The VILPE Power A power-fastener is used to fasten new roof covering and/or insulation material onto old bitumen felt roofs, or to fasten insulation sheets onto other material (e.g. styrox, foam sheets and polyurethane sheets). The fastener’s square body is stronger than other models on the market, and prevents the tool from spinning around during the installation process. In cases where there are several layers of bitumen on the roof – or if the bitumen is old and hardened – the fasteners may require pre-drilling. This can be done with an 8mm drill or, if necessary, an even thicker drill. Power-fasteners with round bodies should be installed with 6-angle installation bits. Find the right product for your needs below: