When installing a rubber roof, it is often on a flat surface with no pitch. This is where it is important to create a tapered roof system before laying down the rubber.
Using roof ISO recovery board and starting at 2 1/2” we work our way down to 2”, 1 ½”, etc., to ½” pieces in order to create a pitch, or slope for the roof. It’s really easy to overlook this step. You could simply put down a ½” recovery board to adhere the roof to, but this will cause problems later on as water accumulates on the roof.
Below is a 3-part video series showing the exact process, and how easy it is to achieve the desired result.