How to Install

We place the grille in the opening (0,5 cm larger than the dimension of the grille) of the gypsumboard.
Use screws to fasten PVC grille in place, up and down (be aligned), per 20 to 25 centimeters (cm).
Applied spatula (fugenfuller Knauf) around the perimeter of the grille.
- Fill the small gap between PVC surface and gypsumboard by applying a thin and even layer of the special joint filler compound.
- Instantly after and when compound is still wet, place and stick a special fireproof tape (TFO) on it and let it dry.
Using a fine grid sandpaper scrab the surface till becomes smooth and becomes a primer once. Then is ready to be painted.