Before installation

● Water logging under the decking must be avoided by preparing a water permeable ground structure. This can be achieved by sand layers and gravel
dispersion above.
● Use cement/stone iles or pedestals, to support the sub frame. See drawing.
● Place a rootbarrier under the iles to prevent weeds to grow from under the decking.
● Install the decking boards with a slope of 1-2% to enable water to run off the surface.
● Ensure good venilation of the decking by keeping at least 20 mm space at walls and obstacles and avoid closing the terrace on the sides.
● When the surface underneath the decking is not fast drying, there should be at least 100 mm distance between the decking and the surface
underneath the floor.
● Use sub frame joists with the minimum size of 40x60 mm. Suitable joists are those with the same durability class as the decking; if using steel frame,
the min. thickness is 3mm.Avoid direct contact with the earth.
● Install the boards on sub frame joists with 462.5 mm space between the joists (centre- to-centre).
● Always install cut off outdoor boards on at least 3 sub frame joists.
 

Maintenance

dassoXTR/dassoCTECH decking is pre-finished with WOCA water-based oil on all sides. Suggest to apply one addiional coaing ater installaion in 4-8
weeks when the pores is more open. It is advisable to do regular maintenance 1-2 ime each year.