.
Some practical tips when laying JustStone
Products.
Pavers and Cobbles.
- A well prepared sub-base which has been adequately compacted is essential.
- Appropriate drainage is important and provision must be made for rain and water
to run-off easily from the finished paved surface. Get the final levels correct
from the start
- To prevent weeds or grass growing through the joints between the pavers or
cobbles a layer of bidim cloth can be put down over the sub-base. If the paving
slabs are to be well grouted then the bidim cloth should not be necessary.
- Once the sub-base is ready (with or without the bidim cloth) a 20 to 40mm layer
of building sand dry mixed with cement in the ratio of 4:1 is evenly spread over
the area.
- Before laying the paving stones/cobblestones it is important that all surfaces
are clean and free of debris and dust.
- The pavers/cobbles can then be laid down directly onto the sand/cement mix base
and bedded using a rubber mallet. JustStone products are manufactured to
conform to stringent specifications and the paving slabs/cobbles can be butted
against one another if little or no grouting is to be used (depending on the style
of paving stones chosen). The thickness of the pavers is exceptionally uniform and
little or no adjustments are needed in order to maintain a level surface. If the
pavers are to be pointed or grouted a standard gap of 10 to 20mm is usual.
- Once completed the surface can be given a light sprinkling of water (do not
flood).
- If the area is to be grouted or pointed, allow a couple of days in good dry
weather conditions to allow the pavers or cobbles to settle and become solid
before grouting.
- Grouting cement or a semi-dry mix of sand and cement in the ratio of 3:1 can be
used. Make sure that any grouting mix that spreads onto the paving stones is
immediately removed using a damp cloth or sponge. Any grouting mix or cement left
to dry on the pavers will leave a stain and will be difficult to remove.
- Finally once the paving and grouting has been completed the area can be lightly
sprinkled with water several times a day for a few days especially in hot weather.
- Avoid walking on or allowing any heavy traffic such as wheel barrows, to use the
paved area for a few days in order to let the paving settle and cure.
Tiles
Tiles are laid onto a concrete base using cement or tile adhesive cement. It is most
important however, to make sure that the back of the tile is well cleaned using a wire
brush or equivalent. Remember that the product is wet cast and in the process of
curing, a fine layer of loose sand, cement or sludge is left on the back of the tiles.
If this is not removed before the tiles are laid down then in time to come the tiles
can work loose. It is also important to make sure that the entire back surface of the
tile is wet, and coated with tile adhesive or cement. Using spots of adhesive will
also result in tiles lifting in due course.
Tiles are usually laid with a 1 or 2 cm grouting gap although, quite often for effect
a larger grouting gap is used.
Cladding
Our cladding is designed to be butted closely together with no gap allowed for
grouting. The castle Cladding can however be spaced and the finished product is then
pointed as is often done with sandstone.
As with the tiles it is equally important to ensure that the back surface of the
cladding is well cleaned using a wire brush or equivalent. Also ensure that the back
surface is wet before applying the tile adhesive. A rubber mallet is useful to help
secure the cladding.
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