HVAC?

[dtrkyman]

Have a flat roof unit, 3 ton? It sits on wood at the corners(2x6x6ish) and has some extra TPU beneath cut out to protect the roof.

Wood is rotted so I am looking to replace with rubber blocks, most I find are 3 or 4 inch squares, is that enough for weight distribution on TPU roof? Maybe get more for extra support in the center of each side?

HOA wants rubber "isolators"

Thanks