The installation of self-adhering modified bitumen over concrete is influenced by several key parameters. These include surface preparation, which must ensure a clean and dry substrate; ambient temperature, ideally between 50°F and 90°F; and humidity levels, as excessive moisture can affect adhesion. Additionally, the type of modified bitumen used and its compatibility with the concrete surface play crucial roles in achieving optimal bonding and performance. Proper application techniques are also essential for successful installation.