After installing the waterproofing membrane, measure the height between the top of the roofing membrane and the bottom of the door threshold (where you’d like the top of the flooring to line up at the doorway). From this number, subtract the thickness of your surface material.

For example: If there is 5-inches of space between the membrane and the door threshold, and your paver thickness is ¾”, you’ll need 4 ¼ -inches of pedestal height. Pedestals will get taller as the roof slopes toward drains or roof edges. Uptec offers an easy solution for adjustments to accommodate sloped surfaces to ensure a perfectly level floor.