Is it necessary to pre-drill the Ecolat for attachment to the Ecopics?

Is it necessary to pre-drill the Ecolat for attachment to the Ecopics?

Pre-drilling the Ecolat slats is not necessary, unless you want to screw less than 2 cm from the edge of the Ecolat.
Please also refer to the Ecolat edging installation manual for further clarification or check our installation video via our YouTube channel.