help me for installation spiderlath wood panel

[ludovic]

Hello for application on wood panels  osb3  french panelsto throw(plan) 4 cms of filler

it is necessary to fix the spiderlath directly on panels(signs) or to put as on photos a black plastic? bache?? Or I can have this grey or black bache and how fix it to wood planel thank you for helping me

[Nathan Giffin Vertical Artisans]

Spiderlath is best used when fastened to the substraight