playparc 4FCIRCLE Springfeld Montageanleitung Seite 14

Preparation of the Sub-Surface
Allways ask a qualified professional for advise on preparation of your sub – surface.
A. Concrete Sub-Surfaces
For best results (and long lasting areas) when installing rubber-tiles we recommend
concrete as a sub-surface and „total glue down" as adhering method.
Concrete sub surfaces must be at least 28 days old (thoroughly cured and free from
hydrostatic pressure) before any rubber tiles are adhered to such ground. Make sure that
the surface is level, clean and dry.
A good drainage is key to a long lasting area. A slope of app. 1 - 2% is usually sufficient
(1-2 cm in height per 100 cm in length) to eliminate standing water. Make sure that there is
no ponding anywhere in your area.
Bonding failure very often results of moisture! Make sure that rubber-tiles and sub-surface
are free of moisture.
B. Asphalt sub-surfaces
Must be cured for at least 120 days. They should be free of oil, grease and all other
contaminants. Pressure wash and remove loose material prior to installation and allow to
dry totally.
A good drainage is key to a long lasting area. A slope of app. 1 - 2% is usually sufficient
(1-2 cm in height per 100 cm in length) to eliminate standing water.
Bonding failure very often results of moisture! Make sure that rubber-tiles and sub-surface
are free of moisture.
C. Compacted granular surface
Rubber-Tiles of more than 30 mm in thickness can also be laid on a compacted granular
surface.
Excavate the area to a depth of app. 30 cm. A rough recommendation for the first level is
app. 20 cm of crushed gravel (app. 0 - 32 mm). Moisten and compact using a flat plate
vibratory compactor.
Fill in a 6 cm top layer of fine crushed gravel, (app. 0-8 mm stones, do not use „round
stones"). The use of a little cement and sand will result in smoother surfaces. Moisten and
compact again.
For good results we suggest to install filter cloth over the top of the compacted surface.
Each lane should overlap the next by at least 10 cm.
Ask a regional professional for advice. They do best know any specifics for the soil in your
region!
14
12.04.005