To install Pikkuroof:
- Place the element over the rafters, making sure it is evenly aligned and ready to be stretched.
- Working rafter by rafter, firmly stretch the material so it sits straight without sagging.
- Fix the edges to the rafters by driving screws directly through the element.
Each screw is equipped with a soft washer, ensuring secure attachment without damaging the material. According to one source, it is sufficient to attach the film to every second rafter, rather than every first, while another source suggests continuing stretching and fastening along all reinforced edges. For a stable, long-lasting installation, place screws at intervals of 30 to 50 cm. Check that the surface remains smooth and even.